AMITY INSTITUTE [PDF]

AMITY INSTITUTE FOR COMPETITIVE EXAMINATIONS E - 25, Defence Colony, New Delhi - 110024. Ph. : 24336143/44. B - 1/623, Main Najafgarh Road, Janakpuri, New Delhi - 110058. Ph.: 25573111/12/13/14. Amity Campus, Sector-44, Noida - 201303. Ph.: 95120-2431842, 2431839.

(MEDICAL – 2011) C.B.S.E.PATTERN (OBJECTIVE)

S

-1

TESTET CODE - 1

Class XI Module Test – 2 Time : 3 hours Date : 03/12//2011

M.M. : 800

TOPICS COVERED: P HYSICS CHEMISTRY Botany

: : :

Centre of Mass, Conservation of Momentum, Rotational Mechanics

Zoology

:

Cell Biology

Gaseous State, thermodynamics, Chemical Equilibrium Photosynthesis and Respiration

INSTRUCTIONS : (1) The paper contains 200 objective type questions (50 each in Physics, Chemistry, Botany & Zoology). Four alternatives are given for each question out of which only one is correct. Darken the correct alternative on the given answer-sheet, with a pencil or pen. (2) All the questions carry four marks each. (3) For each incorrect answer 1 mark will be deducted. (4) For unattempted questions the award is neither positive nor negative. (5) No student is permitted to leave examination hall before the time is complete. (6) Use of calculator is not permitted. (7) Use of unfair means shall invite cancellation of the test. (8) Answer once marked should not be changed.

Physics

Chemistry

Botany

Zoology

Objective Total

Name of the Student :________________________________________________________ Centre

:________________________________________________________

Invigilator’s Signature:________________________________________________________

PHYSICS & CHEMISTRY Choose the correct answers : 1.

A long plank P moving with velocity 2 m/s has a cylinder rolling over it. The angular velocity of cylinder is 2 rad/s. If radius of cylinder is 10 cm, the velocity of the top most point of cylinder will be

6.



m

(1) MR2 (2) (3/4) MR2 (3) MR2 /2 (4) 2MR2 A rod PQ of mass M and length L is hinged at one end P. The rod is kept in horizontal position by a massless string tied to point Q as shown in figure. When the string is cut, the initial angular acceleration of the rod is :

2 m/s

p

String P

(1) 2.4 m/s (2) 4.4 m/s (3) 2.2 m/s (4) 4 m/s 2 A solid sphere, a hollow sphere and a disc, all having same mass and radius, are placed at the top of a smooth incline and released. Least time will be taken in reaching the bottom by (1) the solid sphere (2) the hollow sphere (3) the disc (4) all will take same time. 3. A sphere can’t roll on (1) a smooth horizontal surface (2) a smooth inclined surface. (3) a rough horizontal surface (4) a rough inclined surface 4. A cannon ball is fired with a velocity of 200 ms–1 at an angle of 60º with the horizontal. At the highest point of its flight it explodes into 3 equal fragments, one going vertically upwards with a velocity 100 ms–1 and the second going vertically downwards with a velocity of 100 ms–1. The third fragment will be moving with a velocity (1) 100 ms–1 in the horizontal direction (2) 300 ms–1 in the horizontal direction (3) 300 ms–1 in a direction making an angle of 60º with the horizontal (4) 200 ms–1 in a direction making an angle of 60º with the horizontal 5. M. I. of a circular loop of radius R about the axis given in figure is :

7.

(1) (g/L) (2) 2(g/L) (3) (2/3)(g/L) (4) (3/2)(g/L) A rigid body rotates about a fixed axis with variable angular velocity equal to t, at time t . and  are constants. Find the angle turned through by the body before coming to rest : (1)

 2β

(2)

  – β2 2

  – β2 ( –β)  (4) 2β 2 One quarter sector is cut from a uniform circular disc of radius R. This sector has mass M. It is made to rotate about a line perpendicular to its plane and passing through the centre of the original disc. Its moment of inertia about the axis of rotation is (3)

8.

(1)

y

R/2

Q L

Axis of rotation

Rough Work

[2]

(2)

1 MR 2 4

1 MR 2 (4) 2MR 2 8 The acceleration of a solid cylinder rolling down an inclined plane of inclination 30º is (1) g/3 (2) g/2 (3) g (4) g/4 (3)

9.

1 MR 2 2

15.

10. A mass M is supported by a massless string wound round a uniform cylinder of mass M and radius R. On releasing the system from rest, the acceleration of mass M is :

A block of mass m slides down along the surface of the bowl (radius R) from the rim to the bottom. The velocity of the block at the bottom will be (1)

(  Rg )

(2) 2 (  Rg )

(3)

(2 Rg )

(4)

16.

Two skaters A and B weigh 40 kg wt and 60 kg wt respectively stand facing each other 5 m apart. They then pull a light rope stretched between them. Where will they meet ? (1) 2.5 m from A (2) 2 m from A (3) 3 m from A (4) 1.5 m from A 17. A bomb travelling in a parabolic path under gravity, explodes in mid air. The centre of mass of fragments will (1) move vertically upwards and then downwards (2) move vertically downwards (3) move in irregular path (4) move in the parabolic path as the unexploded bomb would have traveled 18. A loaded spring gun of mass M fires a ‘shot’ of mass m with a velocity v at an angle of elevation . The gun is initially at rest on a horizontal frictionless surface. After firing , the centre of mass of the gun-shot system (1) remains at rest (2) moves with a velocity vm/M cos  in the horizontal direction (3) moves with a velocity vm/M (4) moves with velocity v(M-m)/(M + m) in the horizontal direction 19. Three identical bricks of length l are placed on the top of each other as shown in the figure so that the part of each overhangs the one below. Find in terms of l, the maximum value of the total overhung x.

R

M

(1) g (2) g/2 2 g (3) (4) depends on R 3 11. A ballet dancer is spinning about a vertical axis with an angular velocity of 20 rad/s. If she suddenly changes her angular velocity to 10 rad/s, the new moment of inertia would be (I is initial moment of inertia) (1) 2 I (2) 3 I (3) I/2 (4) I/3 12. A solid cylinder of mass M and radius R rolls without slipping down an inclined plane of length L and height h. What is the speed of its centre of mass when the cylinder reaches the bottom ? (1)

2gh

(2)

( gR )

3 gh 4

4 gh (4) 4 g h 3 13. A circular disc X of radius R is made from an iron plate of thickness t, and another plate Y of radius 4 R is made from an iron plate of thickness t/4. The ratio of moment of inertia IY / IX is (1) 32 (2) 16 (3) 1 (4) 64 14. A ball kept in a closed box moves in the box making collisions with the walls. The box is kept on a smooth surface. The centre of mass (1) of the box remains constant (2) of the box plus the ball system remains constant (3) of the ball remains constant (4) of the ball relative to the box remains constant (3)

l 2 3l (3) 4 (1)

Rough Work

[3]

l 4 11l (4) 12 (2)

25. The centre of mass of a body (1) lies always at geometrical centre (2) lies always inside the body (3) lies always outside the body (4) lies within or outside the body

20. The velocities of two equal masses A and B are 13 ms–1 and – 14 ms–1 respectively. What will be their respective velocities after they suffer one-dimensional elastic collision ? (1) – 14 ms–1 and 13 ms–1 (2) – 13 ms–1 and 14 ms–1 (3) 0 and 13 ms–1 (4) 0 and 14 ms–1 21. In a one-dimensional elastic collision, the relative velocity of approach before collision is equal to (1) sum of the velocities of the bodies (2) e times the relative velocity of separation after collision (3) 1/e times the relative velocity of separation after collision (4) relative velocity of separation after collision 22. A wire of length L and uniform linear mass density  is

26. A wheel of moment of inertia 4  10–2 kg m2 is making 240 revolutions/min. It is stopped in 2 seconds. Then, its angular retardation is (1)  rad/sec2 (2) 2 rad/sec2 (3) 4 rad/sec2 (4) 8 rad/sec2 27. A grindstone is in the form of flat circular disc of diameter 0.5 m and mass 16 kg. Due to applied torque, it attains angular velocity of 120 rpm in 8 seconds. The rate of work done by the torque at the end of 8 seconds is (1) 2 Watts (2) 4 2 Watts (3) 8 2 Watts (4) 16 2 Watts

bent into a circular loop with centre at O, as shown.

