Solved papers for Haryana PMT Haryana PMT Solved Paper-2008

Haryana PMT Solved Paper-2008 Total Questions - 180

1) A black body at \[1227{}^\circ C\] emits radiations with maximum intensity at a wavelength of \[5000\overset{\text{o}}{\mathop{\text{A}}}\,\]. If the temperature of the body is increased by \[1000{}^\circ C\], the maximum intensity will be observed at

A)

\[4000\overset{\text{o}}{\mathop{\text{A}}}\,\]

B)

\[5000\overset{\text{o}}{\mathop{\text{A}}}\,\]

C)

\[6000\overset{\text{o}}{\mathop{\text{A}}}\,\]

D)

\[3000\overset{\text{o}}{\mathop{\text{A}}}\,\]

View Answer
2) A transistor-oscillator using a resonant circuit      with an inductor L (of negligible resistance) and a capacitor C in series produce oscillations of frequency\[f\]. If L is doubled and C is changed to 4C, the frequency will be

A)

\[f\]/4

B)

8\[f\]

C)

\[f\]/\[2\sqrt{2}\]

D)

\[f\]/2

View Answer
3) A Carnot engine whose sink is at 300 K has an     efficiency of 40%. By how much should the temperature of source be increased so as to            increase its efficiency by 50% of original efficiency?

A)

275 K

B)

325 K

C)

250 K

D)

380 K

View Answer
4) An \[\alpha \]-particle of energy 5 MeV is scattered through 180° by a fixed uranium nucleus. The distance of the closest approach is of the order of

A)

\[1\overset{\text{o}}{\mathop{\text{A}}}\,\]

B)

\[{{10}^{-10}}cm\]

C)

\[{{10}^{-12}}cm\]

D)

\[{{10}^{-15}}cm\]

View Answer
5) Two masses \[{{m}_{1}}=5kg\] and \[{{m}_{2}}=4.8\text{ }kg\] tied to a string are hanging over a light frictionless pulley. What is the acceleration of the masses when lift is free to move ? \[(g=9.8m/{{s}^{2}})\]

A)

\[0.2\text{ }m/{{s}^{2}}\]

B)

\[9.8\text{ }m/{{s}^{2}}\]

C)

\[5\text{ }m/{{s}^{2}}\]

D)

\[4.8\text{ }m/{{s}^{2}}\]

View Answer
6) Alternating current cannot be measured by DC ammeter because

A)

AC cannot pass through DC ammeter

B)

AC changes direction.

C)

average value of current for complete ycle is zero

D)

DC ammeter will get damaged

View Answer
7) Two cells, having the same emf, are connected in series through an external      resistance R. Cells have internal resistances \[{{r}_{1}}\]and \[{{r}_{2}}\]\[({{r}_{1}}>{{r}_{2}}),\] respectively. When the circuit is              closed, the potential difference across the first cell is zero. The value of R is

A)

\[{{r}_{1}}-{{r}_{2}}\]

B)

\[\frac{{{r}_{1}}+{{r}_{2}}}{2}\]

C)

\[\frac{{{r}_{1}}+{{r}_{2}}}{2}\]

D)

\[{{r}_{1}}+{{r}_{2}}\]

View Answer
8) The binding energy of deuteron is 2.2 MeV and that of \[_{2}^{4}\]He is 28 MeV. If two deuterons          are fused to form one \[_{2}^{4}\]He, then the energy released is

A)

25.8 MeV

B)

23.6 MeV

C)

19.2 MeV

D)

30.2 MeV

View Answer
9) lonization potential of hydrogen atom is 13.6      eV. Hydrogen atoms in the ground state are       excited by monochromatic radiation of        photon energy 12.1 eV. According to Bohrs         theory, the spectral lines emitted by hydrogen will be

A)

two

B)

three

C)

four

D)

one

View Answer
10) The potential energy of a long spring when stretched by 2 cm is \[U\]. If the spring is stretched by 8 cm the potential energy stored in it is

A)

4\[U\]

B)

8\[U\]

C)

16\[U\]

D)

\[U\]/4

View Answer
11) For angles of projection of a projectile at angles (45° - \[\text{ }\!\!\theta\!\!\text{ }\]) and (45° + \[\text{ }\!\!\theta\!\!\text{ }\]), the horizontal                ranges described by the projectile are in the       ratio of

A)

1 : 1

B)

2 : 3

C)

1: 2

D)

2 :1

View Answer
12) A body of mass 3 kg is under a constant force     which causes a displacement s in metres in it, given by the relation \[s=\frac{1}{3}{{t}^{2}},\] where t is in 0 second. Work done by the force in 2 s is

A)

\[\frac{5}{19}J\]

B)

\[\frac{3}{8}J\]

C)

\[\frac{8}{3}J\]

D)

\[\frac{19}{5}J\]

View Answer
13) A particle moves along a straight line OX. At a time t (in second) the distance x (in metre) of the particle from 0 is given by \[x=40+12t-{{t}^{3}}\]how long would the particle travel before coming to rest?

