Solved papers for Uttarakhand PMT Uttarakhand PMT Solved Paper-2008

done Uttarakhand PMT Solved Paper-2008

  • question_answer1) How many seconds are there in a light fermi?

    A) \[{{10}^{-15}}s\]

    B) \[3.0\times {{10}^{8}}s\]

    C) \[3.33\times {{10}^{-24}}s\]

    D) \[3.3\times {{10}^{-7}}s\]

    View Answer play_arrow
  • question_answer2) A machine is delivering constant power to drive a body along a straight line. What is the relation between the distance travelled by the body against time?

    A) \[{{s}^{2}}\propto {{t}^{3}}\]

    B) \[{{s}^{2}}\propto {{t}^{-3}}\]

    C) \[{{s}^{2}}\propto {{t}^{2}}\]

    D) \[s\propto {{t}^{3}}\]

    View Answer play_arrow
  • question_answer3) The square of resultant of two equal forces is three times their product. Angle between the forces is

    A) \[\pi \]

    B) \[\frac{\pi }{2}\]

    C) \[\frac{\pi }{4}\]

    D) \[\frac{\pi }{3}\]

    View Answer play_arrow
  • question_answer4) An object placed on a ground is in stable equilibrium. If the object is given a slight push then initially the position of centre of gravity

    A) moves nearer to ground

    B) rises higher above the ground

    C) remains as such

    D) may remain at same level

    View Answer play_arrow
  • question_answer5) How much work must be done by a force on 50 kg body in order to accelerate it from rest to 20 m/s in 10 s?

    A) \[{{10}^{3}}J\]

    B) \[{{10}^{4}}J\]

    C) \[2\times {{10}^{3}}J\]

    D) \[4\times {{10}^{4}}J\]

    View Answer play_arrow
  • question_answer6) Moment of inertia of circular loop of radius R about the axis of rotation parallel to horizontal diameter at a distance R/2 from it is

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

    B) \[\frac{1}{2}M{{R}^{2}}\]MR

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

    D) \[\frac{3}{4}M{{R}^{2}}\]

    View Answer play_arrow
  • question_answer7) What will happen to the weight of the body at the south pole, if the earth stops rotating about its polar axis?

    A) No change

    B) Increases

    C) Decreases but does not become zero

    D) Reduces to zero

    View Answer play_arrow
  • question_answer8) A beam of metal supported at the two ends is loaded at tlie centre. The depression at the centre is proportional to

    A) \[{{Y}^{2}}\]

    B) \[Y\]

    C) \[\frac{1}{Y}\]

    D) \[\frac{1}{{{Y}^{2}}}\]

    View Answer play_arrow
  • question_answer9) A common hydrometer reads specific gravity of liquids. Compared to the 1.6 mark of the stem the mark 1.5 will be

    A) upwards

    B) downwards

    C) in the same place

    D) may be upward or downward depending upon the hydrometer

    View Answer play_arrow
  • question_answer10) A balloon contains\[500\text{ }{{m}^{3}}\]of Heat\[27{}^\circ C\]and 1 atmospheric pressure. The volume of Heat\[-3{}^\circ C\]and 0.5 atmospheric pressure will be

    A) \[700{{m}^{3}}\]

    B) \[900{{m}^{3}}\]

    C) \[1000{{m}^{3}}\]

    D) \[500{{m}^{3}}\]

    View Answer play_arrow
  • question_answer11) Which of the following is different from others?

    A) Wavelength

    B) Velocity

    C) Frequency

    D) Amplitude

    View Answer play_arrow
  • question_answer12) Two pendulums have time periods T and 5T/4. They starts SHM at the same time from the mean position. What will be the phase difference between them after the bigger pendulum completed one oscillation ?

    A) \[45{}^\circ \]

    B) \[90{}^\circ \]

    C) \[60{}^\circ \]

    D) \[30{}^\circ \]

    View Answer play_arrow
  • question_answer13) A balloon is filled with hydrogen. For sound waves, this balloon behaves like

    A) a converging lens

    B) a diverging lens

    C) a concave mirror

    D) None of the above

    View Answer play_arrow
  • question_answer14) Each of the two point charges are doubled and their distance is halved. Force of interaction becomes n times, where n is

    A) 4

    B) 1

    C) 1/16

    D) 16

    View Answer play_arrow
  • question_answer15) Two soap bubbles have radii in the ratio of 2:1. What is the ratio of excess pressures inside them?