28. A hollow sphere of mass 0.3 kg radius 20 cm is rotating about its diameter. Due to the application of a torque, the rotational kinetic energy of the sphere is increased by 224%. By what percent will its angular momentum increase ? (1) 112% (2) 225% (3) 80% (4) 150%

The moment of inertia of the loop about the axis XX is X

X 90º O

(1)

L3 8 2

5 L3 (3) 16 2

(2)

 L3 16 2

29. Two bodies A and B of masses m1 and m2, attached to

3L3 (4) 8 2

light but strong string pass over a fixed smooth pulley of negligible mass. From the initial position of rest,

23. A particle performs uniform circular motion with an angular momentum L. If the frequency of particle’s motion is doubled and its K.E. is halved, then its angular momentum becomes (1) 2L (2) 4L (3) L/2 (4) L/4 24. A long wooden uniform plank of mass 350 kg is floating in a pond. A man of mass 50 kg, initially at one of its ends, starts moving on it towards the other end at a speed of 1 m/min. After 30 s, the displacement of the person with respect to water in the pond would be (1) 50.0 cm (2) 47.25 cm (3) 42.25 cm (4) 43.75 cm

when the two masses are released (m1 > m2), then the acceleration of centre of mass of the bodies will be

m1 B

m m

1 2 (1) m  m g 1 2

m m 

Rough Work

[4]



m m 

2

1 2 (2)  m  m  g 2  1

2

1 2 (3)  m  m  g 1 2



A m2

(4) zero

30. A thin ring and a disc of same moment of inertia roll along a plane surface with the same speed. If Er be the rotational kinetic energy of the ring and Ed be that of the disc, then (1) Er > Ed (2) Er < Ed (3) Er = Ed (4) The relation between Er and Ed depends on the masses of the ring and the disc 31. A particle of mass 100 g is moving with a uniform

35. A body falls from a height of 1 kilometre when released from rest. If the coefficient of restitution during its collision with ground surface is 0.8, the height upto which it rises after the first rebound, is nearly (1) 640 m (2) 512 m (3) 410 m (4) 28 m 36. A sphere moving with velocity v strikes a wall, moving towards the sphere with a velocity u. If mass of the wall is infinitely large, the velocity with which the ball moves, after the collision, is (1) –v + 2u (2) –2u + v (3) –v – 2u (4) –v – u 37. A force-time (F-t) graph for a linear motion is shown in following figure. The segments shown are circular. The linear momentum gained between 0 and 8 seconds is

speed of 8 2 ms–1 in XOY plane, along the line Y = X – 4. The magnitude of the angular momentum about the origin O is (1) 16 2 kg m2 s–1 (2) 0.8 2 kg m2 s–1 (3) 3.2 kg m2 s–1 (4) 1.6 kg m2 s–1 32. A torque acts on a solid sphere of mass 625 g and diameter 40 cm. If the angular displacement produced in the sphere is  = 2t2 + 5t – 3, where  is in radian and t is in second, then torque is (1) 0.16 Nm (2) 0.64 Nm (3) 0.4 Nm (4) 0.04 Nm 33. A solid cylinder is allowed to roll down a rough inclined plane, making an angle  with the horizontal. If s is the coefficient of static friction, then the condition for ‘no slipping’ of the solid cylinder on the inclined surface is (1) s  (1/3).tan  (2) s  (2/7).tan  (3) s  (2/3).tan  (4) s  (2/5).tan  34. E, F, G, H are the mid-points of the sides of a thin square lamina ABCD. The moments of inertia of the lamina about axes through EG, FH, AC and BD are I1, I2, I3 and I4, respectively. If moment of inertia of this lamina about an axis, perpendicular to its plane and passing through its centre O, is I, then the wrong relation is A

H

E

(1) – 2 N-s (2) zero N-s (3) + 4 N-s (4) + 6 N-s 38. A spherical hollow is made in a lead sphere of radius R, such that its surface touches the outside surface of lead sphere and passes through the centre. What is the shift in the centre of mass of lead sphere due to the hollowing ?

O2

R

R R (2) 7 14 R (3) (4) R 2 39. Two particles attract each other and are permitted to move towards each other from rest along the line joining their centres of mass. At a particular moment of time their speeds are v and 2v. What is the speed of their common centre of mass at this instant ? (1) Zero (2) 1.5v (3) v (4) 3v (1)

D G

F

O1

R 2

O B

O

C

(1) I = I1 + I3 (2) I1 + I4 = I2 + I3 (3) I + I1 = I2 + I3 + I4 (4) I = I1 + I2 + I3 + I4

Rough Work

[5]

40. Two blocks of equal mass are tied with a light string which passes over a massless pulley as shown in figure. The magnitude of acceleration of centre of mass of both the blocks is (neglect friction everywhere)

60°

(1)

3 1 4 2

g

44. A shell is fired from a cannon with a velocity v at an angle  with the horizontal direction. At the highest point in its path, it explodes into two pieces, one retraces its path to the cannon and the speed of the other piece immediately after the explosion is (1) 3 v cos  (2) 2 v cos 

 3 (3)   v cos   2

30°

(2)





3 1 g

(4)

3 v cos  2

45. Two particles of mass m1 and m2 in projectile motion   have velocities v1 and v2 respectively at time t = 0.

 3 1 g g (4)  2  2  41. A rope thrown over a pulley has a ladder with a man of mass m on one of its ends and a counterbalancing mass M on its other end. The man climbs with a velocity vr, relative to the ladder. Ignoring the masses of pulley and the rope as well as the friction on the pulley axis, the velocity of the centre of mass of this system is m m vr vr (1) (2) M 2M M 2M vr vr (3) (4) m m 42. A non-uniform thin rod of length L is placed along Xaxis such as its one of ends is at the origin. The linear mass density of rod is  = 0 x. The distance of centre of mass of rod from the origin is L 2L (1) (2) 2 3 L L (3) (4) 4 5 43. Two observers are situated in different inertial reference frames. Then (1) the momentum of a body by both observers may be same (2) the momentum of a body measured by both observers must be same (3) the kinetic energy measured by both observers must be same (4) none of the above

(3)

They collide at time t0. Their velocities become   v´1 and v2´ at time 2t0 while still moving in air. The     value of (m1v '1  m2v '2 ) – (m1v1  m2v2 ) is

(1) zero (2) (m1 + m2) g t0 (3) 2(m1 + m2) g t0 1 (4) (m + m2) g t0 2 1 46. Three particles, each of mass m gram situated at the vertices of an equilateral triangle ABC of side l cm (as shown in the figure). The moment of inertia of the system about a line AX perpendicualr to AB and in the plane of ABC in g-cm2 units will be

Rough Work

[6]

 3 2 (1)   ml  4

(2) 2ml2

 5 2 (3)   ml  4

 3 2 (4)   ml  2

53. The average velocity of an ideal gas molecule at 27oC is 0.3 m/s. The average velocity at 927oC will be (1) 0.6 m/s (2) 0.3 m/s (3) 0.9 m/s (4) 3.0 m/s 54. Non-ideal gas approaches ideal behaviour at (1) High temperature and high pressure (2) High temperature and low pressure (3) Low temperature and high pressure (4) Low temperature and low pressure. 55. Two glass bulbs A and B are connected by a very small tube having a stop-cock. Bulb A has a volume of 100 cm3 and contained the gas; while bulb B was empty. On opening the stop-cock, the pressure fell down to 40%. The volume of the bulb B must be (1) 75 cm3 (2) 125 cm3 3 (3) 150 cm (4) 250 cm3.

47. The moment of inertia of a rod about an axis through its centre and perpendicular to it length is (1/12)ML2 (where M is the mass and L, the length of the rod). The rod is bent in the middle so that the two halves make an angle of 60°. The moment of inertia of the bent rod about the same axis would be (1)

1 ML2 48

(2)

1 ML2 12

ML2 1 2 ML (3) (4) 24 8 3 48. The ratio of the radii of gyration of a circular disc about a tangential axis in the plane of the disc and of a circular ring of the same radius about a tangential axis in the plane of the ring is (1) 2 : 3 (2) 2 : 1

56. The temperature of an ideal gas was increased by a factor of two, at constant pressure. Make the correct statement : (1) The momentum of the gas remains unchanged (2) The average kinetic energy increases by a factor of 2. (3) The mean free path remains constant (4) The r.m.s. velocity increases by a factor of 2 57. Oxygen atom is two times heavier than a methane molecule. At 298 K, the average kinetic energy of a oxygen atom is (1) Two times that of a hydrogen molecule (2) Same as that of a hydrogen molecule (3) Four times that of a hydrogen moelcule (4) Half that of a hydrogen molecule. 58. Two gram of H2 diffuses from a container in 10 minutes. How many grams of oxygen would diffuse through the same container in the same time under similar conditions ? (1) 0.5 g (2) 4 g (3) 6 g (4) 8 g

(3)

49.