A)

24 m

B)

40 m

C)

56 m

D)

16 m

View Answer
14) The velocity v of a particle at time t is given by \[v=at+\frac{b}{t+c}\]where a, b and c are constants. The dimensions of a, b and c are respectively

A)

\[[L{{T}^{2}}],[L]\] and \[[T]\]

B)

\[[{{L}^{2}}],\text{ }\!\![\!\!\text{ T }\!\!]\!\!\text{ }\] and \[[L{{T}^{2}}]\]

C)

\[[L{{T}_{2}}],[LT]\] and \[[L]\]

D)

\[[L],[LT]\] and \[[{{T}^{2}}]\]

View Answer
15) A microscope is focussed on a mark on a piece of paper and then a slab of glass of thickness      3 cm and refractive index 1.5 is placed over the mark. How should the microscope be moved to get the mark in focus again?

A)

1 cm upward

B)

4.5 cm downward

C)

1 cm downward

D)

2 cm upward

View Answer
16) 300 J of work is done in sliding a 2 kg block up     an inclined plane of height 10 m. Taking \[g=10m/{{s}^{2}}\] work done against friction is

A)

200 J

B)

100 J

C)

zero

D)

1000 J

View Answer
17) A transistor is operated in common emitter configuration at constant collector voltage \[{{V}_{C}}=1-5V\] such that a change in the base current from 100 \[\mu \]A to 150 \[\mu \]A produces a        change in the collector current from 5 mA to    10 mA. The current gain (\[\beta \]) is

A)

67

B)

75

C)

100

D)

50

View Answer
18) The core of a transformer is laminated because

A)

energy losses due to eddy currents may be minimized

B)

the weight of the transformer may be reduced

C)

rusting of the core may be prevented

D)

ratio of voltage in primary and secondary may be increased

View Answer
19) Two coils of self-inductances 2 mH and 8 mH       are placed so close together that the effective flux in one coil is completely linked with the          other. The mutual inductance between these    coils is

A)

10 mH

B)

6 mH

C)

4 mH

D)

16 mH

View Answer
20) In a discharge tube ionization of enclosed gas is produced due to collisions between

A)

positive ions and neutral atoms/molecules

B)

negative electrons and neutral atoms/molecules

C)

photons and neutral atoms/molecules

D)

neutral gas atoms/molecules

View Answer
21) When photons of energy hv fall on an    aluminium plate (of work function \[{{E}^{0}}\]),              photoelectrons of maximum kinetic energy K are ejected. If the frequency of the radiation is doubled, the maximum kinetic energy of the ejected photoelectrons will be

A)

\[K+{{e}_{0}}\]

B)

\[2K\]

C)

\[K\]

D)

\[K+hv\]

View Answer
22) A coil of inductive reactance 31\[\Omega \] has a             resistance of 8\[\Omega \]. It is placed in series with a condenser of capacitive reactance 25\[\Omega \]. The combination is connected to an AC source of 110 V. The power factor of the circuit is

A)

0.56

B)

0.64

C)

0.80

D)

0.33

View Answer
23) The moment of inertia of a uniform circular disc of radius R and mass M about an axis touching the disc at its diameter and normal to the disc is

A)

\[M{{R}^{2}}\]

B)

\[\frac{2}{5}M{{R}^{2}}\]

C)

\[\frac{3}{2}M{{R}^{2}}\]

D)

\[\frac{1}{2}M{{R}^{2}}\]

View Answer
24) The momentum of a photon of energy 1 MeV in kg-m/s, will be

A)

\[0.33\times {{10}^{6}}\]

B)

\[7\times {{10}^{-24}}\]

C)

\[{{10}^{-22}}\]

D)

\[5\times {{10}^{-22}}\]

View Answer
25) The radius of germanium (Ge) nuclide is measured to be twice the radius of \[_{4}^{9}\]Be. The number of nucleons in Ge are

A)

73

B)

74

C)

75

D)

72

View Answer
26) The molar specific heat at constant pressure of an ideal gas is (7/2)R. The ratio of specific heat at constant pressure to that at constant volume is

A)

7/5

B)

8/7

C)

5/7

D)

9/7

View Answer
27) The earth is assumed to be a sphere of radius    R.A platform is arranged at a height R from the surface of the earth. The escape velocity of a body from this platform is \[f{{v}_{e,}}\] where \[{{v}_{e}}\] is its escape velocity from the surface of the    earth. The value of\[f\] is

A)

\[\sqrt{2}\]

B)

\[\frac{1}{\sqrt{2}}\]

C)

\[\frac{1}{3}\]

D)

\[\frac{1}{2}\]

View Answer
28) Two sound waves with wavelength 5.0 m and    5.5 m respectively, each propagate in a gas with velocity 330 m/s. We expect the following number of beats per second

A)

12

B)

zero

C)

1

D)

6

View Answer
29) Power dissipated across the 8\[\Omega \] resistor in the circuit shown here is 2W. The power dissipated in watt units across the 3\[\Omega \]               resistor is

A)

2.0

B)

1.0

C)

0.5

D)

3.0

View Answer
30) Kirchhoffs first and second laws for electrical circuits are consequences of

A)

conservation of energy

B)

conservation of electric charge and energy respectively

C)

conservation of electric charge

D)

conservation of energy and electric charge respectively

View Answer
31) A transverse wave propagating along x-axis is represented by \[y(x,t)=8.0\sin \left( 05\pi x-4\pi t-\frac{\pi }{4} \right)\]where x is in metre and t is in second. The speed of the wave is

A)

4\[\pi \] m/s

B)

0.5 \[\pi \] m/s

C)

\[\frac{\pi }{4}\] m/s

D)

8 m/s

View Answer
32) The time of reverberation of a room A is one second. What will be the time (in second) of reverberation of a room, having all the. dimensions double of those of room A?

