S.No. Paper Page No. 1. AIPMT Prelims 2011 2 2. AIPMT Mains

105 Pages·2016·8.35 MB·English

DS CLASSES SOLVED PAPER
Index

S.No. Paper Page No.
1. AIPMT Prelims 2011 2
2. AIPMT Mains – 2011 11
3. AIPMT Prelims – 2012 18
4. AIPMT Mains – 2012 27
5. NEET – 2013 35
6. AIPMT – 2014 44
7. AIPMT – 2015 53
8. RE- AIPMT – 2015 64
Solution
1. AIPMT Prelims 2011 72
2. AIPMT Mains – 2011 74
3. AIPMT Prelims – 2012 77
4. AIPMT Mains – 2012 81
5. NEET – 2013 82
6. AIPMT – 2014 87
7. AIPMT – 2015 92
8. RE - AIPMT – 2015 98

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AIPMT Prelims 2011

1. The dimensions of((cid:2020) (cid:2013) )(cid:2879)(cid:2869)/(cid:2870)are
(cid:2868) (cid:2868)
(a) (cid:4674)(cid:1838)(cid:3117)(cid:3118)(cid:1846)(cid:3117)(cid:3118)(cid:4675) (b) (cid:4674)(cid:1838)(cid:3117)(cid:3118)(cid:1846)(cid:2879)(cid:3117)(cid:3118)(cid:4675)
(c) [(cid:1838)(cid:2879)(cid:2869)(cid:1846)] (d) [(cid:1838)(cid:1846)(cid:2879)(cid:2869)]

Power should be -1/2

2. The moment of inertia of a thin uniform rod of mass M and (a) 20 m (b) 40 m
length L about an axis passing through its midpoint and (c) 50 m (d) 60 m
perpendicular to its length is (cid:1835)(cid:2868). Its moment of inertia about an 14. Force F on a particle moving in a straight line varies with
axis passing through one of its ends and perpendicular to its distance d as shown in the figure. The work done on the
length is particle during its displacement of 12 m is
(a) (cid:1835) +(cid:1839)(cid:1838)(cid:2870) (b) (cid:1835) +(cid:3014)(cid:3013)(cid:3118)
(cid:2868) (cid:2868) (cid:2870)
(c) (cid:1835) +(cid:3014)(cid:3013)(cid:3118) (d) (cid:1835) +2(cid:1839)(cid:1838)(cid:2870)
(cid:2868) (cid:2872) (cid:2868)
3. A boy standing at the top of a tower of 20 m height drops a
stone. Assuming(cid:1859)=10(cid:1865)(cid:1871)(cid:2879)(cid:2870)the velocity with which it hits the
(a) 13 J (b) 18 J
ground is
(c) 21 J (d) 26 J
(a) 5.0 m/s (b) 10.0 m/s
15. A charge Q is enclosed by a Gaussian spherical surface of
(c) 20.0 m/s (d) 40.0 m/s
radius R. If the radius is doubled, then the outward electric flux
4. A person of mass 60 kg is inside a lift of mass 940 kg and
will
presses the button one control panel. The lift starts moving
upwards with an acceleration 1.0 m/s2. If g=10ms–2, the tension (a) Be doubled (b) Increase four times
(c) Be reduced to half (d) Remain the same
in the supporting cable is
16. Four electric charges +q, +q, –q and –q are placed at the
(a) 1200 N (b) 8600 N
corners of a square of side 2L (see figure). The electric
(c) 9680 N (d) 11000 N
potential at point A, midway between the two charges +q and
5. A body projected vertically from the earth reaches a height
+q, is
equal to earth's radius before returning to the earth. The power
exerted by the gravitational force is greatest
(a) At the instant just after the body is projected
(b) At the highest position of the body
(c) At the instant just before the body hits the earth
(d) It remains constant all through
6. The instantaneous angular position of a point on a rotating
wheel is given by the equation (cid:2016)((cid:1872)) = 2(cid:1872)(cid:2871) – 6(cid:1872)(cid:2870). The torque (a) Zero (b) (cid:2869) (cid:2870)(cid:3044)(cid:3435)1+√5(cid:3439)
on the wheel becomes zero at (cid:2872)(cid:3095)(cid:3084)(cid:3116) (cid:3013)
(cid:2869) (cid:2870)(cid:3044) (cid:2869) (cid:2869) (cid:2870)(cid:3044) (cid:2869)
(a) t = 2 s (b) t = 1 s (c) (cid:4672)1+ (cid:4673) (d) (cid:4672)1− (cid:4673)
(c) t = 0.2 s (d) t = 0.25 s 17. A pa(cid:2872)ra(cid:3095)(cid:3084)ll(cid:3116)el(cid:3013) plate c√o(cid:2873)ndenser has a(cid:2872) (cid:3095)u(cid:3084)n(cid:3116)if(cid:3013)orm ele√c(cid:2873)tric field E (V/m)
7. Particle moves in a circle of radius 5 cm with constant speed in the space between the plates. If the distance between the
and time period 0.2(cid:2024)(cid:1871). The acceleration of the particle is plates is d (m) and area of each plate is A (m2) the energy
(a) 5 m/s2 (b) 15 m/s2 (joules) stored in the condenser is
(c) 25 m/s2 (d) 36 m/s2 (a) (cid:2869)(cid:2013) (cid:1831)(cid:2870)(cid:1827)(cid:1856) (b) (cid:3006)(cid:3118)(cid:3002)(cid:3031)
8. A body of mass M hits normally a rigid wall with velocity V and (cid:2870) (cid:2868) (cid:3084)(cid:3116)
bounces back with the same velocity. The impulse experienced (c) (cid:2869)(cid:2013) (cid:1831)(cid:2870) (d) (cid:2013) (cid:1831)(cid:1827)(cid:1856)
by the body is (cid:2870) (cid:2868) (cid:2868)
18. If power dissipated in the 9Ωresistor in the circuit shown is 36
(a) Zero (b) MV
Watt, the potential difference across the2 Ωresistor is
(c) 1.5 MV (d) 2 MV
9. A planet moving along an elliptical orbit is closest to the sun at
a distance(cid:1870)and farthest away at a distance of (cid:1870) .If (cid:1874) and
(cid:2869) (cid:2870) (cid:2869)
(cid:1874) are the linear velocities at these points respectively. Then the
(cid:2870)
ratio (cid:3049)(cid:3117) is.