50.

51.

52.

(4) 1 : 2 5: 6 The centre of mass of a system of particles does not depend on (1) masses of the particles (2) forces on the particles (3) position of the particles (4) relative distances between the particles When a torque acting upon a system is zero, which of the following will be constant ? (1) Force (2) Linear momentum (3) Angular momentum (4) Linear impulse At constant volume, for a fixed number of moles of a gas, the pressure of the gas increases with rise of temperature due to (1) Increase in average molecular speed (2) Increased rate of collision amongst molecules (3) Increase in molecular attraction (4) Decrease in mean free path. Rate of diffusion of a gas is (1) Directly proportional to its density (2) Directly proportional to its molecular weight (3) Directly proportional to the square root of its molecular weight (4) Inversely proportional to the square root of its molecular weight

59. The van der Waal's equation of state is given by  n 2a   P  V 2  (V  nb)  n RT  

The ratio a/b has the dimensions of (1) atm L-1 (3) L atm mol-2

Rough Work

[7]

(2) L atm mol-1 (4) L mol-1.

65. Given that heats of combustion of ethylene, hydrogen

60. The compressibility factor for an ideal gas is (1) 1.5 (2) 1 (3) 2.0 (4) 

and ethane are –337.0, –68.4 and –373.0 kcal respectively at 25ºC, the heat of reaction C2H4(g) + H2(g)  C2H6(g) at 25ºC will be

61. Which of the following is true about gaseous state? (1) Thermal energy = Molecular attraction (2) Thermal energy >> Molecular attraction (3) Thermal energy << Molecular attraction (4) Moelcular forces >> those in liquids. 62. If C1, C2, C3..... represent the speeds of n1, n2, n3... molecules, then the root mean square speed is  n1 C 12  n2 C22  n3 C32  ...   (1)  n1  n2  n3  ...  

(2) (3)

( n1 C 12 ) ½ n1



(1) –32.4 kcal (2) –36.3 kcal (3) –37.8 kcal (4) None of these 66. Which of the following statements is correct about the heat of combustion ? (1) It may be exothermic in some cases and endothermic in other cases (2) It is applicable to gaseous susbtances only (3) It is always an exothermic reaction (4) Its value does not change with temperature 67. Given that : C(gr) + O2(g) CO2(g); H0 = –x kJ 2 CO(g) + O2(g) 2 CO2(g); H0 = –y kJ the enthalpy of formation of CO will be (1) (y – 2x)/2 (2) y – 2x (3) 2x – y (4) (x – y)/y 68. The standard free energy change (G0) is related to equilibrium constant as (1) G0 = RT log K (2) –G0 = RT log K (3) G0 = –2.303 RT log K

½

( n1 C 22 )½ (n C 2 )½  1 3  ... n2 n3

( n1 C 12  n 2 C 22  n3 C32  ...) ½ n1  n2  n3  ...

 (n1 C1  n2 C 2  n3 C3  ...)½   n1  n2  n3  ...  

(4) 

63. H f 0 of CO2(g), CO(g), N2O(g) and NO2(g) in kJ/ mol are respectively –393, –110, 819 and 34. Calculate the H in kJ of the following reaction : 2NO2(g) + 3CO(g)  N2O(g) + 3CO2(g) (1) 836 (2) 1,460 (3) –836 (4) None of these

RT

(4) –G0 = 2.303 log k 69. If the specific heat of a gas at constant pressure and specific heat of a gas at constant volume are Cp and Cv respectively, then (1) Cp – Cv = nR (2) Cv – Cp = R (3) (Cp – Cv)  (molecular mass of gas) = R (4) (Cv – Cp)  (molecular mass of gas) = R 70. A system changes its position from state A to state B. The change in internal energy is given by E = EB – EA. This relationship is valid if (1) The change is brought about in a reversible manner (2) The change is brought about in an irreversible manner

64. Consider the following statements. When an ideal gas expands isothermally and reversibly from 10 L to 20 L then the : (i) Internal energy change is zero (ii) Enthalpy change is zero (iii) Heat absorbed is finite (iv) Work done is finite Of these statements (1) (i) and (ii) are correct (2) (iii) and (iv) are correct (3) (i), (ii) and (iii) are correct (4) (i), (ii), (iii) and (iv) are correct Rough Work

[8]

(3) The sum of the bond energies in the molecule

(3) The change is brought about at constant pressure (4) The change is brought about in any manner

(4) The heat change when 1 mole of the compound is formed form its elements in their standard states

71. For a reversible process, Ssys + Ssurr is (1) > 0 (2) < 0 (3) = 0 (4) 1

76. For an isothermal expansion of an ideal gas, against zero pressure. (which statement is false) (1) U = 0 (2) H = 0 (3) V = 0 (4) W = 0

72. In the Carnot cycle, a process is performed in which the one mole ideal gas is compressed reversibally and isothermally, from P1, V3 and T2 to P4, V4 and T2. During this process : (1) U = 0, q = w = RT2 In (2) U = q, q = –RT2 In (3) U = 0, q = RT2 In

77. Given H°ioniz (HCN) = 45.2 kJ mol–1 and H°ioniz (CH3COOH) = 2.1 kJ mol–1. Which one of the following facts is true? (1) pKa (HCN) = pKa(CH3COOH) (2) pKa (HCN) > pKa(CH3COOH) (3) pKa (HCN) < pKa(CH3COOH) (4) None of these

V4 V3

V4 V3

V4 V3

and w = –RT T2 In

78. In which process the temperature of the system decrease

V4

(1) Adiabatic compression

V3

(2) Isothermal expansion

(4) None of these

(3) Isothermal compression

73. The process of evaporation of a liquid is accompanied by (1) Increase in enthalpy (2) Decrease in free energy (3) Increase in entropy (4) All of these

(4) Adiabatic expansion 79. The oxidation of SO2 by O2 to SO3 is an exothermic reaction. The yield of SO3 will be maximum if (1) Temperature is increased and pressure is kept constant (2) Temperature is reduced and pressure is increased

74. Which of the following is the correct statement of the third law of thermodynamics ? (1) Entropy of all pure crystalline solids may be taken as unity at absolute zero of temperature (2) The standard state for a solid is the pure state of solid at 1 atm pressure and its activity is unity (3) Spontaneous processes are accompanied by increase in entropy as well as increase in the free energy of the system (4) None of these

80. For the reaction C(s) + CO2(g) 2CO(g). The partial pressures of CO2 and CO are 2 and 4 atm. respectively at equilibrium. The Kp for the reaction is

75. The heat of formation (enthalpy of formation) of a compound is

H2(g) + I2(g) 2 HI(g), at reaction temperature is 49. Then, the equilibrium constant for the reaction :

(3) Both temperature and pressure are increased (4) Both temperature and pressure are reduced

(1) 5 atm

(2) 8 atm

(3) 4 atm

(4) 32 atm

81. The equilibrium constant for the reaction :

(1) The heat change when the compound is formed from its elements in their standard states

HI(g) is

(2) The heat change when 1 g of the compound is formed from its elements in their standard states

(1) 7

(2) 1/7

(3) 24.5

(4) None of these

Rough Work

[9]

½ H2(g) + ½I2(g) at the same temperature

87. It K1 is the equilibrium constant for the reaction :

82. The equilibrium constant for the reaction : N2(g) + O2(g)

2 NO(g) is 410–4 at 2,000 K.

2NO(g) + O2(g)

2 NO2(g) and

K2 is the equilibrium constant for the reaction :

In presence of catalyst, the equilibrium is attained ten times faster. Therefore, the equilibrium constant, in presence of the catalyst, at 2,000 K is

2 NO2(g)

N2O4(g)

Then K3, the equilibrium constant for the reaction :

(1) 4  10–5 (2) 4  10–4 (3) 4  10–3

2 NO(g) + O2(g)

N2O4(g) is given by

(1) K3 = K1 / K2

(2) K3 = K1  K2

(4) Difficult to compute without more data. 83. At 700 K, the reaction : 2 SO2(g) + O2(g)