A)

2

B)

4

C)

\[\frac{1}{2}\]

D)

1

View Answer
33) Which one of the following statements is true?

A)

Both light and sound waves in air are transverse

B)

The sound waves in air are longitudinal while the light waves are transverse

C)

Both light and sound waves in air are longitudinal

D)

Both light and sound waves can travel in vacuum

View Answer
34) Above Curie temperature

A)

a ferromagnetic substance becomes     paramagnetic

B)

a paramagnetic substance becomes       diamagnetic

C)

a diamagnetic substance becomes          paramagnetic

D)

a paramagnetic substance becomes       ferromagnetic

View Answer
35) A convex lens and a concave lens, each having same focal length of 25 cm, are put in contact     to form a combination of lenses. The power in diopters of the combination is

A)

25

B)

50

C)

infinite

D)

zero

View Answer
36) An electric dipole of moment \[\overrightarrow{\text{P}}\] is lying along              a uniform electric field \[\overrightarrow{\text{E}\text{.}}\]The work done in rotating the dipole by 90° is

A)

\[\sqrt{2}pE\]

B)

\[\frac{pE}{2}\]

C)

\[2pE\]

D)

\[pE\]

View Answer
37) A car runs at a constant speed on a circular track of radius 100 m, taking 62.8 s for every                 circular lap. The average velocity and average speed for each circular lap respectively is

A)

0, 0

B)

0, 10 m/s

C)

10 m/s, 10 m/s

D)

10 m/s, 0

View Answer
38) A tube of length L is filled completely with an     incompressible liquid of mass M and closed at    both the ends. The tube is then rotated in a               horizontal plane about one of its ends with a      uniform angular velocity \[\omega .\]The force exerted      by the liquid at the other end is

A)

\[\frac{ML{{\omega }^{2}}}{2}\]

B)

\[\frac{M{{L}^{2}}{{\omega }^{{}}}}{2}\]

C)

\[ML{{\omega }^{2}}\]

D)

\[\frac{M{{L}^{2}}{{\omega }^{2}}}{2}\]

View Answer
39) Which of the following statements is correct for any thermodynamic system?

A)

The internal energy changes in all processes

B)

Internal energy and entropy are state functions

C)

The change in entropy can never be zero

D)

The work done in an adiabatic process is always zero

View Answer
40) The vectors \[\text{\vec{A}}\] and \[\text{\vec{B}}\] are such that\[\text{ }\!\!|\!\!\text{ }\overrightarrow{\text{A}}\text{+}\overrightarrow{\text{B}}\text{ }\!\!|\!\!\text{ }\,\text{=}\,\text{ }\!\!|\!\!\text{ }\overrightarrow{\text{A}}\text{-}\overrightarrow{\text{B}}|\] The angle between the two vectors is

A)

\[90{}^\circ \]

B)

\[60{}^\circ \]

C)

\[75{}^\circ \]

D)

\[45{}^\circ \]

View Answer
41) Infrared radiations are detected by

A)

spectrometer

B)

pyrometer

C)

nanometer

D)

photometer

View Answer
42) Which of the following is more close to a black body?

A)

Black board paint

B)

Green leaves

C)

Black holes

D)

Red roses

View Answer
43) Formation of covalent bonds in compounds exhibits

A)

wave nature of electron

B)

particle nature of electron

C)

both wave and particle nature of electron

D)

None of the above

View Answer
44) The radius of a spherical drop of water is 1 mm. If surface tension of water be \[70\times {{10}^{-3}}N/m,\]the pressure difference inside and     outside the drop will be

A)

\[70\text{ }N/{{m}^{2}}\]

B)

\[140\text{ }N/{{m}^{2}}\]

C)

\[280\text{ }N/{{m}^{2}}\]

D)

zero

View Answer
45) A laser beam is coherent because it contains

A)

waves of several wavelengths

B)

incoherent waves of a single wavelength

C)

coherent waves of several wavelengths

D)

coherent waves of a single wavelength

View Answer
46) Protein is a polymer of

A)

glucose

B)

terephthalic acid

C)

amino acid

D)

glycol

View Answer
47) \[HCl\] is completely neutralised by \[NaOH\] solution. The resulting solution contains the following species

A)

\[N{{a}^{+}},C{{l}^{-}},{{H}_{3}}{{O}^{+}}\]

B)

\[N{{a}^{+}},C{{l}^{-}},{{H}_{2}}O\]

C)

\[N{{a}^{+}},C{{l}^{-}},O{{H}^{-}}\]

D)

\[{{H}^{+}},{{H}_{3}}{{O}^{+}}\]

View Answer
48) The degree of dissociation of XY in case of following reaction is found to be \[0.4\] from vapour density measurement. If the observed vapour density of X Y be 100 then its molecular weight is \[XY\to X+Y\]

A)

\[140\]

B)

\[70\]

C)

\[280\]

D)

\[210\]

View Answer
49) For the reaction,\[C(s)+C{{O}_{2}}(g)2CO(g)\]the partial pressure of \[C{{O}_{2}}\] and \[CO\] are 2.0 and 4.0 arm respectively then equilibrium \[{{K}_{p}}\] for the reaction will be

A)

\[0.5\]

B)

\[8.0\]

C)

\[4.0\]

D)

\[32\]

View Answer
50) Solubility of \[AgCl\] will be minimum in

A)

\[0.01M\text{ }NaCl\]solution

B)

\[0.01M\text{ }CaC{{l}_{2}}\] solution

C)

pure water

D)

\[0.001M\,\,\,AgN{{O}_{3}}\]solution

View Answer
51) pH of \[HCl\] (cone.\[0.1mol/L\]) is one. Compute the pH of 0.05 mol/L solution of \[{{H}_{2}}S{{O}_{4}}\].