(cid:3049)(cid:3118)
(a) (cid:3045)(cid:3117) (b) (cid:4672)(cid:3045)(cid:3117)(cid:4673)(cid:2870) (a) 2 Volt (b) 4 Volt
(cid:3045)(cid:3118) (cid:3045)(cid:3118) (c) 8 Volt (d) 10 Volt
(c) (cid:3045)(cid:3118) (d) (cid:4672)(cid:3045)(cid:3118)(cid:4673)(cid:2870) 19. A current of 2 A flows through a 2 Ω resistor when connected
(cid:3045)(cid:3117) (cid:3045)(cid:3117) across a battery the same battery supplies a current of 0.5 A
10. A radioactive nucleus of mass (cid:1839) emits a photon of frequency (cid:1874)
when connected across a 9 Ω resistor. The internal resistance
and the nucleus recoils. The recoil energy will be
(a) ℎ(cid:1874) (b) (cid:1839)(cid:1855)(cid:2870)ℎ(cid:1874) of the battery is
(cid:3035)(cid:3118)(cid:3049)(cid:3118) (a) 1 Ω (b) 0.5 Ω
(c) (d) Zero. (cid:2869) (cid:2869)
(cid:2870)(cid:3014)(cid:3030)(cid:3118) (c) Ω (d) Ω
11. The potential energy of a system increases if work is done (cid:2871) (cid:2872)
20. The rate of increase of thermo e.m.f. with temperature at the
(a) Upon the system by a conservative force
neutral temperature of a thermocouple
(b) Upon the system by a non-conservative force
(a) Is negative
(c) By the system against a conservative force
(b) Is positive
(d) By the system against a non-conservative force
(c) Is zero
12. A body is moving with velocity 30 m/s towards east. After 10
(d) Depends upon the choice of the two materials of the
seconds its velocity becomes 40 m/s towards north. The
thermocouple
average acceleration of the body is
(a) 5 m/s2 (b) 1 m/s2 21. A current carrying closed loop in the form of a right angle
isosceles triangle ABC is placed in a uniform magnetic field
(c) 7 m/s2 (d)√7 (cid:1865)/(cid:1871)(cid:2870)
acting along AB. If the magnetic force on the arm BC is(cid:1832)⃗ the
13. A missile is fired for maximum range with an initial velocity of
20 m/s. If g = 10 m/s2, the range of the missile is force on the arm AC is
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the phase difference between the applied voltage and the
current in the circuit is
(cid:3095)
(a) Zero (b)
(cid:2874)
(cid:3095) (cid:3095)
(c) (d)
(cid:2872) (cid:2870)
29. When 1 kg of ice at 0°C melts to water at 0° C, the resulting

(a) √2(cid:1832) (b) −√2(cid:1832) change in its entropy, taking latent heat of ice to be 80 cal/°C is
(c) −(cid:1832)⃗ (d) (cid:1832)⃗ (a) 293 cal/K (b) 273 cal/K
(c) 8 × 104cal/K (d) 80 cal/K
22. The power obtained in a reactor using(cid:1847)(cid:2870)(cid:2871)(cid:2873)disintegration is
30. During an isothermal expansion, a confined ideal gas does –
1000 kW. The mass decay of(cid:1847)(cid:2870)(cid:2871)(cid:2873) per hour is
150 J of work against its surrounding. This implies that
(a) 1 microgram (b) 10 microgram
(a) 150 J of heat has been added to the gas
(c) 20 microgram (d) 40 microgram
(b) 150 J of heat has been removed from the gas
23. There are four light-weight-rod samples, A, B, C, D separately
(c) 300 J of heat has been added to the gas
suspended by threads. A bar magnet is slowly brought near
(d) No heat is transferred because the process is isothermal
each sample and the following observations are noted
31. A particle of mass m is released from rest and follows a
(i) A is feebly repelled
parabolic path as shown. Assuming that the displacement of
(ii) B is feebly attracted
the mass from the origin is small, which graph correctly depicts
(iii) C is strongly attracted
the position of the particle as a function of time?
(iv) D remains unaffected
Which one of the following is true?
(a) A is of a non-magnetic material
(b) B is of a paramagnetic material
(c) C is of a diamagnetic material
(d) D is of a ferromagnetic material
24. The electric and the magnetic field, associated with an e.m.
wave, propagating along the +(cid:1878)−(cid:1853)(cid:1876)(cid:1861)(cid:1871), can be represented by
(a) (b)
(a) (cid:3427)(cid:1831)(cid:4652)⃗=(cid:1831) (cid:2836),̂(cid:1828)(cid:4652)⃗=(cid:1828) (cid:1837)(cid:4652)(cid:4652)⃗(cid:3431) (b) (cid:3427)(cid:1831)(cid:4652)⃗=(cid:1831) (cid:2835)̂,(cid:1828)(cid:4652)⃗=(cid:1828) (cid:2836)⃗(cid:3431)
(cid:2868) (cid:2868) (cid:2868) (cid:2868)
(c) (cid:3427)(cid:1831)(cid:4652)⃗=(cid:1831) (cid:1837)(cid:3553),(cid:1828)(cid:4652)⃗=(cid:1828) (cid:2835)⃗(cid:3431) (d) (cid:3427)(cid:1831)(cid:4652)⃗=(cid:1831) (cid:2836),̂(cid:1828)(cid:4652)⃗=(cid:1828) (cid:2835)⃗(cid:3431)
(cid:2868) (cid:2868) (cid:2868) (cid:2868)
25. A uniform electric field and a uniform magnetic field are acting
along the same direction in certain region. If an electron is (c) (d)
projected in the region such that its velocity is pointed along 32. Two waves are represented by the equations(cid:1877) =(cid:1853)sin((cid:2033)(cid:1872)+
(cid:2869)
direction of fields, then the electron (cid:1863)(cid:1876)+0.57(cid:1865)and (cid:1877)2=(cid:1853)cos(cid:2033)(cid:1872)+(cid:1863)(cid:1876)(cid:1865), where x is in meter and t in s.
(a) Will turn towards left of direction of motion The phase difference between them is
(b) Will turn towards right of direction of motion (a) 0.57 radian (b) 1.0 radian
(c) Speed will decrease (c) 1.25 radian (d) 1.57 radian
(d) Speed will increase 33. Out of the following functions representing motion of a particle
26. The current i in a coil varies with time t as shown in the figure. which represents SHM?
The variation of induced emf with time would be (A) (cid:1877)=sin(cid:2033)(cid:1872)−cos(cid:2033)(cid:1872) (B) (cid:1877)=(cid:1871)(cid:1861)(cid:1866)(cid:2871)(cid:2033)(cid:1872)
(C) (cid:1877)=5cos(cid:4672)(cid:2871)(cid:3095)−3(cid:2033)(cid:1872)(cid:4673) (D) (cid:1877)=1+(cid:2033)(cid:1872)+(cid:2033)(cid:2870)(cid:1872)(cid:2870)
(cid:2872)
(a) Only (A) and (B)
(b) Only (A)
(c) Only (D) does not represent SHM
(d) Only (A) and (C)
34. Sound waves travel at 350 m/s through a warm air and at 3500
m/s through brass. The wavelength of a 700 Hz acoustic wave
as it enters brass from warm air
(a) Decreases by a factor 20
(a)
(b) Decreases by a factor 10
(c) Increases by a factor 20
(d) Increases by a factor 10
35. The decreasing order of wavelength of infrared, microwave,
ultraviolet and gamma rays is
(b) (a) Infrared, microwave, ultraviolet, gamma rays
(b) Microwave, infrared, ultraviolet, gamma rays
(c) Gamma rays, ultraviolet, infrared, microwaves
(d) Microwaves, gamma rays, infrared, ultraviolet
36. The wavelength of the first line of Lyman series for hydrogen
atom is equal to that of the second line of Balmer series for a
(c) hydrogen like ion. The atomic number Z of hydrogen like ion is
(a) 2 (b) 3
(c) 4 (d) 1
37. Which of the following is not due to total internal reflection?
(a) Brilliance of diamond
(d) (b) Working of optical fibre
(c) Difference between apparent and real depth of a pond
27. In an ac circuit an alternating voltage(cid:1857)=200√2sin100(cid:1872) volts is
(d) Mirage on hot summer days
connected to capacitor of capacity.1(cid:2020)(cid:1832)The r.m.s. value of the
38. A biconvex lens has a radius of curvature of magnitude 20 cm.
current in the circuit is
Which one of the following options describes best the image
(a) 20 mA (b) 10 mA
formed of an object of height 2 cm placed 30 cm from the lens?