(3) K3 = K1 + K2 (4) K3 = 2 SO3 (g)

K1 K2

88. Two moles of NH3 gas are introduced into a previously evacuated 1.0 L container in which it undergoes dissociation at high temperature :

has an equilibrium constant, Kc = 4.3 106, and the following concentrations are present: [SO2] = 0.01 M; [SO3] = 10 M; [O2] = 0.01 M Is the mixture at equilibrium, yes or no ? If not at equilibrium, in which direction, left to right, or right to left, will reaction occur to reach equilibrium. (1) Yes (2) No, left to right (3) No, right to left (4) There is not enough information to tell 84. Kc for the reaction : N2(g) + O2(g) 2 NO(g) at 300 K is 4.0  10–6. Kp for this reaction would be (1) 4.0  10–6 (RT)2 (2)4.0  10–6 –3 (3) 2.4  10 (4)1.6  10–22 85. A cylinder fitted with a movable piston contains liquid water in equilibrium with water vapour at 25ºC. Which one of the following operations results in a decrease in the equilibrium vapour pressure ? (1) Moving the piston downwards through a short distance (2) Removing a small amount of vapour (3) Removing a small amount of the liquid water (4) Dissolving salt in the water 86. The equilibrium constant for gaseous of reaction. A(l) + B(l) C(l) + D(l) is 100 at 25ºC. Consider the following statements in this regard. If the initial concn. of all four species were 1.0 M each, then the equilibrium concn. of (1) A would be 0.182 mol/L (2) C would be 0.818 mol/L (3) B would be 1.818 mol/L (4) None of these

2NH3(g)

N2(g) + 3 H2(g)

At equilibrium, 1.0 mol of NH3(g) is left. The value of equilibrium constant (K c ) in units of mol2 L–2 is (1) 16/27

(2) 1.00

(3) 27/2

(4) 27/16

89. Sodium carbonate, Na 2CO 3(s), can be made by heating sodium bicarbonate, NaHCO3(s) : 2NaHCO 3 (s) Na 2 CO 3 (s)+CO 2 (g)+ H 2 O(g); Kp = 0.16 atm2 at 100ºC. If a sample of NaHCO3 is placed in an evacuated flask and allowed to achieve equilibrium at 100ºC, what will the total gas pressure be ? (1) 0.16 atm

(2) 0.80 atm

(3) 4 atm

(4) 0.08 atm

90. Which of the following statements is not true regarding chemical equilibrium ? (1) At equilibrium, the concentrations of all the reactants and products becomes stationary (2) The rate of the forward reaction is equal to the rate of the backward reaction (3) The concentrations of the reactants should be equal to the concentrations of the products (4) Chemical equilibrum is a dynamic equilibrium

Rough Work

[10]

91. For the reactions : CaCO3(s)

CaO(s) + CO2(g);

N2(g) + O2(g) H2(g) +

1 2

(3) No effect on equilibrium (4) Kp of the reaction is decreased

2NO(g);

95. The equilibrium constant for the reaction Br2(l) 2Br(g) at 500 K and 700 K are 1  10–10

O2(g) = H2O (l)

and 1  10–5 respectively. The reaction is : (1) Endothermic (2) Exothermic

The equilibrium constants (Kp) can be best described respectively by (1) pCO2; (2)

(3) (4)

p2

NO

pN 2 . pO 2

;

[CaCO 3 ]

pCaCO 3

[CaO]

2NO

p N 2 . pO 2

;

1 pH 2 . pO 2

p1/2

pCaO

[CO 2 ]

1 1/ 2 ; pH 2 pO2

p2

[CaO]

(3) Fast (4) Slow 96. An ideal gas will have maximum density when

;

;

NO

pN 2 . pO 2 p

NO

pN 2 . pO 2

;

T = 600 K T = 150 K

(3) P = 1 atmosphere (4) P = 1 atmosphere

T = 300 K T = 500 K

97. One mole of each of H2, SO2 and CH4 are kept in a container. A hole was made in this container. After 3

; pH2O p

(1) P = 0.5 atmosphere (2) P = 2 atmosphere

hours the order of partial pressure in the container would be (1) PSO2  PCH 4  PH 2 (2) PH 2  PSO 2  PCH 4 (3) PCH 4  PSO2  PH 2 (4) PH 2  PCH 4  PSO 2

H 2O

pH 2 . pO 2

92. Kp for a reaction at 25ºC is 10 atm. The activation energy for forward and reverse reactions are 12 and 20 kJ, respectively. Heat of the reaction at 25ºC will be (1) 8 kJ (2) 32 kJ (3) –8 kJ (4) –32 kJ 93. For an equilibrium reaction, which of the following statement is not true. (1) If the reaction quotient of the reaction is greater than Keq, the reaction moves in the backward direction (2) If the reaction quodient of the reaction is lesser than Keq the reaction moves in the forward direction (3) If the reaction quotient of the reaction is equal to Keq the reaction is at equilibrium (4) There is no correlation between the reaction quotient and Keq in predicting the direction in which reaction proceeds. 94. Given the following reaction at equilibrium : N2(g) + 3H2(g) 2NH3(g) Some inert gas is added at constant pressure. In doing so, (1) More NH3 gas is produced

98. In vander Waal's equation

a    P  2   V  b   RT V   If the pressure is kept quite high then (1) PV = RT (2) PV > RT (3) PV < RT (4) None of these 99. Which is not true in case of an ideal gas ? (1) It can not be converted into a liquid (2) There is no interaction between the molecules (3) All the molecules of gas move with the same speed (4) At a given temperature PV is proportional to the amount of the gas 100. The temperature at which real gases obey the ideal gas laws over a wide range of temperature is called (1) critical temperature (2) Boyle temperature (3) inversion temperature (4) none of these

(2) Less NH3 gas is produced Rough Work

[11]

BOTANY & ZOOLOGY 101.Final CO2 acceptor in C4 and CAM plants is a .......... compound. (1) C5

(2) C3

(3) C2

(4) C4

(3) 6 (4) 2 109. Discovery of ‘Emerson effect’ has shown the existence of (1) Two distinct photochemical reactions (2) Light & dark reaction in photosynthesis (3) Photophosphorylation (4) Photorespiration 110. Quantum requirement for synthesis of 1 mol. of sucrose is (1) 12 (2) 48 (3) 96 (4) 112 + 111. The natural H acceptor in photosynthesis is (1) NADP + (2) Ferricyanide (3) Benzoquinone (4) Dichlorophenol indophenol (DCPIP) 112. Find the incorrect statements (a) The antenna molecules transfer energy to reaction centre through inductive resonance (b) The number of light quanta needed to release 1 molecule of O2 is 9 (c) 12 ATP and 18 NADPH + H+ are required for the production of a molecule of glucose in C4 plants (d) Diurnal acid cycle is CAM Cycle (1) a & d (2) b & d (3) b & c (4) c & d

102.Photosynthesis with involvement of PSII first appeared in (1) Flowering plants (2) Cyanobacteria (3) Photosynthetic bacteria (4) Green Algae 103.The skeleton of each pyrrole ring is made up of 5 atoms, these are (1) 3 carbon & 2 nitrogen (2) 2 carbon & 3 nitrogen (3) 5 carbon & 0 nitrogen (4) 4 carbon & 1 nitrogen 104.Chlorophyll has a tadepole like configuration with porphyrin & phytol. The phytol is (1) C20H50O6

(2) C20H39OH

(3) C55H72O5N4Mg (4) C55H70O6N4Mg 105.For formation of 12 ATP through CF0 – CF1 complex, how many hydrogen atoms are involved ? (1) 12

(2) 36

(3) 24

(4) 18

113. Which of the following enzyme converts glycolate into glyoxylate in C2 Cycle ?

106.For 6 turns of PCR cycle, there is utilization of ............. NADPH & there is net production of .............. phosphoglyceraldehyde (1) 36, 4

(2) 24, 2

(3) 12, 12

(4) 48, 2

(4) Glycine decarboxylase

(2) Q & PQ

(3) FeS and Cyt.f (4) RQ & FeS 115. According to the chemiosmosis hypothesis for photosynthesis, energy is used (1) To pump protons across a membrane (2) To activate the photosynthesis

–

(2) 4e

–

(3) 8e (4) 1e– 108.For regeneration of 6 Rubp from in Calvin Cycle, how many ATP’s are required ? (1) 3

(3) Transketolase

(1) PSI & Fd

107.How many e are required to reduce two molecules of CO2 ? (1) 2e

(2) Oxidase

114. Paraquat and diquat inhibit the e– transfer between the ................ and ............. in light reaction

–

–

(1) Catalase

(2) 4

Rough Work

[12]

(3) To create a high concentration of protons within the thylakoid lumen

121. Choose the respiratory substrate of floating respiration

(4) More than one option is correct 116. Select the incorrect statement w.r.t. C3 cycle

(1) Carbohydrate and protein (2) Carbohydrate and fat

(1) For one CO2 fixation three ATPs are required

(3) Fat & protein

(2) For regeneration of the CO2 acceptor molecule, RuBP is not crucial for the continuation of the cycle (3) The first stable product is PGA

(4) Stearic acid & anthocyanin 122. Use of which one of the following respiratory substrate will prevent the loss of 2ATP molecules in glycolysis ?