A)

\[0.05\]

B)

\[0.5\]

C)

\[1\]

D)

\[2\]

View Answer
52) What is the pH at equivalence point in the titration of \[0.1M\,\,\,C{{H}_{3}}COOH\]and \[0.1M\]\[NaOH\]? (\[{{K}_{a}}\] for acetic acid is\[1.8\times {{10}^{-5}}\])

A)

7

B)

Between 7 and 8

C)

Between 8 and 9

D)

Between 6 and 7

View Answer

53) Given

Acid	\[p{{K}_{a}}\]
\[C{{H}_{3}}C{{O}_{2}}H\]	(i) \[0.7\]
\[CC{{l}_{3}}C{{O}_{2}}H\]	(ii) \[0.2\]
\[ClC{{H}_{2}}C{{O}_{2}}H\]	(iii) \[4.8\]
\[{{F}_{3}}CC{{O}_{2}}H\]	(iv) \[2.9\]

The correct code is

A-(iii) B- (i) C-(iv) D- (ii)

A- (ii) B-(iv) C-(i) D- (iii)

A- (iii) B- (ii) C-(i) D- (iv)

A-(i) B-(iii) C-(ii) D- (iv)

View Answer

54) A basic buffer solution is formed by selecting the pair

A)

\[KCN-KOH\]

B)

\[C{{H}_{3}}COOH-NaCl\]

C)

\[N{{H}_{4}}OH-C{{H}_{3}}COON{{H}_{4}}\]

D)

\[NaCI-NaOH\]

View Answer
55) Which will have the minimum value of \[p{{K}_{b}}\]?

A)

\[O{{H}^{-}}\]

B)

\[C{{H}_{3}}CO{{O}^{-}}\]

C)

\[Cr\]

D)

\[HCO{{O}^{-}}\]

View Answer
56) A first order reaction complete ifs \[10%\] in 20 min then time required to complete-its \[19%\]is (log\[3=0.477\])

A)

\[30\text{ }min\]

B)

\[40min\]

C)

\[38min\]

D)

\[45min\]

View Answer
57) The \[\Delta H\] value of the reaction,\[{{H}_{2}}+C{{l}_{2}}2HCl\] is \[-44.2kcal\] If \[{{E}_{1}}\] is the activation energy of the forward reaction, then for the above reaction activation energy of reverse reaction \[{{E}_{2}}\] is

A)

\[{{E}_{1}}>{{E}_{2}}\]

B)

\[{{E}_{1}}<{{E}_{2}}\]

C)

\[{{E}_{1}}={{E}_{2}}\]

D)

\[\Delta H\] is not related to \[{{E}_{1}}\] and \[{{E}_{2}}\]

View Answer
58) The integrated rate equation is \[kt=\log \,{{C}_{0}}-\log {{C}_{t}}\]. The straight line graph is obtained by plotting

A)

\[\log {{C}_{t}}\] vs time

B)

\[\frac{1}{time}vs\,\,{{C}_{t}}\]

C)

time \[vs\,\,{{C}_{t}}\]

D)

\[\frac{1}{time}vs\frac{1}{{{C}_{t}}}\]

View Answer
59) A mixture has \[18g\]water and \[414g\]ethanol. The mole fraction of water in mixture is (assume ideal behaviour of the mixture)

A)

\[0.1\]

B)

\[0.4\]

C)

\[0.7\]

D)

\[0.9\]

View Answer
60) An aqueous solution of methanol in water has vapour pressure

A)

equal to that of water

B)

equal to that of methanol

C)

more than that of water

D)

less than that of water

View Answer
61) Which of the following liquid pairs shows a positive deviation from Raoults law?

A)

Water-nitric acid

B)

Benzene-methanol

C)

Water-hydrochloric acid

D)

Acetone-chloroform

View Answer
62) A solution of sucrose (molar mass\[=342\text{ }g/mol\]) is prepared by dissolving 68.4 g of it per litre of the solution, what is its osmotic pressure? (\[R=0.082L\text{ }atm\text{ }{{K}^{-1}}\text{ m}o{{l}^{-1}}\]) at 273 K

A)

\[6.02\text{ }atm\]

B)

\[4.477atm\]

C)

\[3.4atm\]

D)

\[5.32atm\]

View Answer
63) How many atoms of calcium will be deposited from a solution of \[CaC{{l}_{2}}\]by a current of 25 milliamperes flowing for 60 s

A)

\[4.68\times {{10}^{18}}\]

B)

\[4.68\times {{10}^{15}}\]

C)

\[4.68\times {{10}^{12}}\]

D)

\[4.68\times {{10}^{9}}\]

View Answer
64) EMF of a cell whose half cells are given below is \[M{{g}^{2+}}+2{{e}^{-}}\xrightarrow{{}}Mg(s);\]             \[E=-2.37V\] \[C{{u}^{2+}}+2{{e}^{-}}\xrightarrow{{}}Cu(s);\]               \[E=+0.33V\]

A)

\[-2.03V\]

B)

\[1.36V\]

C)

\[2.7V\]

D)

\[2.03V\]

View Answer
65) Which of the following does not give a white precipitate with \[AgN{{O}_{3}}\]solution?