(c) 100 mA (d) 200 mA
(a) Real, inverted, height = 1 cm
28. An ac voltage is applied to a resistance R and inductor L in
(b) Virtual, upright, height = 1 cm
series. If R and the inductive reactance are both equal to 3Ω,
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(c) Virtual, upright, height = 0.5 cm Pick out which ones are for AND, NAND and NOT gates,
(d) Real, inverted, height = 4 cm respectively
39. In photoelectric emission process from a metal of work function (a) (ii), (iv) and (iii) (b) (ii), (iii) and (iv)
1.8 eV, the kinetic energy of most energetic electrons is 0.5 eV. (c) (iii), (ii) and (i) (d) (iii), (ii) and (iv)
The corresponding stopping potential is 51. The total number of atomic orbitals in fourth energy level of an
(a) 2.3 V (b) 1.8 V atom is
(c) 1.3 V (d) 0.5 V (a) 4 (b) 8
40. Electrons used in an electron microscope are accelerated by a (c) 16 (d) 32
voltage of 25 kV. If the voltage is increased to 100 kV then the 52. The electrode potentials for(cid:1829)(cid:1873)(cid:2870)(cid:2878) +(cid:1857)(cid:2879)→(cid:1829)(cid:1873) are +0.15 (cid:1848)
((cid:3028)(cid:3044)) ((cid:3046))
de-Broglie wavelength associated with the electrons would and +0.50 (cid:1848) respectively. The value of(cid:1831)(cid:3042) will be
(a) Increase by 4 times (b) Increase by 2 times (cid:3004)(cid:3048)(cid:3118)(cid:3126)/(cid:3030)(cid:3048)
(a) 0.150 V (b) 0.500 V
(c) Decrease by 2 times(d) Decrease by 4 times
(c) 0.325 V (d) 0.650 V
41. Light of two different frequencies whose photons have energies
53. Mole fraction of the solute in a 1.00 molal aqueous solution is
1 eV and 2.5 eV respectively illuminate a metallic surface

whose work function is 0.5 eV successively. Ratio of maximum
(a) 1.7700 (b) 0.1770
speeds of emitted electrons will be
(c) 0.0177 (d) 0.0344
(a) 1 : 5 (b) 1 : 4
54. By what factors does the average velocity of a gaseous
(c) 1 : 2 (d) 1 : 1
molecule increase when the temperature (in Kelvin) is
42. In the Davisson and Germer experiment, the velocity of
doubled?
electrons emitted from the electron gun can be increased by
(a) 1.4 (b) 2.0
(a) Decreasing the potential difference between the anode
(c) 2.8 (d) 4.0
and filament
55. A buffer solution is prepared in which the concentration of NH
(b) Increasing the potential difference between the anode and 3
is 0.30 M and the concentration of(cid:1840)(cid:1834)(cid:2878) is 0.20 M. If the
filament equilibrium constant, K for NH equa(cid:2872)ls 1.8 × 10–5, what is the
(c) Increasing the filament current b 3
pH of this solution?
(d) Decreasing the filament current
(a) 8.73 (b) 9.08
43. The half life of a radioactive isotope X is 50 years. It decays to
(c) 9.43 (d) 11.72
another element Y which is stable. The two elements X and Y
56. Gases A and B having the same volume diffuse through a
were found to be in the ratio of 1: 15 in a sample of a given
porous partition in 20 and 10 seconds respectively. The
rock. The age of the rock was estimated to be
molecular mass of A is 49 u. Molecular mass of B will be
(a) 100 years (b) 150 years
(a) 25.00 u (b) 50.00 u
(c) 200 years (d) 250 years
(c) 12.25 u (d) 6.50 u
44. Photoelectric emission occurs only when the incident light has
57. Which of the following is correct option for free expansion of an
more than a certain minimum
ideal gas under adiabatic condition?
(a) Frequency (b) Power
(a) (cid:1869)=0,∆(cid:1846)<0,(cid:1875)≠0
(c) Wavelength (d) Intensity
(b) (cid:1869)=0,∆(cid:1846)≠0,(cid:1875)=0
45. Fusion reaction takes place at high temperature because
(c) (cid:1869)≠0,∆(cid:1846)=0,(cid:1875)=0
(a) Molecules break up at high temperature
(d) (cid:1869)=0,∆(cid:1846)=0,(cid:1875)=0
(b) Nuclei break up at high temperature
58. For the reaction(cid:1840) ((cid:1859))+(cid:1841) ((cid:1859))⇌2(cid:1840)(cid:1841)((cid:1859)), the equilibrium
(c) Atoms get ionised at high temperature (cid:2870) (cid:2870)
constant is (cid:1837) The equilibrium constant is (cid:1837) for the
(d) Kinetic energy is high enough to overcome the coulomb (cid:2869) (cid:2870)
reaction2(cid:1840)(cid:1841)((cid:1859))+(cid:1841) ((cid:1859))⇌2(cid:1840)(cid:1841) ((cid:1859)). What is K for the
repulsion between nuclei (cid:2870) (cid:2870)
46. A nucleus(cid:3040)(cid:3041)(cid:1850) emits one(cid:2009)−particle and two(cid:2010)−particles. The reaction(cid:1840)(cid:1841)(cid:2870)((cid:1859))⇌(cid:2869)(cid:2870)(cid:1840)(cid:2870)((cid:1859))+(cid:1841)(cid:2870)((cid:1859))
resulting nucleus is (a) (cid:2869) (b) (cid:2869)
((ca)) (cid:3040)(cid:3040)(cid:3041)(cid:2879)(cid:2879)(cid:2879)(cid:2872)(cid:2874)(cid:2870)(cid:1851)(cid:1852) ((bd)) (cid:3040)(cid:3040)(cid:3041)(cid:2879)(cid:2879)(cid:2879)(cid:2872)(cid:2872)(cid:2872)(cid:1852)(cid:1850) (c) ((cid:3012)(cid:3117)(cid:3012)(cid:2869)(cid:3118)) (d) ((cid:4674)(cid:2870)(cid:3012)(cid:2869)(cid:3117)(cid:3012)(cid:3118)(cid:4675))(cid:2869)/(cid:2870)
(cid:3041) (cid:3041)
47. A transistor is operated in common emitter configuration at VC ((cid:2872)(cid:3012)(cid:3117)(cid:3012)(cid:3118)) (cid:3012)(cid:3117)(cid:3012)(cid:3118)
59. If x is amount of adsorbate and m is amount of adsorbent,
= 2 V such that a change in the base current from100 (cid:2020)(cid:1827) to
which of the following relations is not related to adsorption
300 (cid:2020)(cid:1827) produces a change in the collector current from 10 mA
process?
to 20 mA. The current gain
(cid:3051)
(a) =(cid:1868)×(cid:1846)
(a) 25 (b) 50 (cid:3040)
(c) 75 (d) 100 (b) (cid:3051) =(cid:1858)((cid:1868)) (cid:1853)(cid:1872) (cid:1855)(cid:1867)(cid:1866)(cid:1871)(cid:1872)(cid:1853)(cid:1866)(cid:1872) (cid:1846)
(cid:3040)
48. If a small amount of antimony is added to germanium crystal (c) (cid:3051) =(cid:1858)((cid:1846)) (cid:1853)(cid:1872) (cid:1855)(cid:1867)(cid:1866)(cid:1871)(cid:1872)(cid:1853)(cid:1866)(cid:1872) (cid:1868)
(a) Its resistance is increased (cid:3040)
(b) It becomes a p-type semiconductor (d) (cid:1868)(cid:1858)((cid:1846))(cid:1853)(cid:1872) (cid:1855)(cid:1867)(cid:1871)(cid:1866)(cid:1872)(cid:1853)(cid:1866)(cid:1872) (cid:4672)(cid:3051)(cid:4673)
(cid:3040)
(c) The antimony becomes an acceptor atom 60. If the enthalpy change for the transition of liquid water to steam
(d) There will be more free electrons than hole in the is 30 kJ mol–1 at 27°C, the entropy change for the process
semiconductor would be
49. In forward biasing of the p-n junction (a) 100 (cid:1836) (cid:1865)(cid:1867)(cid:1864)(cid:2879)(cid:2869)(cid:1837)(cid:2879)(cid:2869) (b) 10 (cid:1836) (cid:1865)(cid:1867)(cid:1864)(cid:2879)(cid:2869)(cid:1837)(cid:2879)(cid:2869)
(a) The positive terminal of the battery in connected to p-side (c) 1.0 (cid:1836) (cid:1865)(cid:1867)(cid:1864)(cid:2879)(cid:2869)(cid:1837)(cid:2879)(cid:2869) (d) 0.1 (cid:1836) (cid:1865)(cid:1867)(cid:1864)(cid:2879)(cid:2869)(cid:1837)(cid:2879)(cid:2869)
and the depletion region becomes thin 61. The van't Hoff factor i for a compound which undergoes
(b) The positive terminal of the battery is connected to p-side dissociation in one solvent and association in other solvent is
and the depletion region becomes thick respectively
(c) The positive terminal of the battery is connected to n-side (a) Greater than one and greater than one
and the depletion region becomes thin (b) Less than one and greater than one
(d) The positive terminal of the battery is connected to n-side (c) Less than one and less than one
and the depletion region becomes thick (d) Greater than one and less than one
50. Symbolic representation of four logic gates are shown as 62. Standard electrode potential for Sn4/ Sn2couple is +0.15 V and
that for the Cr3/ Cr couple is –0.74 V. These two couples in
(i) (ii) their standard state are connected to make a cell. The cell
potential will be
(a) +1.83 V (b) +1.19 V
(iii) (iv)
(c) +0.89 V (d) +0.18 V
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63. A gaseous mixture was prepared by taking equal mole of CO (c) (cid:1840)(cid:1841)(cid:2878) (cid:1853)(cid:1866)(cid:1856) (cid:1840)(cid:1834)(cid:2879) (d) (cid:1845)(cid:1829)(cid:1840)(cid:2879) (cid:1853)(cid:1866)(cid:1856) (cid:1840)(cid:1834)(cid:2879)
(cid:2872) (cid:2871) (cid:2870)
and N . If the total pressure of the mixture was found 1 77. Which of the following elements is present as the impurity to
2
atmosphere, the partial pressure of the nitrogen (N) in the the maximum extent in the pig iron?