(4) Carboxylation is the most crucial step 117. Mark the incorrect option (w.r.t. factors promoting photorespiration)

(1) Glucose (2) Glucose, 6-phosphate

(1) High light intensity

(3) Fructose, 6-phosphate

(2) Low temperature

(4) Fructose, 1, 6 diphosphate 123. During the oxidation of R(COOH)2, the RQ value is

(3) High temperature (4) High O2 concentration 118. Consider (a)  ketoglytaric acid (b) Succinic acid

(3) c, e, a, b, d

(4) e, d, c, b, a

(3) 1

(4) Zero

(1) Glucose  Glucose, 6-P (2) -ketoglutaric acid  Succinyl CoA (3) Phosphoglyceraldehyde1, 3 diphosphoglyceric acid

Choose the correct order in order of their formation in Krebs cycle (2) c, e, a d, b

(2) <1

124. Which of the following is the first catabolic step of aerobic respiration ?

(c) Citric acid (d) Fumaric acid (e) Oxalosuccinic acid

(1) a, b, c, d, e

(1) >1

(4) Fructose 1, 6 diphosphate  Glyceraldehyde, 3 phosphate + DHAP 125. How many ATP are formed when two molecule of -KGA enters in TCA cycle ?

119. Krebs cycle is also known as tricarboxyllic acid cycle. Its first product is (1) Oxalosuccinic acid

(1) 22 ATP

(2) 18 ATP

(3) 24 ATP

(4) 30 ATP

126. Which is correct for 16C fatty acid ?

(2) Cis-aconitic acid

(1) It undergoes -oxidation in plastid and yields 129 yield

(3) Isocitric acid (4) Citric acid

(2) It undergoes -oxidation in plastid and yields 131 yield

120. If a molecule of glucose is oxidised into pyruvic acid in aerobic condition, number of CO2 molecules evolve in the process is (1) Six

(2) Three

(3) Two

(4) Zero

(3) It undergoes -oxidation in mitochondria or glyoxsysome and yield 131 ATP (4) It undergoes -oxidation in mitochondria or glyoxysome & yields 229 ATP

Rough Work

[13]

134. Identify the correct statement

127. In ETS, the number of ATP glyoxysome synthesized depends on (1) O2

(2) Substrate

(3) Electron donar

(4) Proton gradient

(a) During glycolysis, glucose is broken down into CO2 & H2O (b) The shuttle system in which loss of one ATP occurs for each cytosolic NADH + H+, does not occur in prokaryotes

128.The principle of limiting factors was proposed by (1) Liebig

(2) Blackman

(3) Hill

(4) Arnon

(c) In gateway reaction of aerobic respiration, one pyruvic acid produces one molecule of CO2

129. Calvin and Benson fed Scenedesmus with radioactive 14C in carbon dioxide & found that the radioactivity appeared in PGA just after (1) 3 hour

(2) 3 minute

(3) 3 second

(4) 55 second

(d) The step of glycolysis involving hexokinase is reversible (1) a, d

(2) a, b

(3) b, c

(4) c, d

135. Kalanchoe, Sedum and Pineapple (1) Lack Skotoactive Opening Stomata

130. During photosynthesis, the oxygen in glucose comes from

(2) Posses C4 cycle only

(1) Water

(2) CO2

(3) Show acidification during day

(3) O2 of the air

(4) Both from water & CO2

(4) Lack Kranz anatomy 136. Which of the following intermediate of Krebs cycle acts of precursor of cytochrome ?

131. Choose incorrect for phosphofructokinase (1) It is rate limiting enzyme of EMP

(1) -ketoglutaric

(2) Oxaloacetic acid

(2) Pyrophosphate dependent PFK has been discovered by kruger (3) The enzyme is inhibited by high ATP and citrate ions

(3) Acetyl CoA

(4) Succinyl CoA

137. Warburg Lipman - Dickens pathway (1) Is found in eukaryotes as well as prokaryotes (2) Is not possible in chloroplast

(4) It forms fructose, 6-phosphate from fructose 1; 6 diphosphate

(3) Requires glucose, 6-phosphate dehydrogenase (4) Is also called photorespiration

132. When 5 molecules of 5C-compound enter directly as substrate into the kreb’s cycle, then how many ATP are formed through electron transport chain in presence of oxygen ?

138. How many ATP molecules are obtained as net gain if two molecules of DHAP are oxidised completely in a bacterial cell ?

(1) 60

(2) 40

(1) 80

(2) 76

(3) 45

(4) 75

(3) 40

(4) 38

139. Primary electron acceptor of PSI is

133. Find the correct match (1) Hatch & Slack pathway– In monocot plants only (2) Phosphorescence– Delayed reradiation of absorbed energy

(2) Plastocyanin

(3) FeS. protein

(4) Plastoquonine

140. Molecular formula of chlorphyll ‘a’ is (1) C55H74O6N4Mg (2) C55H72O5N4Mg

(3) Pyruvate phosphate – Insensitive to temperature dikinase

(1) Pheophytin

(3) C55H70O6N4Mg (4) C40H56O

modulation

(4) Flashing light experiment – Ruben & Kamen Rough Work

[14]

141. How many carbon is involved in the regeneration of Rubp during RPP-Pathway ? (1) 32

151.“Lysosomes” were discovered by (1) Haekel (2) De Duve (3) De Vries (4) Purkinje 152.Lysosomes are known as suicidal bags because they contain (1) Catalytic enzymes (2) Hydrolytic enzymes (3) Parasitic on nucleus (4) Proteolytic enzymes 153.The smaller sub-unit in 80 S ribosome contains (1) 18 S r-RNA (2) 16 S r-RNA (3) 28 S r-RNA (4) 23 S r-RNA 154.Polyribosomes are aggregatrion of (1) Ribosomes and rRNA (2) Only rRNA (3) Peroxisomes (4) 6-7 ribosomes held together on a string of mRNA 155.Which of the following organelle has Tonoplast (1) Vacuoles (2) ER (3) Mitochondria (4) Sphaerosomes 156.Extra nuclear inheritance is a consequence of presence of genes in (1) Mitochondria and chloroplasts (2) Endoplasmic reticulum and chloroplasts (3) Ribosomes and chloroplasts (4) Lysosomes and ribosomes 157.Centrioles and centrosomes are present in cells of (a) Bacteria (b) Cyanobacteria (c) Green plants (d) Animals (1) a and d only (2) d only (3) b,c and d (4) c and d only 158.Cells which are secretory in function have abundant (1) Lysosomes (2) E.R. (3) Dictyosomes (4) Glyoxysomes 159.Tubulin protein occurs in (1) Rough endoplasmic reticulum (2) Microtubules (3) Thylakoids (4) Digestive enzymes 160.The role of nucleus in regulating the morphology of plant was discovered in (1) Maize (2) Garden pea (3) Neurospora (4) Acetabularia

(2) 36

(3) 30 (4) 6 142. At a very heigh oxygen content, the rate of photosynthesis begins to decline in all plants. This phenomenon is called (1) Pasteur effect (2) Warburg effect (3) Gibbs effect (4) Kutusky effect 143. How many ATP will formed from the substrate oxidate of 3 molecules of Acetyle CoA in mitochondrial cycle ? (1) 24 (2) 36 (3) 2 (4) 3 144. Who is called father of ATP cycle ? (1) Lohmann (2) Lipmann (3) Blackmann (4) White 145. Who coined the term ‘Fermentation’ ? (1) Kostytchev (2) Cruickshank (3) Pasteur (4) Michel Peter 146. Reduction in consumption of respiratory substrate when the mode of respiration is changed from anaerobic to aerobic is called (1) Pasteur effect (2) Emerson effect (3) Kutusky effect (4) Warburg effect 147. Ultimate electron acceptor of respiration is (1) Cytochromes (2) Oxygen (3) Hydrogen (4) Glucose 148. The end product of oxidative phosphorylation is (1) NADH (2) Oxygen (3) ATP (4) ATP + H2O 149. In aerobic respiration, one gram mole of glucose yields (1) 4ATP (2) 24ATP (3) 38 ATP