A)

Propyne

B)

1-butyne

C)

2-butyne

D)

1-pentyne

View Answer
66) Electrode potentials of five elements A, B, C, D and E are respectively \[-1.36,-0.32,0,-1.26\] and \[-6.42\]. The reactivity order of these elements are in the decreasing order of

A)

A, D, E, B and C

B)

C, B, E, D and A

C)

B, D, E, A and C

D)

C, A, E, D and B

View Answer
67) Which does not have carboxylic group?

A)

Benzoic acid

B)

Lactic acid

C)

Picric acid

D)

Aspirin

View Answer
68) Which of the following has highest chlorine content?

A)

Pyrene

B)

DDT

C)

Chloral

D)

BHC

View Answer
69) Acetamide and \[NaOBr/O{{H}^{-}}\] produce

A)

ethanamide

B)

methanamine

C)

ethanamine

D)

formic acid

View Answer
70) Vitamin \[{{B}_{12}}\]contains

A)

\[Co(III)\]

B)

\[Zn(II)\]

C)

v

D)

\[Fe(II)\]

View Answer
71) Which of the following is maximum basic?

A)

\[{{({{C}_{2}}{{H}_{5}})}_{2}}NH\]

B)

\[{{(C{{H}_{3}})}_{2}}NH\]

C)

\[{{({{C}_{2}}{{H}_{5}})}_{3}}N\]

D)

\[{{C}_{2}}{{H}_{5}}N{{H}_{2}}\]

View Answer
72) Calcium carbide on hydrolysis form

A)

ethane

B)

ethylene

C)

methane

D)

acetylene

View Answer
73) Collins reagent is

A)

\[Mn{{O}_{2}}/HCl\]

B)

\[Mn{{O}_{4}}/{{C}_{5}}{{H}_{5}}N\]

C)

\[{{K}_{2}}C{{r}_{2}}{{O}_{7}}/{{H}_{2}}S{{O}_{4}}\]

D)

\[C{{r}_{2}}{{O}_{3}}/2{{C}_{5}}{{H}_{5}}N\]

View Answer
74) General formula of paraffin is

A)

\[{{C}_{n}}{{H}_{2n}}\]

B)

\[{{C}_{n}}{{H}_{2n-2}}\]

C)

\[{{C}_{n}}{{H}_{2n+2}}\]

D)

\[{{C}_{2n}}{{H}_{2n}}\]

View Answer
75) Which of the following does not give iodoform reaction?

A)

\[PhCOC{{H}_{3}}\]

B)

\[C{{H}_{3}}C{{H}_{2}}OH\]

C)

\[C{{H}_{3}}OH\]

D)

\[C{{H}_{3}}CHO\]

View Answer
76) The reaction,\[C{{H}_{2}}=CHC{{H}_{3}}+HBr\xrightarrow{{}}C{{H}_{3}}CHBrC{{H}_{3}}\]is a type of

A)

electrophilic addition reaction

B)

nucleophilic addition reaction

C)

free radical addition reaction

D)

electrophilic substitution reaction

View Answer
77) Which of the following aldehyde is most reactive towards nucleophilic addition reaction?

A)

\[HCHO\]

B)

\[C{{H}_{3}}CHO\]

C)

\[{{C}_{2}}{{H}_{5}}PHO\]

D)

\[{{C}_{6}}{{H}_{5}}CHO\]

View Answer
78) An. unknown compound has molar mass\[240g/mol\] . Its empirical formula is \[C{{H}_{2}}O\] then its molecular formula will be

A)

\[{{C}_{4}}{{H}_{8}}{{O}_{4}}\]

B)

\[{{C}_{12}}{{H}_{22}}{{O}_{12}}\]

C)

\[{{C}_{6}}{{H}_{12}}{{O}_{6}}\]

D)

\[{{C}_{8}}{{H}_{16}}{{O}_{8}}\]

View Answer
79) Which of the following give \[{{H}_{2}}\] gas with Na?

A)

\[C{{H}_{4}}\]

B)

\[{{C}_{2}}{{H}_{6}}\]

C)

\[{{C}_{2}}{{H}_{4}}\]

D)

\[{{C}_{2}}{{H}_{2}}\]

View Answer
80) Phenol when treated with phthalic anhydride in presence of cone. \[{{H}_{2}}S{{O}_{4}}\] forms X which produces pink colour on reaction with base. The compound X is

A)

benzene sulphonic acid

B)

Phenolphthalene

C)

salicylic acid

D)

nitrophenol

View Answer
81) Blue vitriol has

A)

ionic bond

B)

hydrogen bond

C)

coordinate bond

D)

All of the above

View Answer
82) According to MOT, \[{{C}_{2}}\] molecule has

A)

one a and one n bond

B)

only two n bonds

C)

only two a bonds

D)

one o and two n bonds

View Answer
83) What is wrong about \[CO_{3}^{2-}\] ion ?