    A) 1: 2

    B) 1: 4

    C) 2:1

    D) 4 : 1

    View Answer play_arrow
  • question_answer16) The phenomenon of Brownian movement may be taken as evidence of

    A) kinetic theory of matter

    B) EMT of radiation

    C) corpuscular theory of light

    D) photoelectric phenomenon

    View Answer play_arrow
  • question_answer17) Two sound waves of slightly different frequencies propagating in the same direction produce beats due to

    A) interference

    B) diffraction

    C) reflection

    D) refraction

    View Answer play_arrow
  • question_answer18) An ice block floats in a liquid whose density is less than water. A part of block is outside the liquid. When whole of ice has melted, the liquid level will

    A) rise

    B) go down

    C) remain same

    D) first rise then go down

    View Answer play_arrow
  • question_answer19) Two bodies of different masses of 2 kg and 4 kg moving with velocities 2 m/s and 10 m/s towards each other due to mutual gravitational attraction. What is the velocity of their centre of mass?

    A) 5 m/s

    B) 6 m/s

    C) 8 m/s

    D) Zero

    View Answer play_arrow
  • question_answer20) Given that the displacement of an oscillating particle is given by\[y=Asin(B~+Ct+D)\]. The dimensional formula for (ABCD) is

    A) \[[{{M}_{0}}{{L}^{-1}}{{T}^{0}}]\]

    B) \[[M{{\,}^{0}}{{L}^{0}}{{T}^{-1}}]\]

    C) \[[{{M}^{0}}{{L}^{-1}}{{T}^{-1}}]\]

    D) \[[{{M}^{0}}{{L}^{0}}{{T}^{0}}]\]

    View Answer play_arrow
  • question_answer21) Two waves having intensities in the ratio of 9:1 produce interference. The ratio of maximum to minimum intensity is equal:

    A) 10 : 8

    B) 9 : 1

    C) 4 :1

    D) 2 : 1

    View Answer play_arrow
  • question_answer22) Four wires each of same length, diameter as. materials are connected to each other to form square. If the resistance of each wire is R. then equivalent resistance across the opposite corners is

    A) R

    B) R/2

    C) R/4

    D) None of these

    View Answer play_arrow
  • question_answer23) An electric motor runs on DC source of emf 200 V and draws a current of 10 A. If the efficiency be 40% then the resistance of armature is

    A) 20

    B) 80

    C) 120

    D) 160

    View Answer play_arrow
  • question_answer24) A capacitor having capacity of 2.0 \[\mu F\] is charged to 200 V and then the plates of the capacitor are connected to a resistance wire The heat produced in joule will be

    A) \[2\times {{10}^{-2}}\]

    B) \[4\times {{10}^{-2}}\]

    C) \[4\times {{10}^{4}}\]

    D) \[4\times {{10}^{10}}\]

    View Answer play_arrow
  • question_answer25) A voltmeter of range 2V and resistance 300\[\Omega \] cannot be converted into ammeter of range

    A) 1A

    B) 1mA

    C) 100mA

    D) 10mA

    View Answer play_arrow
  • question_answer26) If a magnet is suspended at angle\[30{}^\circ \]to the magnetic meridian, the dip needle makes angle of\[45{}^\circ \]with the horizontal. The real dip is

    A) \[{{\tan }^{-1}}(\sqrt{3/2})\]

    B) \[{{\tan }^{-1}}(\sqrt{3})\]

    C) \[{{\tan }^{-1}}(\sqrt{3/2})\]

    D) \[{{\tan }^{-1}}(2/\sqrt{3})\]

    View Answer play_arrow
  • question_answer27) Which quantity is increased in step-down transformer?

    A) Current

    B) Voltage

    C) Power

    D) Frequency

    View Answer play_arrow
  • question_answer28) The ratio of intensity at the centre of a bright fringe to the intensity at a point distant or one fourth of the distance between two successive bright fringes will be

    A) 4

    B) 3

    C) 2

    D) 1

    View Answer play_arrow
  • question_answer29) Which has more luminous efficiency?

    A) A 40 W bulb

    B) A 40 W fluorescent tube

    C) Both have same

    D) Cannot say

    View Answer play_arrow
  • question_answer30) When a ray of light enters from one medium to another, then its velocity in second medium becomes double. The maximum value of angle of incidence, so that total internal reflection may not take place will be

    A) \[60{}^\circ \]

    B) \[180{}^\circ \]

    C) \[90{}^\circ \]

    D) \[30{}^\circ \]

    View Answer play_arrow
  • question_answer31) What should be the velocity of an electron so that its momentum becomes equal to that of a photon of wavelength\[5200\overset{o}{\mathop{\text{A}}}\,\]?