2
mixture is (a) Phosphorus (b) Manganese
(a) 1 atm (b) 0.5 atm (c) Carbon (d) Silicon
(c) 0.8 atm (d) 0.9 atm 78. Which of the following is least likely to behave is Lewis base?
64. If the(cid:1831)(cid:3042) for a given reaction has a negative value, then which (a) (cid:1841)(cid:1834)(cid:2879) (b) (cid:1834) (cid:1841)
(cid:3030)(cid:3032)(cid:3039)(cid:3039) (cid:2870)
of the following gives the correct relationshipsfor the values (c) (cid:1840)(cid:1834) (d) (cid:1828)(cid:1832)
(cid:2871) (cid:2871)
of∆(cid:1833)(cid:3042)and(cid:1837) ? 79. Which one of the following is present as an active ingredient in
(cid:3032)(cid:3044)
(a) ∆(cid:1833)(cid:3042)>(cid:1841);(cid:1837) <1 (b) ∆(cid:1833)(cid:3042)>(cid:1841);(cid:1837) >1 bleaching powder for bleaching action?
(cid:3032)(cid:3044) (cid:3032)(cid:3044)
(c) ∆(cid:1833)(cid:3042)<(cid:1841);(cid:1837)(cid:3032)(cid:3044)>1 (d) ∆(cid:1833)(cid:3042)<(cid:1841);(cid:1837)(cid:3032)(cid:3044)<1 (a) (cid:1829)(cid:1853)(cid:1829)(cid:1864)(cid:2870) (b) (cid:1829)(cid:1853)(cid:1841)(cid:1829)(cid:1864)(cid:2870)
65. The freezing point depression constant for water is –1.86°Cm– (c) (cid:1829)(cid:1853)((cid:1841)(cid:1829)(cid:1864))(cid:2870) (d) (cid:1829)(cid:1853)(cid:1841)(cid:2870)(cid:1829)(cid:1864)
1. If 5.00 g Na SO is dissolved in 45.0 g H O, the freezing 80. The complex, [Pt (Py) (lNH3) Br Cl] will have how many
2 4 2
geometrical isomers?
point is changed by –3.82°C. Calculate the van't Hoff factor for
(a) 2 (b) 3
Na SO
2 4
(c) 4 (d) 0
(a) 0.381 (b) 2.05
81. Name the type of the structure of silicate in which one oxygen
(c) 2.63 (d) 3.11
atom of[(cid:1845)(cid:1861)(cid:1841) ](cid:2872)(cid:2879)is shared?
66. The energies E1 and E2 of two radiations are 25 eV and 50 eV (cid:2872)
respectively. The relation between their wavelengths i.e.(cid:2019) and (a) Three dimensional
(cid:2869)
(b) Linear chain silicate
(cid:2019) will be
(cid:2870)
(cid:2869) (c) Sheet silicate
(a) (cid:2019) = (cid:2019) (b) (cid:2019) =(cid:2019)
(cid:2869) (cid:2870) (cid:2870) (cid:2869) (cid:2870) (d) Pyrosilicate
(c) (cid:2019)(cid:2869)=2(cid:2019)(cid:2870) (d) (cid:2019)(cid:2869)=4(cid:2019)(cid:2870) 82. The complexes
67. Standard electrode potential of three metals X, Y and Z are – [(cid:1829)(cid:1867)((cid:1840)(cid:1834) ) ][(cid:1829)(cid:1870)((cid:1829)(cid:1840)) ](cid:1853)(cid:1866)(cid:1856) [(cid:1829)(cid:1870)((cid:1840)(cid:1834) ) ](cid:1853)(cid:1866)(cid:1856) [(cid:1829)(cid:1867)((cid:1829)(cid:1840)) ]
(cid:2871) (cid:2874) (cid:2874) (cid:2871) (cid:2874) (cid:2874)
1.2 V, +0.5 V and –3.0 V respectively. The reducing power of are the examples of which type of isomerism?
these metals will be (a) Geometrical isomerism
(a) X > Y > Z (b) Y > Z > X (b) Linkage isomerism
(c) Y > X > Z (d) Z > X > Y (c) Ionization isomerism
68. Which one of the following statements for the order of a (d) Coordination isomerism
reaction is incorrect? 83. The d-electron configurations of(cid:1829)(cid:1870)(cid:2870)(cid:2878),(cid:1839)(cid:1866)(cid:2870)(cid:2878),(cid:1832)(cid:1857)(cid:2870)(cid:2878) and
(a) Order of reaction is always whole number (cid:1829)(cid:1867)(cid:2870)(cid:2878),(cid:1832)(cid:1857)(cid:2870)(cid:2878) and (cid:1856)(cid:2872),(cid:1856)(cid:2873),(cid:1856)(cid:2874) and (cid:1856)(cid:2875)respectively. Which one of the
(b) Order can be determined only experimentally
following will exhibit minimum paramagnetic behaviour?