A)

It has planar structure

B)

It has one coordinate bond

C)

It has three resonating structures

D)

Hydrolysis of \[CO_{3}^{2-}\] ion gives basic solution

View Answer
84) Which of the following is most polar?

A)

\[C{{H}_{3}}Cl\]

B)

\[C{{H}_{3}}F\]

C)

\[C{{H}_{3}}Br\]

D)

\[C{{H}_{3}}I\]

View Answer
85) Which of the following will furnish \[F{{e}^{3+}}\] ions in solution?

A)

\[F{{e}_{4}}{{[Fe{{(CN)}_{6}}]}_{3}}\]

B)

\[{{(N{{H}_{4}})}_{2}}S{{O}_{4}}.FeS{{O}_{4}}.6{{H}_{2}}O\]

C)

\[F{{e}_{3}}{{[Fe{{(CN)}_{6}}]}_{2}}\]

D)

\[{{[Fe{{(CN)}_{6}}]}^{3-}}\]

View Answer
86) When \[KMn{{O}_{4}}\]reacts with acidified \[FeS{{O}_{4}}\]

A)

only \[FeS{{O}_{4}}\] is oxidized

B)

only \[KMn{{O}_{4}}\] is oxidized

C)

\[FeS{{O}_{4}}\] is oxidised and \[KMn{{O}_{4}}\] is reduced

D)

None of the above

View Answer
87) Which of the following electronic configuration corresponds to the highest value of ionisation potential?

A)

\[[Xe]6{{s}^{2}}\]

B)

\[[Ar]4{{s}^{2}}3{{d}^{10}}\]

C)

\[1{{s}^{2}}\]

D)

\[[Rn]7{{s}^{2}}6{{d}^{1}}5{{f}^{14}}\]

View Answer
88) An element with atomic number 112 has been made recently. It should be

A)

an actinide

B)

a transition metal

C)

a noble gas

D)

a lanthanide

View Answer
89) Product of the following reaction is\[A{{l}_{4}}{{C}_{3}}+{{D}_{2}}O\xrightarrow{{}}\]

A)

\[Al{{(OD)}_{3}}+C{{D}_{4}}\]

B)

\[Al{{(OD)}_{2}}+C{{D}_{4}}\]

C)

\[Al{{(OD)}_{4}}+C{{D}_{4}}\]

D)

\[Al{{(OD)}_{3}}+CD\]

View Answer
90) Which is maximum basic?

A)

\[N{{F}_{3}}\]

B)

\[NC{{l}_{3}}\]

C)

\[NB{{r}_{3}}\]

D)

\[N{{I}_{3}}\]

View Answer
91) Which is not a protein?

A)

Alpha amylase

B)

Ribozyme

C)

Histidine kinase

D)

Nitrogenase

View Answer
92) Black pepper is

A)

herb

B)

shrub

C)

tree

D)

climber

View Answer
93) Which of the followings is not caused by deficiency of mineral ?

A)

Chlorosis

B)

Etiolation

C)

Shortening of intemodes

D)

Necrosis

View Answer
94) Retrovirus have genetic material

A)

DNA only

B)

RNA only

C)

DNA or RNA only

D)

either DNA or RNA only

View Answer
95) In Funaria calyptra arises from

A)

capsule

B)

antheridium

C)

columella

D)

archegonium

View Answer
96) DCMU

A)

inhibits PS-I

B)

inhibits PS-II

C)

destroy chloroplast

D)

inhibits oxidative phosphoryladon

View Answer
97) Prions consist mainly of

A)

protein

B)

DNA

C)

RNA

D)

Both (b) and (c)

View Answer
98) \[N{{H}_{3}}\]releases from

A)

photorespiration

B)

dark respiration

C)

CAM

D)

All of these

View Answer
99) According to Kyoto protocol the major nations abide to reduce concentration of greenhouse gases by.

A)

2008

B)

2010

C)

2012

D)

2018

View Answer
100) Hela cells used in cell biology are

A)

cancerous cells grown in cancer research laboratory

B)

cervical cancer cell derivatives

C)

Both (a) and (b)

D)

None of the above

View Answer
101) In 2002 AD according to research the concentration of CFC reached to

A)

368 ppm

B)

1750 ppb

C)

261 ppt

D)

326 ppb

View Answer
102) Which of the following causes abortion in ladies?

A)

Viruses

B)

Bacteria

C)

Mycoplasma

D)

None of these

View Answer
103) Which of the following is a prokaryote?

A)

Amoeba

B)

Spirogyra

C)

Bacteria

D)

Chlamydomonas

View Answer
104) Ginger is an underground stem. It is distinguished from root because

A)

it lacks chlorophyll

B)

it stores food

C)

it has nodes and intemodes

D)

it has xylem and vessels

View Answer
105) DNA replication includes

A)

DNA ligase

B)

DNA polymerase and ligase

C)

RNA polymerase

D)

All of the above

View Answer
106) During DNA replication in prokaryotes DNA is anchored to

A)

chromosome

B)

mesosome

C)

nucleolus

D)

ribosome

View Answer
107) Stain used by Feulgen to stain DNA is

A)

janus green

B)

basic fuschin

C)

crystal violet

D)

methylene blue

View Answer
108) The mineral present in cell wall is

A)

Na

B)

Ca

C)

K

D)

Mg

View Answer
109) Male gamete in angiosperm is produced by

A)

Generative cell

B)

Microspore cell

C)

Vegetative cell

D)

Tube cell

View Answer
110) Meristematic tissue in vascular bundle is

A)

phellem

B)

procambium

C)

interfasicular cambium

D)

fasicular cambium

View Answer
111) Study of Ecology of population is called

A)

Autecology

B)

Synecology

C)

Ecotype

D)

Demecology

View Answer
112) Dwarf wheat was developed by

A)

M S Swaminathan

B)

Vavilov

C)

Borlaug

D)

B D Singh

View Answer
113) A pure tall and a pure dwarf plant were crossed to produce offsprings. Offsprings were self-crossed, then find out the ratio between true breeding tall to true breeding dwarf ?