(4) 40ATP

150. Which of the following intermediate of EMPPathway act as precursor of Shikkimic acid ? (1) Pyruvic acid (2) PGA (3) Fructose, 6-Phosphate (4) All except Rough Work

[15]

172.Singer and Nicholson’s model of plasma membrane differs from Robertson’s model in the (1) Number of lipid layers (2) Arrangement of lipid layers (3) Arrangement of proteins (4) Absence of protein in Singer and Nicholson’s model 173.Secretory and membrane proteins are processed in (1) Peroxisomes (2) Glyoxysomes (3) Golgi complex (4) Sphaerosomes 174.Zone of exclusion is associated with (1) Golgi complex (2) Endoplasmic reticulum (3) Mitochondria (4) Chloroplast 175.‘Micrographia’ is a book authored by (1) Leeuwenhoek (2) Jan Swammer Dan (3) Robert Hooke (4) Rudolf Virchow 176.The minute protoplasmic connections between cells are called (1) Chiasmata (2) Plasmodesmata (3) Tractile fibres (4) Ultra-cellular strands 177.The principal protein of cilia and flagella is (1) Tubulin (2) Albumin (3) Globulin (4) Gliadin 178.Protoplasm is a (1) True solution (2) Suspension (3) Emulsion (4) Polyphasic colloidal system 179.Mitochondria are the site for (1) Photophosphorylation (2) Oxidative phosphorylation (3) Transpiration (4) Carboxylation 180.Which one of the following pairs is correctly matched? (1) Microsomes Participate in the process of photosynthesis (2) Lysosomes Involved in synthesizing amino acids (3) ER Plays role in the formation of a new nuclear membrane during cell division (4) Centrosomes Provide enzymes required in the digestive process 181.Ribosome, similar to those of bacteria, are found in (1) Plant nuclei (2) Pancreatic mitochondria

161.Nucleus is absent in (1) Sieve tubes (2) Companion cells (3) Chlorenchyma (4) All the above 162.Nucleolus in eukaryotic cells is (1) Visible in metaphase (2) The site for synthesis of RNA polymerase (3) Bounded by a membrane (4) The site of packaging of rRNAs with ribosomal proteins 163.F1 particles/oxysome/elementary particles are present in (1) Endoplasmic reticulum (2) Chloroplast (3) Mitochondria (4) Golgi complex 164.Mitochondria are the store house or power house of (1) Fats (2) ATP (3) Glucose (4) Glycogen 165.The term “filia” and “bioplast” for ‘mitochondrion’ given by ? (1) Kolliker and C benda (2) Flemming and Benda (3) Flemming and Altmann (4) Altman and C Benda 166.Protoplasm was regarded as the “physical basis of life” by (1) Huxley (2) Corti (3) Hardy (4) Malphighi 167.Amyloplast is concerned with (1) Absorption of water (2) Absorption of light (3) Storage of fat (4) Storage of starch 168.“Quantasomes” were discovered by (1) Garner and Allard (2) Muller and Morgan (3) Lederberg and Tatum (4) Park and Biggins 169.Group of thylakoids is called (1) Granum (2) Stroma (3) ER (4) F1 particles 170.The name ‘protoplasm’ was given by (1) Purkinje (2) Hooke (3) A.K. Sharma (4) Schwann 171.SER produces (1) Protein (2) Carbohydrate (3) Lipid (4) Nucleic acid Rough Work

[16]

(3) Liver endoplasmic reticulum (4) Cardiac muscle cytoplasm 182.Which of the following is responsible for mechanical support, enzyme transport and protein synthesis ? (1) Dictyosomes (2) Cell membrane (3) Mitochondria (4) Endoplasmic reticulum 183.Desmosomes are found (1) Between adjacent plant cells (2) Between adjacent epithelial cells (3) Between adjacent adepose cells (4) All of these 184.The layer joining the primary walls of the two adjacent cells is known as (1) Plasmodesmata (2) Middle lamella (3) Periderm (4) Casparian strip 185.Which of the following is the exception of cell theory? (a) Bacteria (b) Fungi (c) Lichen (d) Virus (1) a and d only (2) d only (3) b,c and d (4) c and d only 186.Which is not an intracellular compartment in the cell? (1) Nucleus (2) Mitochondria (3) Chloroplast (4) Centriole 187.Rigidity of cell wall is due to (1) Cellulose (2) Pectin (3) Lignin (4) Suberin 188.Integral proteins in Singer and Nicolson’s model of cell membrane are (1) Tightly attached to phospholipids and cannot be easily separated (2) Tightly attached to phospholipids and can be easily separated (3) Superficially present but cannot be separated easily (4) Deeply situated and can be easily separated 189.Bacterial wall contains (1) Cellulose (2) Peptidoglycan (3) Murein (4) Both (2) and (3) 190.Nucleolus is formed of (1) DNA and RNA (2) DNA, RNA and proteins (3) RNA and proteins (4) RNA 191.Proteinoplasts are also called as (1) Aleuroplasts (2) Elaioplasts (3) Leucoplasts (4) Amyloplasts

192.No cell is without (1) Chloroplast (2) Mitochondria (3) Ribosomes (4) Nucleus. 193.Histones are absent in (1) Fungi (2) Protista (3) Metazoa (4) Monera 194.The genetic material in mycoplasma is (1) Single Stranded DNA (2) Double stranded RNA (3) Single Stranded RNA (4) Double Stranded DNA 195.The bacterium chromosome is (1) a single stranded DNA with Non histones (2) A single stranded DNA with histones (3) A double stranded DNA with Non histones (4) A double strunded DNA with histones. 196.The contriole has at its periphery (1) Nine doublets fibres (2) Nine singlets fibres (3) Nine doublets and two singlets (4) Nine triplet fibres. 197.Succinate dehydrogenase and cytochrome oxidase are located in mitochondria in/ on (1) Outer membrane (2) Matrix (3) Perimitochondrial space (4) Inner membrane. 198.Golgi complex are originated from (1) Membranes of rough ER (2) Membranes of Smooth ER (3) Mitochondria (4) Ribosomes 199.One quantasome cantains (1) 350 chlorophyll molecules (2) 133 chlorophyll molecules (3) 230 chlorophyll molecules (4) 100 chlorophyll molecules 200.The sedimentation coefficient of mitochondrial ribosomes of higher plants is (1) 70 s (2) 80 s (3) 55 s (4) 40 s

Rough Work

[17]

ANSWERS FOR CLASS XI - MODULE TEST (MEDICAL 2011)

(03/12/2011)

S

-1

TESTET CODE - 1 Physics 1. 6. 11. 16. 21. 26. 31. 36. 41. 46.

(1) (4) (1) (3) (4) (3) (3) (4) (2) (3)

2. 7. 12. 17. 22. 27. 32. 37. 42. 47.

(4) (1) (3) (4) (4) (1) (4) (2) (2) (2)

3. 8. 13. 18. 23. 28. 33. 38. 43. 48.

(2) (1) (4) (1) (4) (3) (3) (2) (1) (3)

4. 9. 14. 19. 24. 29. 34. 39. 44. 49.

(2) (1) (2) (3) (4) (2) (4) (1) (1) (2)

5. 10. 15. 20. 25. 30. 35. 40. 45. 50.

(2) (3) (3) (1) (4) (4) (3) (1) (3) (3)

54. 59. 64. 69. 74. 79. 84. 89. 94. 99.

(2) (2) (4) (1) (4) (2) (2) (2) (2) (3)

55. 60. 65. 70. 75. 80. 85. 90. 95. 100.

(3) (2) (1) (4) (4) (2) (4) (3) (1) (2)

104. 109. 114. 119. 124. 129. 134. 139. 144. 149.

(2) (1) (1) (4) (4) (3) (3) (3) (2) (4)

105. 110. 115. 120. 125. 130. 135. 140. 145. 150.