(c) Order is not influenced by stoichiometric coefficient of the
((cid:1827)(cid:1872).(cid:1866)(cid:1867)(cid:1871).(cid:1829)(cid:1870)=24,(cid:1839)(cid:1866)=25,(cid:1832)(cid:1857)=26,(cid:1829)(cid:1867)=27)
reactants (a) [(cid:1829)(cid:1870)((cid:1834) (cid:1841)) ](cid:2870)(cid:2878) (b) [(cid:1839)(cid:1866)((cid:1834) (cid:1841)) ](cid:2870)(cid:2878)
(d) Order of reaction is sum of power to the concentration (c) [(cid:1832)(cid:1857)((cid:1834)(cid:2870)(cid:1841))(cid:2874)](cid:2870)(cid:2878) (d) [(cid:1829)(cid:1867)((cid:1834)(cid:2870)(cid:1841))(cid:2874)](cid:2870)(cid:2878)
terms of reactants to express the rate of reaction (cid:2870) (cid:2874) (cid:2870) (cid:2874)
84. Of the following complex ions, which is diamagnetic in nature?
69. Enthalpy change for the reaction4(cid:1834)((cid:1859))→2(cid:1834) ((cid:1859))is –869.6 kJ.
(cid:2870) (a) [(cid:1829)(cid:1867)(cid:1832) ](cid:2871)(cid:2879)
The dissociation energy of H – H bond is (cid:2874)
(b) (cid:1829)(cid:1841) ,(cid:1829)(cid:1834) ,(cid:1840) (cid:1841) (cid:1853)(cid:1866)(cid:1856) (cid:1829)(cid:1832)(cid:1829)
(a) +217.4 kJ (b) –434.8 kJ (cid:2870) (cid:2872) (cid:2870)
(c) [(cid:1840)(cid:1861)((cid:1829)(cid:1840)) ](cid:2870)(cid:2879)
(c) –869.6 kJ (d) +434.8 kJ (cid:2872)
(d) [(cid:1829)(cid:1873)(cid:1829)(cid:1864) ](cid:2870)(cid:2879)
70. The correct sequence of filling of electrons will be (cid:2872)
85. Which of the following has the minimum bond length?
(a) (cid:1866)(cid:1871)→(cid:1866)−((cid:1866)−1)(cid:1856)→((cid:1866)−2)(cid:1858)
(a) (cid:1841) (b) (cid:1841)(cid:2878)
(b) (cid:1866)(cid:1871)→((cid:1866)−2)(cid:1856)→((cid:1866)−1)(cid:1856)→(cid:1866)(cid:1868) (cid:2870) (cid:2870)
(c) (cid:1841)(cid:2879) (d) (cid:1841)(cid:2870)(cid:2879)
(c) (cid:1866)(cid:1871)→((cid:1866)−1)(cid:1856)→((cid:1866)−2)(cid:1858)→(cid:1866)(cid:1868) (cid:2870) (cid:2870)
86. The value of∆(cid:1834) for the reaction
(d) (cid:1866)(cid:1871)→((cid:1866)−2)(cid:1858)→(cid:1866)(cid:1868)→((cid:1866)−1)(cid:1856)
(cid:1850) +4(cid:1851) ⇌2(cid:1850)(cid:1851) is less than zero. Formation of(cid:1850)(cid:1851)
71. Which of the following compounds has the lowest melting (cid:2870)((cid:3034)) (cid:2870)((cid:3034)) (cid:2872)((cid:3034)) (cid:2872)((cid:3034))
will be favoured at
point?
(a) High pressure and low temperature
(a) (cid:1829)(cid:1853)(cid:1832) (b) (cid:1829)(cid:1853)(cid:1829)(cid:1864)
(cid:2870) (cid:2870) (b) High temperature and high pressure
(c) (cid:1829)(cid:1853)(cid:1828)(cid:1870) (d) (cid:1829)(cid:1853)(cid:1864)
(cid:2870) (cid:2870) (c) Low pressure and low temperature
72. Which of the following pairs of metals is purified by van Arkel
(d) High temperature and low pressure
method?
87. Of the following which one is classified as polyester polymer?
(a) Ni and Fe (b) Ga and In
(a) Nylon-66 (b) Terylene
(c) Zr and Ti (d) Ag and Au
(c) Bakelite (d) Melamine
73. The correct order of increasing bond length of C – H, C – O, C
88. What is the product obtained in the following reaction
– C and C = C is
(a) (cid:1829)−(cid:1834)<(cid:1829)−(cid:1841)<(cid:1829)−(cid:1829)=(cid:1829)
(b) (cid:1829)−(cid:1834)<(cid:1829)=(cid:1829)<(cid:1829)−(cid:1841)<(cid:1829)−(cid:1829)
(c) (cid:1829)−(cid:1829)<(cid:1829)=(cid:1829)<(cid:1829)−(cid:1841)<(cid:1829)−(cid:1834)
(d) (cid:1829)−(cid:1841)<(cid:1829)−(cid:1834)<(cid:1829)−(cid:1829)<(cid:1829)−(cid:1829)
74. Acidified K Cr O solution turns green when Na SO is added
2 2 7 2 3
to it. This is due to the formation of
(a) (cid:1829)(cid:1870)(cid:1845)(cid:1841) (b) (cid:1829)(cid:1870) ((cid:1845)(cid:1841) )
(cid:2872) (cid:2870) (cid:2872) (cid:2871)
(c) (cid:1829)(cid:1870)(cid:1841)(cid:2870)(cid:2879) (d) (cid:1829)(cid:1870) ((cid:1845)(cid:1841) ) (a)
(cid:2872) (cid:2870) (cid:2871) (cid:2871)
75. For the four successive transition elements (Cr, Mn, Fe and
Co), the stability of + 2 oxidation state will be there in which of
the following order?
((cid:1827)(cid:1872).(cid:1866)(cid:1867)(cid:1871).(cid:1829)(cid:1870)=24,(cid:1839)(cid:1866)=25,(cid:1832)(cid:1857)=26,(cid:1829)(cid:1867)=27) (b)
(a) (cid:1829)(cid:1870)>(cid:1839)(cid:1866)>(cid:1829)(cid:1867)>(cid:1832)(cid:1857) (b) (cid:1839)(cid:1866)>(cid:1832)(cid:1857)>(cid:1829)(cid:1870)>(cid:1829)(cid:1867)
(c) (cid:1832)(cid:1857)>(cid:1839)(cid:1866)>(cid:1829)(cid:1867)>(cid:1829)(cid:1870) (d) (cid:1829)(cid:1867)>(cid:1839)(cid:1866)>(cid:1832)(cid:1857)>(cid:1829)(cid:1870)
76. Which of the two ions from the list given below that have the
(c)
geometry that is explained by the same hybridization of
orbitals(cid:1840)(cid:1841)(cid:2879),(cid:1840)(cid:1841)(cid:2879),(cid:1840)(cid:1834)(cid:2879),(cid:1840)(cid:1834)(cid:2878),(cid:1845)(cid:1829)(cid:1840)(cid:2879)?
(cid:2870) (cid:2871) (cid:2870) (cid:2872)
(a) (cid:1840)(cid:1841)(cid:2879) (cid:1853)(cid:1866)(cid:1856) (cid:1840)(cid:1834)(cid:2879) (b) (cid:1840)(cid:1841)(cid:2879) (cid:1853)(cid:1866)(cid:1856) (cid:1840)(cid:1834)(cid:2879)
(cid:2870) (cid:2870) (cid:2870) (cid:2871)
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DS CLASSES SOLVED PAPER

(d)
(a) (b) (c) (d) (a)
89. In a set of reactions m-bromobenzoic acid gave a product D.
Identify the product D.
(b)

(c)
(a) (b)
(d)
(a) (b) (c)(d)
95. The Lassaigne's extract is boiled with conc. HNO while testing
3
for halogens. By doing so it.
(c) (d) (a) Increase the concentration of NO3ions
90. In Duma’s method of estimation of nitrogen 0.35 g of an (b) Decomposes Na2S and NaCN, if formed
organic compound gave 55 mL of nitrogen collected at 300 K (c) Helps in the precipitation of AgCl
temperature and 715 mm pressure. The percentage (d) Increases the solubility product of AgCl
composition of nitrogen in the compound would be 96. The correct IUPAC name of the compound is
(Aqueous tension at 300 K = 15 mm)
(a) 14.45 (b) 15.45
(c) 16.45 (d) 17.45
91. Which one of the following is most reactive towards
electrophilic reagent?
(a) 3-(1-ethyl propyl) hex-1-ene
(b) 4-Ethyl-3-propyl hex-1-ene
(c) 3-Ethyl-4-ethenyl heptanes
(d) 3-Ethyl-4-propyl hex-5-ene
(a) (b) 97. Clemmensen reduction of a ketone is carried out in the
presence of which of the following?