A)

1 : 1

B)

3 :1

C)

2 : 1

D)

1 : 2 : 1

View Answer
114) Which of the following plant is LDP ?

A)

Xanthium

B)

Soybean

C)

Wheat

D)

Tobacco

View Answer
115) Genophore term was coined by Hans R is for

A)

genetic material of virus

B)

stack on which spore originated

C)

bacterial chromosome

D)

fungal chromosome

View Answer
116) Cross between unrelated group of organisms is called

A)

hybrid

B)

test cross

C)

back cross

D)

(d hleterosis

View Answer
117) Which of the following is used as a best genetic vector in plants?

A)

Bacillus thurengiensis

B)

Agrobacterium tumifaciens

C)

Pseudomonas putida

D)

All of the above

View Answer
118) Genetics term was proposed by

A)

Mendel

B)

Bateson

C)

Morgan

D)

Johannson

View Answer
119) One gene-one enzyme hypothesis of Beadle and Tatum was experimentally proved on,

A)

Saccaromyces

B)

Neurospora crassa

C)

Lathyrus odoratus

D)

Claviceps

View Answer
120) Cytochrome oxidase is a/an

A)

exoenzyme

B)

endoenzyme

C)

proenzyme

D)

coenzyme

View Answer
121) Which of the following is not a pyrimidine ?

A)

Thymine

B)

Uracil

C)

Guanine

D)

Cytosine

View Answer
122) Fusiform initial forms

A)

vascular rays

B)

ray parenchyma

C)

tracheary elements

D)

primary phloem

View Answer
123) Which organelle is present in higher number in secretory cells?

A)

Dictyosome

B)

ER

C)

Lysosome

D)

Vacuole

View Answer
124) Bio-indicators are used for

A)

oxygen demand

B)

air pollution

C)

mineral present

D)

All of the above

View Answer
125) Phototropism is due to the hormone

A)

IAA

B)

GA

C)

2, 4-D

D)

cytokinin

View Answer
126) DNA is acidic due to

A)

sugar

B)

phosphoric acid

C)

purine

D)

pyrimidine

View Answer
127) Highest number of enzymes is found in

A)

lysosome

B)

chloroplast

C)

mitochondria

D)

peroxisome

View Answer
128) Psammophytes are plants that grow where soil is

A)

alkaline

B)

sandy

C)

acidic

D)

alluvial

View Answer
129) Nitrifying bacteria are able to

A)

convert atmospheric nitrogen into soluble forms

B)

convert ammonia to nitrate

C)

ammonia to nitrogen

D)

nitrate to nitrogen

View Answer
130) Huxley is father of

A)

classical taxonomy

B)

artificial taxonomy

C)

neo-taxonomy

D)

adansonian taxonomy

View Answer
131) RNA is not found in

A)

chromosome

B)

plasmalemma

C)

nucleolus

D)

ribosome

View Answer
132) Systema Naturae is written by

A)

Linnaeus

B)

Aristotle

C)

Hippocrates

D)

Darwin

View Answer
133) Binomial nomenclature was first issued in

A)

Systema Naturae

B)

Genera Plantarum

C)

Genera Animalium

D)

Historia Plantarum

View Answer
134) Number of chromosome in an angiospermic plant is 14, then the number of chromosome in synergid cells will be

A)

14

B)

7

C)

23

D)

21

View Answer
135) In September 2001, which of the following was used as a bioweapon agent in America ?

A)

botulinum

B)

anthrax (Bacillus anthracis)

C)

polio virus

D)

AIDS virus

View Answer
136) Formation of RNA on DNA template is called

A)

transduction

B)

transformation

C)

transcription

D)

transfer

View Answer
137) Presence of tail in a child is an example of

A)

atavism

B)

divergent evolution

C)

convergent evolution

D)

mutation

View Answer
138) To confirm ELISA for AIDS we used

A)

western blotting

B)

northern blotting

C)

southern blotting

D)

eastern blotting

View Answer
139) Action potential is generated by

A)



B)



C)



D)



View Answer
140) Hot dilute soup was given by

A)

Oparin

B)

Haldane

C)

Urey

D)

None of these

View Answer
141) Aqueous and vitreous humour are divided by

A)

lens

B)

iris

C)

retina

D)

optic nerve

View Answer
142) Gene for colourblindness is located on

A)

Y chromosome

B)

13th chromosome

C)

X chromosome

D)

21st chromosome

View Answer
143) Species going to extinct due to low reproductive rate is

A)

lion

B)

bald eagle

C)

giant panda

D)

island sp.