(2) (3) (4) (4) (2) (2) (4) (2) (2) (1)

154 159 164 169 174 179 184 189 194 199

(4) (2) (2) (1) (1) (2) (2) (4) (4) (3)

155 160 165 170 175 180 185 190 195 200

(1) (4) (3) (1) (3) (3) (2) (2) (3) (1)

Chemistry 51. 56. 61. 66. 71. 76. 81. 86. 91. 96.

(1) (2) (2) (3) (3) (3) (2) (4) (1) (2)

52. 57. 62. 67. 72. 77. 82. 87. 92. 97.

(4) (2) (1) (1) (3) (2) (2) (2) (3) (1)

53. 58. 63. 68. 73. 78. 83. 88. 93. 98.

(1) (4) (4) (3) (4) (4) (3) (4) (4) (2) Botany

101. 106. 111. 116. 121. 126. 131. 136. 141. 146.

(1) (3) (1) (2) (2) (3) (4) (4) (3) (1)

102. 107. 112. 117. 122. 127. 132. 137. 142. 147.

(2) (2) (3) (2) (4) (3) (2) (1) (2) (2)

103. 108. 113. 118. 123. 128. 133. 138. 143. 148.

(4) (3) (2) (3) (2) (2) (2) (3) (4) (4) Zoology

151 156 161 166 171 176 181 186 191 196

(2) (1) (1) (1) (3) (2) (2) (4) (1) (4)

152 157 162 167 172 177 182 187 192 197

(2) (2) (4) (4) (3) (1) (4) (3) (3) (4)

153 158 163 168 173 178 183 188 193 198

(1) (2) (3) (4) (3) (4) (2) (1) (4) (2)

SOLUTIONS FOR CLASS XI - MODULE TEST (MEDICAL 2011)

(03/12/2011)

S

-1

TESTET CODE - 1 

m

1.

(1)

v

2 m/s

p

Vvm – 2 = v = 2.2

Vtop most point 2. 3. 4.

(4) (2) (2)

= = =

Vc.m. + Rw 2.2 + .2 2.4 m/s

Factual Factual at the highest point the horizontal momentum should conserved.

M  200 Gs 60 

M v 3

1 200   3  v 2 v = 300 m/s in horizontal direction 5.

(3)

I  I am  Mh 2 =

6.

(4)

1 R2 1 MR 2  M  MR 2 4 4 2

I  F .R.

1 2 L ML  mg . 3 2  7.

(1)

3g 2L

O    t  t 

 

 d    (  t )dt   t 

8.

(1)

I

t 2 2 2  2    2   2

1 MR 2 2

g sin  g sin 30 2   I 1 3 1 1  MR 2 2 Mg – T = M ...(i) T/R = I ...(ii) a = R ...(iii) on solving we get a

9.

(1)

10. (3)

a

g (1  I / MR 2 )

a

2g 3

10  2 100 (i)

11. (1)

I1w1 = I2w2 I × 20 = I2.10  I2 = 2I

12. (3)

v

2 gh (1  I / MR 2 )

for solid cylinder I 

4 gh 3

v 13. (4)

1 MR 2 2

M 1  R 2t. M 2    4R 

2

t .  4M 1 4

1 1 M 2 (UR )2  4M 1  16 R 2 2 2   1 1 Ix 2 M 1 ( R) M1 R2 2 2 Iy

14. (2) 15. (3) 16. 17. 18. 19. 20. 21.

(3) (4) (1) (3) (1) (4)

22. (4)

Factual

1 mgh  mv 2  v  2 gh 2 They will meet at a centre of mass Facutal Factual Factual If masses are same velocity after elastic collision will interchange For elastic collision e = 1. M  eL, 2R  L, R  I

23. (4)

L 2

3 3 L2 3eL3 M .R 2   eL  2  2 2 2 4 8

K

1 L 2

25. (4)

50  1 1  m / min  d  6.25 400 8 Dispt. of Ma = 50 – 6.25 = 43.75 Factual

26. (3)

n

24. (4)

v

240 rev / sec 60

  2  4  2 rad / s

0  8  .2    4rad / s 2 27. (1)

1 1 I   16   .5kgm 2 2 16 d d  .  . dt dt I  =

5 4   4  2 .watt 10 8

28. (3)

29. (2)

L2  L  2 IK 2I L increase by 80%  m  m2  a 1 g  m1  m2  K

 m1  m2  m1a  m2 a  m1  m2  m1  m2    g  g m1  m2  m1  m2  m1  m2   m1  m2  Factual am 

30. (4) 31. (3)

4 [Perpendicular distance] 2 L = r.p. r

 32. (4)

4 100  8 2   3.2 1000 2

  2t 2  5t  3   4t  5

  4 rad / s 2 2 2 625 I    20  102   102 5 1000   I   4  102  .04

33. (3) 34. (4)

1 1 I1  I , I 2  I 2 2 I3 

35. (3)

1 1 I , and I 4  I (by perpenndicualr axis theorem) 2 2

h1  e 2 h 2

=  0.8   1000  640 m

36. (4)

 m  m2  v  2m2v2 v1  1  m1  m2 

v

 m1   1 v  2v2  m  v1   2   v  2u  m1   1   m2 

37. (2)

Linear momentu = Area under F–t graph = 0

38. (2)

vam

39. (1) 40. (1)

Factual (no external force in applied) mg sin 60  T  ma T – mgsin30° = ma

m1r1  m2 r2 m1  m2

 3 1 mg   2ma  2     3 1 a    g  4 

----(i) ----(ii)

u

   ma  ma2 ax  1 mm   a1  a2 a 2  a 3 1    g  a2   2 2 2 4 2 41. (2) L

 0 x 2 .dx

42. (2)

rcm

 dm.r     dm   xdx 0

L



2L 3

0

0

43. (1) 44. (1)

Conceptual at explosion M M v cos   v1 2 2 3 M mv cos   v1 2 2 1 v  3v cos  M .v cos   

45. (3)

P  F t  2(m1  m2 ) g t0

46. (3)

I  m1r12  m2 r22  m3 r32  nxo  mxl 2 

ml 2 4

5  ml 2 4

47. (2)

Moment of inertia remain same.

48. (3)

I disc 

49. (2) 50. (3) 51. (1)

Factual Factual PV = nRT P  T (at N & V are constant)

5 2 MR 2  MK dise 4 3 2 I ring  MR 2  MK mg 2 5 2 R K disc 4   5: 6 K ring 3 2 R 2

v T

P M

52. (4)

r

53. (1)

v T

v1 T  1 v2 T2

0.3 300 1 1    v2 1200 4 2

54. (2)

v2 = 0.6 m/sec At high temperature and low pressure inter molecular force becomes negligible.

55. (3)

B A VA = 100 cm3 VB PA = P PT = 0.4 P PAV = PTVT = nART P × 100 = 0.4 PVT

VB = VT – VA VB = 250 – 100 VB = 150 cm3

56. (2)

1000  250 cm3 4 For ideal gas

57. (2)

3 RT 2 KE of gas molecule depends only on temperature.

VT 

KE 

58. (4)

rH 2 rO2 nH 2 nO2



nH 2 t

4



M O2 t 32   4 nO2 M H2 2

WH 2 M H2



M O2 WO2

4

2 32   4  WO2  8 gm 2 WO2

59. (2)

a atm litre 2 mole 2   atm litre mole 1 b litre mole 1

60. (2) 61. (2) 62. (1)

For ideal gas, compressibility factor is 1. Factual Factual

63. (4)

H   H f ( P )   H f ( R )

64. (4)

= 819  3(393)   2(34)  3( 110) = –360 + 262 = – 98 kJ For isothermal process U = 0 & u = 0

65. (1)

H   H C ( R )  H C ( P )

H   337   ( 68.4)  ( 373)

66. (3) 67. (1)

H  32.4 Kcal Heat of combustion is always exothermic. by substracting 1/2 of equation (ii) from equation (i), we get C(gr) + 1/2 O2(g)  CO2(g)

y  y So that H   x     z  x  2  2 H  ( y  2 x) / 2 68. (3)

G  G  RT  n Q

69. 70. 71. 72.

(1) (4) (3) (3)

G  0, G  2.303 RT log K Factual Internal energy is a state function Factual U  q  w  0 q=–w

w   RT  n 73. 74. 75. 76. 77.