(a) H and Pt as catalyst
2
(b) Glycol with KOH
(c) Zn-Hg with HCl
(c) (d)
(d) (cid:1838)(cid:1861)(cid:1827)(cid:1864)(cid:1834)
(a) (b) (c) (d) (cid:2872)
98. Which one of the following is employed as Antithistamine?
92. Which one is a nucleophilic substitution reaction among the
(a) Omeprazole (b) Chloramphenicol
following?
(c) Diphenyl hydramine (d) Norothindrone
(a) (cid:1829)(cid:1834) (cid:1829)(cid:1834)(cid:1841)+(cid:1834)(cid:1829)(cid:1840)→(cid:1829)(cid:1834) (cid:1829)(cid:1834)((cid:1841)(cid:1834))(cid:1829)(cid:1840) 99. Which one of the following statements is not true
(cid:2871) (cid:2871)
(b) C H 3  C H  C H 2  H 2 O  H   C H 3  C H CH3 r(eag) a(rd+in) gL(a+c)toLsaec,t(cid:1829)ose(cid:1834)? (cid:1841) contains 8 – OH groups
OH (cid:2869)(cid:2870) (cid:2870)(cid:2870) (cid:2869)(cid:2869)
(b) On hydrolysis(+)Lactose gives equal amount of
RCHOR'MgX RCHR'
(c) D(+)glucose and D(+)galactose
OH (c) (+) Lactose is a β -glycoside formed by the union of a
(d) CH CH molecule of D(+)glucose and a molecule of
3 3 D(+)galactose
CH CH CHCH BrNH CH CH CHCH NH
3 2 2 3 3 2 2 2 (d) (+)Lactose is reducing sugar and does not exhibit
(a) (b) (c)(d)
mutarotation
93. Considering the state of hybridization of carbon atoms, find out
100. Which one of the following statement is no true?
the molecule among the following which is linear?
(a) Oxides of sulphur, nitrogen and carbon are the most
(a) (cid:1829)(cid:1834) −(cid:1829)(cid:1834)−(cid:1829)(cid:1834) −(cid:1829)(cid:1834)
(cid:2871) (cid:2870) (cid:2871) widespread air pollutant
(b) (cid:1829)(cid:1834) −(cid:1829)(cid:1834)=(cid:1829)(cid:1834)−(cid:1829)(cid:1834)
(cid:2871) (cid:2871) (b) pH of drinking water should be between 5.5 – 9.5
(c) (cid:1829)(cid:1834) −(cid:1829)≡(cid:1829)−(cid:1829)(cid:1834)
(cid:2871) (cid:2871) (c) Concentration of DO below 6 ppm is good for the growth of
(d) (cid:1829)(cid:1834) =(cid:1829)(cid:1834)−(cid:1829)(cid:1834) −(cid:1829)≡(cid:1829)(cid:1834)
(cid:2870) (cid:2870) fish
94. In the following reactions,
(d) Clean water would have a BOD value of less than 5 ppm
101. The "Eyes" of the potato tuber are
(a) Axillary buds (b) Root buds
(c) Flower buds (d) Shoot buds
102. Organisms called Methanogens are most abundant in a
(a) Hot spring (b) Sulphur rock
(c) Cattle yard (d) Polluted stream
103. Which one of the following have the highest number of species
in nature?
The major products (A) and (C) are respectively (a) Angiosperms (b) Fungi
(c) Insects (d) Birds
104. Archegoniophore is present in
DS CLASSES | B – 63, Kasturba Nagar Near Chetak Bridge Bhopal. 6
DS CLASSES SOLVED PAPER
(a) Funaria (b) Marchantia (d) Endoplasmic reticulum
(c) Chara (d) Adiantum 121. The ovary is half inferior in flowers of
105. Compared with the gametophytes of the bryophytes the (a) Guava (b) Peach
gametophytes of vascular plants tend to be (c) Cucumber (d) Cotton
(a) Smaller and to have smaller sex organs 122. The cork cambium, cork and secondary cortex are collectively
(b) Smaller but to have larger sex organs called
(c) Larger but to have smaller sex organs (a) Phellem (b) Phelloderm
(d) Larger and to haver larger sex organs (c) Phellogen (d) Periderm
106. The gametophyte is not an independent, free-living generation 123. Which one of the following is wrongly matched?
in (a) Cassia – Imbricate aestivation
(a) Pinus (b) Polytrichum (b) Root pressure – Guttation
(c) Adiantum (d) Marchantia (c) Puccinia – Smut
107. Important site for formation of glycoproteins and glycolipids is (d) Root – Exarch protoxylem
(a) Lysosome (b) Vacuole 124. Flowers are Zygomorphic in
(c) Golgi apparatus (d) Plastid (a) Datura (b) Mustard
108. Polypeptide synthesis inside a cell takes place in (c) Gulmohur (d) Tomato
(a) Ribosomes (b) Chloroplast 125. CAM helps the plants in
(c) Mitochondria (d) Chromoplast (a) Reproduction (b) Conserving water
109. In eubacteria, a cellular component that resembles eukaryotic (c) Secondary growth (d) Disease resistance
cell is 126. Of the total incident solar radiation the proportion of PAR is
(a) Cell wall (b) Plasma membrane (a) More than 80% (b) About 70%
(c) Nucleus (d) Ribosomes (c) About 60% (d) Less than 50%
110. Mutations can be induced with 127. A prokaryotic autotrophic nitrogen fixing symbiont found in
(a) Gamma radiations (b) Infra Red radiations (a) Pisum (b) Alnus
(c) I A A (d) Ethylene (c)Cycas (d) Cicer.
111. A collection of plants and seeds having diverse alleles of all the 128. Nucellar polyembryony is reported in species of
genes of a crop is called (a) Brassica (b) Citrus
(a) Genome (b) Herbarium (c) Gossypium (d) Triticum
(c) Germplasm (d) Gene library 129. Filiform apparatus is a characteristic feature of
112. Which one of the following also acts as a catalyst in a bacterial (a) Zygote (b) Suspensor
cell? (c) Egg (d) Synergid
(a) 23 sr RNA (b) 5 sr RNA 130. What would be the number of chromosomes of the aleurone
(c) sn RNA (d) hn RNA cells of a plant with 42 chromosomes in its roots tip cells?
113. Which one of the following statements is correct? (a) 21 (b) 42
(a) Flower of tulip is a modified shoot (c) 63 (d) 84
(b) In tomato, fruit is a capsule 131. Wind pollination is common in
(c) Seeds of orchids have oil-rich endosperms (a) Orchids (b) Legumes
(d) Placentation in primose is basal (c) Lilies (d) Grasses
114. The correct floral formula of chilli is 132. In which one of the following pollination is autogamous?
(a) Cleistogamy (b) Geitonogamy
(c) Xenogamy (d) Chasmogamy
133. Mass of living matter at a trophic level in an area at any time is
(a) 2 (b) 2
called
(a) Standing state (b) Standing crop
(c) Detritus (d) Humus
(c) (d)
134. Which one of the following statements is wrong in case of
115. Nitrifying bacteria
Bhopal tragedy?
(a) Reduce nitrates to free nitrogen
(a) It took place in the night of December 2-3/1984
(b) Oxidize ammonia to nitrates
(b) Methyl Isocyanate gas leakage took place
(c) Convert free nitrogen to nitrogen compounds
(c) Thousands of human beings died
(d) Convert proteins into ammonia
(d) Radioactive fallout engulfed Bhopal
116. The function of leg haemoglobin in the root nodules of legumes
135. Secondary sewage treatment is mainly a
is
(a) Biological process
(a) Expression of nif gene
(b) Physical process
(b) Inhibition of nitrogenase activity
(c) Mechanical process
(c) Oxygen removal
(d) Chemical process
(d) Nodule differentiation
136. Eutrophication is often seen in
117. Which one of the following elements in plants is not
(a) Mountains (b) Deserts
remobilized?