View Answer
144) Indian rhinoceros are protected in

A)

Gir Forest

B)

Kaziranga National Park

C)

Bandipur National Park

D)

Ranthambore National Park

View Answer
145) Mitotic spindle have main protein

A)

tubulin

B)

myosin

C)

tropomyocin

D)

dynein

View Answer
146) Adrenal gland is derived from

A)

ectoderm

B)

mesoderm

C)

ectoderm and mesoderm

D)

ectoderm and endoderm

View Answer
147) Accessory sexual character in female is promoted by

A)

androgen

B)

progesterone

C)

estrogen

D)

testosterone

View Answer
148) X-lipked recessive gene is

A)

always expressed in male

B)

always expressed in female

C)

lethal

D)

sub lethal

View Answer
149) Hbisa

A)

reproductive pigment

B)

respiratory pigment

C)

carbohydrate

D)

fat

View Answer
150) Bile secretion is proportional to the concentration of

A)

protein

B)

fat

C)

carbohydrate

D)

None of these

View Answer
151) Ligament is mainly made up of

A)

reticulin

B)

elastin

C)

myosin

D)

collagen

View Answer
152) Secretion of pancreatic juice is stimulated by

A)

gastrin

B)

secretin

C)

enterogasteron

D)

enterokinase

View Answer
153) Out of 64 codons only 61 codes for the 20 different amino acids. This character of genetic code is called

A)

degeneracy

B)

non ambiguous nature

C)

redundancy

D)

overlapping

View Answer
154) Crossing over occurs in

A)

zygotene

B)

leptotene

C)

pachytene

D)

diplotene

View Answer
155) Connection between axon and dendrite is

A)

synapse

B)

synapsis

C)

desmosome

D)

tight junction

View Answer
156) Irregular nuclei is present in

A)

neutrophils

B)

basophils

C)

eosinophils

D)

monocytes

View Answer
157) Mesozoic era is golden period of

A)

reptiles

B)

Mollusca

C)

fishes

D)

amphibians

View Answer
158) Fossil found in Mandia district of MP is

A)

260 million years old

B)

100 million years old

C)

50 million years old

D)

20 million years old

View Answer
159) Which hormone is responsible for milk ejection after the birth of the baby ?

A)

Oxytocin

B)

Progesterone

C)

Prolactin

D)

Estrogen

View Answer
160) Hamburger shift is also known as

A)

bicarbonate shift

B)

chloride shift

C)

potassium shift

D)

All of the above

View Answer
161) Bundle of His are

A)

nervous tissue supplied to ventricles

B)

nervous tissue supplied to heart

C)

muscular tissue supplied to ventricle

D)

muscular tissue supplied to heart

View Answer
162) Number of bones in skull is

A)

26

B)

28

C)

107

D)

29

View Answer
163) Cell theory was proposed by

A)

Virchow

B)

Schleiden and Schwann

C)

Robert Hooke

D)

B McClintock

View Answer
164) Viroids cause

A)

tobacco mosaic

B)

tulip yellow mosaic

C)

cauliflower mosaic

D)

potato spindle mosaic

View Answer
165) Who for the first time developed electron microscope?

A)

Knoll and Ruska

B)

Rudolf and Kolliker

C)

Robert Hooke

D)

Swanson

View Answer
166) Represser protein is produced by

A)

regulator gene

B)

operator gene

C)

structural gene

D)

promoter gene

View Answer
167) Nucleated RBC is found in

A)

man

B)

rat

C)

rabbit

D)

frog

View Answer
168) We know that the thyroxine controls metabolism in body. An autoimmune disease where the bodys own antibodies attack the cells of the thyroid is called

A)

Hyperthyroidism

B)

Hashimotos disease

C)

Graves disease

D)

Turner syndrome

View Answer
169) Acid hydrolase is found in

A)

Golgi body

B)

ER

C)

Lysosome

D)

Vacuole

View Answer
170) Autonomic nervous system effects on

A)

reflex actions

B)

sensory organs

C)

internal organ

D)

None of these

View Answer
171) Schizogony occurs in

A)

RBC of human

B)

intestine of parasite

C)

liver of human

D)

liver of parasite

View Answer
172) Haemophilia is due to absence of

A)

factor-VI

B)

factor-VII

C)

factor-VIII

D)

factor-IX

View Answer
173) Which of these is a dominant factor ?

A)

Rh factors

B)

Haemophilia

C)

Albinism

D)

Colour blindness

View Answer
174) Sertoli cells are found in testis. These cells are

A)

nurse cell

B)

reproductive cell

C)

receptor cell

D)

None of these

View Answer
175) Hinge joint is present between

A)

femur and ulna

B)

humerus and ulna

C)

femur and pectoral girdle

D)

femur and pelvic girdle

View Answer
176) Which is immortal ?

A)

Plasma cell

B)

Germ cell

C)

Brain cell

D)

Kidney cell

View Answer
177) After a deep inspiration and maximum expiration, the capacity of lungs is known as

A)

vital capacity

B)

tidal volume

C)

IRV

D)

ERV

View Answer
178) Cryptorchidism is a condition in which

A)

testis does not descend into scrotal sac

B)

sperm is not found

C)

male hormones are not reactive

D)

ovaries are removed

View Answer
179) Which one is a laevorotatory sugar ?

A)

Sucrose

B)

Glucose

C)

Fructose

D)

None of these

View Answer
180) Which one is the sweetest sugar?

A)

Glucose

B)

Fructose

C)

Sucrose

D)

Maltose

View Answer

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