(4) (4) (4) (3) (2)

V4 V3

78. (4) 79. (2)

Factual Definition Definition V  0 in expansion process Higher ionization enthalpy means less ionization, so that lesser Ka (ionization constant) and higher PKa value. In adiabatic expansion takes place at the cost of internal energy. Factual

80. (2)

Kp 

42  8 atm 2 1/ 2

81. (2) 82. (2) 83. (3) 84. (2) 85. (4)

1  1  K    7  49  The equilibrium constant does not depend on catalyst Q = 108 Q > KC, To attain equilibrium reaction will move right to left. Kp = Kc, ng = 0 By dissolving salt vapour presure decrease. 1

2

86. (4)

 1  x   Kc     100  1  x  

1 x  10 1 x

87. (2)

1 + x = 10 – 10 x 11x = 9 x = 9/11 = .818 So that conc of A & B 1– .818 = .182 M Conc. C & D 1 + .818 = 1.818 M K3 = K1 × K2 3

 /  /   1

3

2

2



33 27  24 16

88. (4)

Kc

89. (2)

K p  PCO  PH 2 O  PC2O  .16 PCO  PH 2 O

1

2

2

2



PCO2  .4atm  PH 2 O

90. 91. 92. 93.

(3) (1) (3) (4)

Ptotal  .4  .4  0.8 atm Factual Factual H = Ef – Er = 12 – 20 = – 8 kJ Factual

2



94. (2) 95. (1)

Factual As temperature increase rate of reaction increase, so that reaction in endothermic in nature

97. (1)

PM RT Heavier gas diffuse less.

98. (2)

At high pressure,

96. (2)

99. 100. 101. 102.

(3) (2) (1) (2)

103. (4) 104. (2) 105. (2) 106. (3) 107. 108. 109. 110.

(2) (3) (1) (3)

111. (1) 112. (3) 113. (2) 114. 115. 116. 117. 118. 119. 120. 121. 122. 123.

(1) (4) (2) (2) (3) (4) (4) (2) (4) (2)

124. (4) 125. (2) 126. (3) 127. 128. 129. 130. 131. 132.

(3) (2) (3) (2) (4) (2)

133. 134. 135. 136.

(2) (3) (4) (4)

d

a will be negligible to P.. V2 Average speed is same Boyle temperature Factual Factual

C Structural formula of a pyrrole ring is C

C C i.e. 4C + 1N .

N Factual 3H+ are involved for the formation of 1ATP through CF0 – CF1 complex through electron transports, system in chloroplast. So for 12 ATP, 36H+ are required. In PCR (i.e. C3 cycle) 12 NADPH + H+ is utilised & 2 mol. of PGAL i.e 6 carbon compound (Hexose) is produced. Factual 1 ATP is required for the regeneration of 1 mol of Rubp. Factual Sucrose is a disaccharide made of glucose & fructose. For 1 mol. of hexose formation i.e., 6CO2 fixation or 6O2 evolution, 6 × 8 = 48 quanta is required. So for two hexose, the quantum requirement is 96. Factual Factual C2 cycle is also called as photorespiration. Conversion of glycolate into glyoxalate in C2 cycle occurs in Peroxisome in the presence of oxidase. Factual Factual Factual Factual Factual (refer Kerb’s cycle) Citric acid (6C-compound or 1st TCA in Kreb’s cycle) is the first product. During glycolysis, CO2 is not evolved. Factual During formative stage of glycolysis, 2ATP is consumed to form fructose 1, 6 diphosphate from glycose. In C20H39COOH, O2 content is less so it needs more O2 molecules than CO2 mol, for complete oxidation. As a result, RQ becomes less than one. GAP (= Glyceraldehyde, 3-phosphate) or PGAL is the first biological oxidative compound for aerobic respiration that forms after cleavage of fructose 1, 6 diphosphate in the presence of aldolase. 9 ATP forms by 1 molecule of -KGA in TCA-cycle. Through -oxidation of 16C fatty acid 131ATP yeilds in mitochondria but net ATP production is (131–2) 129. Factual Factual Factual Factual Factual 1mol. of 5C-compound forms 8 ATP in Kreb’s cycle through ETC. (2 mol. NADH + H+ yields 6 ATP & 1 mol. of FADH + H+ yields 2ATP) Factual Factual Factual Factual

137. (1) 138. (3) 139. 140. 141. 142. 143. 144. 145. 146. 147. 148. 149. 150. 151 152 153 154 155 156 157 158 159 160 161 162

(3) (2) (3) (2) (4) (2) (2) (1) (2) (4) (4) (1) (2) (2) (1) (4) (1) (1) (2) (2) (2) (4) (1) (4)

163 (3) 164 165 166 167 168 169 170 171 172

(2) (3) (1) (4) (4) (1) (1) (3) (3)

173 (3) 174 (1) 175 (3) 176 (2) 177 178 179 180

(1) (4) (2) (3)

181 182 183 184

(2) (4) (2) (2)

Factual 1 molecule of DHAP yield 20 ATP through complex oxidation in a bacterial cell. ETC completes on mesosome (Peripheral) Factual Factual RPP-pathway stands for Reductive pentose phosphate pathway i.e., C3 Cycle. Factual 1 mol. of acetyle CoA yields 1 ATP (= 1 GTP) through substrate level phosphorylation or substrate oxidation. Factual Factual Factual Factual Factual Factual Factual “Lysosomes” also called succidal bags were discovered by De Duve. Purkinje coined the term protoplasm. Lysosomes contains hydrolytic enzymes, which digest the cell content hence are known as suicidal bags The smaller sub-unit in 80 S ribosome is 40s which have proteins and 18 S r-RNA 6-7 ribosomes held together on a string of mRNA Tonoplast the thinnest biomembrane is the covering of vacuoles Mitochondria and chloroplast contains DNA hence exhibit extra nuclear inheritance Factual Cells having excess of gologibodies and E.R. are mostly secretory in nature Microtubules are madeup of Tubulin protein Factual Factual (beside sieve tubes nucleus is also absent in mammalian RBC) Nucleolus in eukaryotic cells are membraneless and are the site of packaging of rRNAs with ribosomal proteins F1 particles/oxysome/elementary particles present in mitochondria are tenis racket shape structure and are associated with ATP synthesis Factual Factual Protoplasm was regarded as the “physical basis of life” by Huxley. A.Corti discovered protoplasm Amyloplast, a type of leucoplast is concerned with storage of starch Factual Factual, Stroma is the matrix present in cholorplast in which granum and thylakoids are present Purkinje coined the term protoplasm. Proteins are synthesied by RER In Singer and Nicholson’s model of plasma membrane the proteins are present as an iceberg in the sea of lipid where as in Robertson’s model the proteins are present on outer and inner surface of lipid bilayer Cells having excess of gologibodies and E.R. are mostly secretory in nature. G.B. are the processing centre of the cell Zone of exclusion is the clear region of hyaloplasm without cell organils and is present surrounding G.B. called golgisphere and centriole called centrosphere Factual Plasmodesmata are the minute protoplasmic connections between plant cells and are associated with exchange of substances between adjacent cells Cilia and flagella are madeup of microtubles. Microtubules are madeup of tubulin protein Protoplasm is a Polyphasic crystallo-colloidal substance. Mitochondria are the site for oxidative phosphorylation and are associated with ATP synthesis. Microsomes-Participate in protein synthesis, Lysosomes-Involved in synthesis of hydrolytic emzymes, Centrosomes-participate in cell division Bacteria has 70S ribosomes, which are also found in mitochondria and chloroplast of eukaryotic cells Factual Desmosomes also called macula adherance are found between adjacent epithelial cells in animals Middle lamella is madeup of calcium pectate which act as simenting substance between adjacent cells in plants

185 186 187 188

(2) (4) (3) (1)

189 190 191 192 193 194 195 196 197 198 199 200

(4) (2) (1) (3) (4) (4) (3) (4) (4) (2) (3) (1)

Virus are non-living Centriole is a membraneless structure Factual Integral proteins in Singer and Nicolson’s model of cell membrane are tightly attached to phospholipids and cannot be easily separated Bacterial wall contains both peptidoglycan and murein Factual Proteinoplasts also called aleuroplasts are a type of leucoplast which stores proteins, aminoacids etc Ribosomes are found in all cells Factual Factual The bacterium chromosome is a double stranded DNA with Non-histone proteins The microtubuler arrangement of centriole is 9 + 0 the outer 9 microtubules are triplets Factual Golgi complex are originated from membranes of Smooth ER Factual Factual