(c) Fresh water lakes (d) Ocean
(a) Sulphur (b) Phosphorus
137. Large Woody Vines are more commonly found in
(c) Calcium (d) Potassium
(a) Alpine forests (b) Temperate forests
118. A drupe develops in
(c) Mangroves (d) Tropical rainforests
(a) Tomato (b) Mango
138. Which one of the following expanded forms of the followings
(c) Wheat (d) Pea
acronyms is correct?
119. Ground tissue includes
(a) IUCN = International Union for Conservation of Nature and
(a) All tissues internal to endodermis
Natural Resources
(b) All tissues external to endodermis
(b) IPCC = International Panel for Climate Change
(c) All tissues except epidermis and vascular bundles
(c) UNEP = United Nations Environmental Policy
(d) Epidermis and cortex
(d) EPA = Environmental Pollution Agency
120. In land plants the guard cells differ from other epidermal cells in
139. Which one of the following statements is correct for secondary
having
succession?
(a) Chloroplasts
(a) It is similar to primary succession except that it has a
(b) Cytoskeleton
relatively fast pace
(c) Mitochondria
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DS CLASSES SOLVED PAPER
(b) It begins on a bare rock c Salamandra (a) A tympanum Amphibia
(c) It occurs on a deforested site represents ear
(d) It follows primary succession (b) Fertilization is
140. Which one of the following shows maximum genetic diversity in external
India? d Pteropus (a) Skin possesses Mammalia
(a) Mango (b) Groundnut Hair
(c) Rice (d) Maize (b) Oviparous
141. Which one of the following is not a biofertilizer?
(a) Mycorrhiza (b) Agrobacterium
(c) Rhizobium (d) Nostoc 154. Which one of the following groups of animals is correctly
142. Which one of the following acts as a physiological barrier to the matched with its one characteristic feature without even a
entry of microorganisms in human body? single exception?
(a) Skin (a) Mammalia : Give birth to young ones
(b) Epithelium of Urogenial tract (b) Reptilia : Possess 3-chambered heart with one
(c) Tears incompletely divided ventricle
(d) Monocytes (c) Chordata : Possess a mouth provided with an upper and a
143. Which one of the following helps in absorption of phosphorus lower jaw
from soil by plants? (d) Chondrichthyes : Possess cartilaginous endoskeleton
(a) Anabaena (b) Glomus 155. What will you look for to identify the sex of the following?
(c) Rhizobium (d) Frankia (a) Male shark - Claspers borne on pelvic fins
144. 'Himgiri' developed by hybridisation and selection for disease (b) Female Ascaris - Sharply curved posterior end
resistance against rust pathogens is a variety of (c) Male frog - A copulatory pad on the first digit of the hind
(a) Wheat (b) Chilli limb
(c) Maize (d) Sugarcane (d) Female cockroach - Anal cerci
145. Which of the followings is mainly produced by the activity of 156. The curve given below show enzymatic activity with relation to
anaerobic bacteria on sewage? three conditions (pH, temperature and substrate concentration)
(a) Marsh gas (b) Laughing gas
(c) Propane (d) Mustard gas
146. Agarose extracted from sea weeds finds use in
(a) Gel electrophoresis(b) Spectrophotometry
(c) Tissue culture (d) PCR
147. Maximum number of existing transgenic animals is of

(a) Pig (b) Fish What do the two axises(x and y) represent?
(c) Mice (d) Cow x – axis y - axis
148. Continuous addition of sugars in 'fed batch' fermentation is
done to (a) Enzymatic activity Temperature
(a) Degrade sewage (b) Produce methane
(b) Enzymatic activity pH
(c) Obtain antibiotics (d) Purify enzymes
149. The process of RNA interference has been used in the (c) Temperature Enzymatic Activity
development of plants resistant to
(d) Substrate Enzymatic Activity
(a) Insects (b) Nematodes
concentration
(c) Fungi (d) Viruses
150. "Jaya" and "Ratna" developed for green revolution in India are
the varieties of 157. The ciliated columnar epithelial cells in humans are known to
(a) Bajra (b) Maize occur in
(c) Rice (d) Wheat (a) Fallopian tubes and urethra
151. Which one of the following organisms is not an example of (b) Eustachian tube and stomach lining
eukaryotic cells (c) Bronchioles and Fallopian tubes
(a) Amoeba proteus (d) Bile duct and oesophagus
(b) Paramecium caudatum 158. Select the correct option with respect to mitosis
(c) Escherichia coli (a) Chromosomes move to the spindle equator and get
(d) Euglenaviridis aligned along equatorial plate in metaphase
152. Which one of the following animals is correctly matched with its (b) Chromatids separate but remain in the centre of the cell in
particular named taxonomic category? anaphase
(a) Housefly - Musca, an order (c) Chromatids start moving towards opposite poles in
(b) Tiger - Tigris, the species telophase
(c) Cuttlefish - Mollusca, a class (d) Golgi complex and endoplasmic reticulum are still visible
(d) Humans - Primata, the family at the end of prophase
153. In which one of the following the genus name, its two 159. Which one of the following structural formulae of two organic
characters and its class/phylum are correctly matched? compounds is correctly identified along with its related
Genus Two Class/ function?
Name characters Phylum
a Aurelia (a) Cnidoblasts Coelenterata
(b) Organ level of
organization
b Ascaris (a)Body segmented Annelida
(b) Males and females
Distinct
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DS CLASSES SOLVED PAPER
166. A large proportion of oxygen is left unused in the human blood
even after its uptake by the body tissues. This O
2
(a) Helps in releasing more O to the epithelium tissues
2
(b) Acts as a reserve during muscular exercise
(c) Raises the pCO of blood to 75 mm of Hg
2
(d) Is enough to keep oxyhaemoglobin saturation at 96%
167. Which one of the following enzymes carries on the initial step in
the digestion of milk in humans?
(a) Trypsin (b) Pepsin
(c) Rennin (d) Lipase
168. Which one of the following is not a part of a renal pyramid?
(a) Loops of Henle
(b) Peritubular capillaries
(c) Convoluted tubules
(d) Collecting ducts
169. One very special feature in the earthworm pheretima is that

(a) It has a long dorsal tubular heart
(a) A : Lecithin - a component of cell membrane
(b) Fertilisation of eggs occurs inside the body
(b) B : Adenine - a nucleotide that makes up nucleic acids
(c) The typhlosole greatly increases the effective absorption
(c) A : Triglyceride - major source of energy
area of the digested food in the intestine
(d) B : Uracil - a component of DNA
(d) The S-shaped setae embedded in the integument are the
160. What was the most significant trend in the evolution of modern
defensive weapons used against the enemies
man (Homo sapiens) from his ancestors?
170. Two friends are eating together on a dining table. One of them
(a) Increasing brain capacity
suddenly starts coughing while swallowing some food. This
(b) Upright posture
coughing would have been due to improper movement of
(c) Shortening of jaws
(a) Tongue (b) Epiglottis
(d) Binocular vision
(c) Diaphragm (d) Neck
161. Which one of the following conditions correctly describes the
171. Arteries are best defined as the vessels which
manner of determining the sex in the given example?
(a) Carry blood from one visceral organ to another visceral
(a) Homozygous sex chromosomes (XX) produce male in
organ
Drosophila
(b) Supply oxygenated blood to the different organs
(b) Homozygous sex chromosomes (ZZ) determine female
(c) Carry blood away from the heart to different organs
sex in birds
(d) Break up into capillaries which reunite to form a vein
(c) XO type of sex chromosomes determine male sex in
172. 'Bundle of His' is a part of which one of the following organs in
grasshopper
humans?
(d) XO condition in humans as found in Turner Syndrome,
(a) Pancreas (b) Brain
determines female sex
(c) Heart (d) Kidney
162. A person with unknown blood group under ABO system has
173. The purplish red pigment rhodopsin contained in the rods type
suffered much blood loss in an accident and needs immediate
of photoreceptor cells of the human eye, is a derivative of
blood transfusion. His one friend, who has a valid certificate of
(a) Vitamin A (b) Vitamin B1
his own blood type, offers for blood donation without delay.
(c) Vitamin C (d) Vitamin D
What would have been the type of blood group of the donor
174. Which one of the following plasma proteins is involved in the
friend?
coagulation of blood?
(a) Type A (b) Type B
(a) Fibrinogen (b) An albumin
(c) Type AB (d) Type O
(c) Serum amylase (d) A globulin
163. What are those structures that appear as 'beads-on-string' in
175. When a neuron is in resting state i.e. not conducting any
the chromosomes when viewed under electron microscope?
impulse, the axonal membrane is
(a) Base pairs (b) Genes
(a) Comparatively more permeable to K+ ions and nearly
(c) Nucleotides (d) Nucleosomes
impermeable to Na+ions
164. Match the source gland with its respective hormone as well as
(b) Comparatively more permeable to Na+ ions and nearly
the function
impermeable to K+ ions
SourceGland Hormone Function
(c) Equally permeable to both Na+ and K+ ions
(a) Thyroid Thyroxine Regulates blood (d) Impermeable to both Na+ and K+ ions
calcium level 176. Which one of following correctly explains the function of a
specific part of a human nephron?
(b) Anterior Oxytocin Contraction of uterus
(a) Afferent arteriole : Carries the blood away from the
Pituitary muscles during child
glomerulus towards renal vein
birth
(b) Podocytes : Create minute spaces (slit pores) for the
filtration of blood into the Bowman's capsule
(c) Posterior Vasopressin Stimulates resorption
(c) Henle's loop : Most reabsorption of the major substances
Pituitary of water in the distal
from the glomerular filtrate
tubules in the
(d) Distal convoluted tubule: Reabsorption of K+ ions into the
nephron
surrounding blood capillaries
177. Given below is an incomplete table about certain hormones,
(d) Corpus Estrogen Supports pregnancy
their source glands and one major effect of each on the body in
Luteum
humans. Identify the correct option for the three blanks A, B
165. Which of the following is correctly stated as happens in the and C
common cockroach? GLANDS SECRETIO EFFECT ON BODY
(a) The food is ground by mandibles and gizzard N
(b) Malpighian tubules are excretory organ projecting out from a A Oestro-gen Maintenance of
the colon secondary
(c) Oxygen is transported by haemoglobin of blood sexual characters
(d) Nitrogenous excretory product is urea b Alpha cells of B Raises blood sugar
DS CLASSES | B – 63, Kasturba Nagar Near Chetak Bridge Bhopal. 9
DS CLASSES SOLVED PAPER
Islets of level (d) Providing more space for the growth of epididymis
Langerh-ans 184. Which one of the following is the most widely accepted method
c Anterior C Over secretion leads of contraception in India, as at present?
pituitary to (a) IUDs' (Intra uterine devices)
gigantism (b) Cervical caps
(a) A- Placenta, B- Glucagon, C - Calcitonin (c) Tubectomy
(b) A-Ovary, B-Glucagon, C- Growth hormone (d) Diaphragms
(c) A- Placenta, B- Insulin, C- Vasopressin 185. If for some reason, the vasa efferentia in the human
(d) A- Ovary, B- Insulin, C- Calcitonin reproductive system get blocked, the gametes will not be
178. Uricotelic mode of passing out nitrogenous wastes in found in transported from
(a) Insects and Amphibians (a) Vagina to uterus
(b) Reptiles and Birds (b) Testes to epididymis
(c) Birds and Annelids (c) Epididymis to vas deferens
(d) Amphibians and Reptiles (d) Ovary to uterus
179. The figure given below shows a small part of human lung 186. Medical Termination of Pregnancy (MTP) is considered safe up
where exchange of gases takes place. In which one of the to how many weeks of pregnancy?
options given below, the one part A, B, C or D is correctly (a) Six weeks (b) Eight weeks
identified along with its function? (c) Twelve weeks (d) Eighteen weeks
187. Which one of the following is categorised as a parasite in true
sense?
(a) The cuckoo (koel) lays its egg in crow's nest
(b) The female Anopheles bites and sucks blood from humans
(c) Human foetus developing inside the uterus draws
nourishment from the mother
(d) Head louse living on the human scalp as well as laying
eggs on human hair
188. What type of human population is represented by the following
Options pyramid?
(a) B : Red blood cell - transport of CO mainly
2
(b) C : Arterial capillary - passes oxygen to tissues
(c) A : alveolar cavity - main site of exchange of respiratory
gases
(d) D : Capillary wall - exchange of O and CO takes place
2 2
here
180. Which one of the following statements is correct regarding
blood pressure?
(a) 190/110 mm of Hg may harm vital organs like brain and
kidney
(a) Expanding population
(b) 130/90 mm of Hg is considered high and requires
(b) Vanishing population
treatment
(c) Stable population
(c) 100/55 mm of Hg is considered an ideal blood pressure
(d) Declining population
(d) 105/50 mm of Hg makes one very active
189. Which one of the following statements for pyramid of energy is
181. Which one of the following statements is correct with respect
incorrect, whereas the remaining three are correct?
to kidney function regulation?
(a) It is upright in shape
(a) During summer when body loses lot of water by
(b) Its base is broad
evaporation, the release of ADH is suppressed
(c) It shows energy content of different trophic level organisms
(b) When someone drinks lot of water, ADH release is
(d) It is inverted in shape
suppressed
190. Ethanol is commercially produced through a particular species
(c) Exposure to cold temperature stimulates ADH release
of
(d) An increase in glomerular blood flow stimulates formation
(a) Aspergillus (b) Saccharomyces
of Angiotensin II
(c) Clostridium (d) Trichoderma
182. The figure given below depicts a diagrammatic sectional view
191. Consider the following four conditions (a - d) and select the
of the female reproductive system of humans. Which one set of
correct pair of them as adaptation to environment in desert
three parts out of I – VI have been correctly identified?
lizards.
The conditions
(a) Burrowing in soil to escape high temperature
(b) Losing heat rapidly from the body during high temperature
(c) Bask in sun when temperature is low
(d) Insulating body due to thick fatty dermis
(a) (a), (b) (b) (c), (d)
(c) (a), (c) (d) (b), (d)
192. Which one of the following pairs of gases are the major cause
(a) (I) Perimetrium, (II) Myometrium, (III) Fallopian tube of "Greenhouse Effect"?
(b) (II) Endometrium, (III) Infundibulum, (IV) Fimbriae (a) (cid:1829)(cid:1841) and (cid:1840) (cid:1841) (b) (cid:1829)(cid:1841) and(cid:1841)
(cid:2870) (cid:2870) (cid:2870) (cid:2871)
(c) (III) Infundibulum, (IV) Fimbriae, (V) Cervix
(c) (cid:1829)(cid:1841) and (cid:1845)(cid:1841) (d) (cid:1829)(cid:1832)(cid:1829)(cid:1871) and (cid:1845)(cid:1841)
(cid:2870) (cid:2870) (cid:2870)
(d) (IV) Oviducal funnel, (V) Uterus, (VI) Cervix
193. Where will you look for the sporozoites of the malarial parasite?
183. The testes in humans are situated outside the abdominal cavity
(a) Salivary glands of freshly moulted female Anopheles
inside a pouch called scrotum. The purpose served is for
mosquito
(a) Providing a secondary sexual feature for exhibiting the
(b) Saliva of infected female Anopheles mosquito
male sex
(c) Red blood corpuscles of humans suffering from malaria
(b) Maintaining the scrotal temperature lower than the internal
(d) Spleen of infected humans
body temperature
(c) Escaping any possible compression by the visceral organs
DS CLASSES | B – 63, Kasturba Nagar Near Chetak Bridge Bhopal. 10