    A) 700 m/s

    B) 1000 m/s

    C) 1400 m/s

    D) 2800 m/s

    View Answer play_arrow
  • question_answer32) A radioactive element has half-life period of 600 years. After 3000 years, what amount will remain?

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

    B) \[\frac{1}{16}\]

    C) \[\frac{1}{8}\]

    D) \[\frac{1}{32}\]

    View Answer play_arrow
  • question_answer33) Beyond which frequency, the ionosphere bends any incident electromagnetic radiation but do not reflect it back towards the earth?

    A) 50MHz

    B) 40MHz

    C) 30MHz

    D) 20MHz

    View Answer play_arrow
  • question_answer34) In intrinsic semiconductor at room temperature number of electrons and holes are

    A) equal

    B) zero

    C) unequal

    D) infinite

    View Answer play_arrow
  • question_answer35) The unit of thermal conductance is

    A) \[W{{K}^{-1}}\]

    B) \[J{{K}^{-1}}\]

    C) WK

    D) JK

    View Answer play_arrow
  • question_answer36) The value of P so that the vectors \[2\hat{i}-\hat{j}+\hat{k}\hat{,}+2\hat{j}-3\hat{k}\] and \[3\hat{i}+p\hat{j}+5\hat{k}\] are coplanar should be

    A) 16

    B) \[-4\]

    C) 4

    D) \[-8\]

    View Answer play_arrow
  • question_answer37) A capacitor of capacitance C has charge Q and stored energy is W. If the charge is increased to 2Q, the stored energy will be

    A) \[\frac{W}{4}\]

    B) \[\frac{W}{2}\]

    C) \[2W\]

    D) \[4W\]

    View Answer play_arrow
  • question_answer38) Pure silicon at 300 K has equal electron \[({{n}_{e}})\] and hole \[({{n}_{h}})\] concentration of\[1.5\times {{10}^{16}}{{m}^{-3}}\]. Doping by indium increases \[{{n}_{h}}\] to \[4.5\times {{10}^{22}}{{m}^{-3}}\] . The \[{{n}_{e}}\] in the doped silicon is

    A) \[9\times {{10}^{5}}\]

    B) \[5\times {{10}^{9}}\]

    C) \[2.25\times {{10}^{11}}\]

    D) \[3\times {{10}^{19}}\]

    View Answer play_arrow
  • question_answer39) A cylindrical conductor is placed near another positively charged conductor. The net charge acquired by the cylindrical conductor will be

    A) positive only

    B) negative only

    C) zero

    D) either positive or negative

    View Answer play_arrow
  • question_answer40) If the unit of force is 1 kilo newton, the length is 1 km and time 100 s, what will be the unit of mass?

    A) 1,000kg

    B) 1kg

    C) 10,000kg

    D) 100kg

    View Answer play_arrow
  • question_answer41) Ethyl acetate is obtained when methyl magnesium bromide reacts with

    A) ethyl formate

    B) ethyl chloroformate

    C) acetyl chloride

    D) carbon dioxide

    View Answer play_arrow
  • question_answer42) The most stable hydride is

    A) \[N{{H}_{3}}\]

    B) \[P{{H}_{3}}\]

    C) \[As{{H}_{3}}\]

    D) \[Sb{{H}_{3}}\]

    View Answer play_arrow
  • question_answer43) The ratio of amounts of\[{{H}_{2}}S\]needed to precipitate all the metal ions from 100 mL of 1 M\[AgN{{O}_{3}}\]and 100 mL of 1M\[CuS{{O}_{4}}\]will be

    A) \[1:1\]

    B) \[1:2\]

    C) \[2:1\]

    D) None of these

    View Answer play_arrow
  • question_answer44) If the electronegativity difference between two atoms A and B is 2.0, then the percentage of co-valent character in the molecule is

    A) 54%

    B) 46%

    C) 23%

    D) 72%

    View Answer play_arrow
  • question_answer45) Which of the following reaction defines\[\Delta H_{f}^{o}\]?

    A) \[{{C}_{(diamond)}}+{{O}_{2}}(g)\xrightarrow[{}]{{}}C{{O}_{2}}(g)\]

    B) \[\frac{1}{2}{{H}_{2}}(g)+\frac{1}{2}{{F}_{2}}(g)\xrightarrow[{}]{{}}HF(g)\]

    C) \[{{N}_{2}}(g)+3{{H}_{2}}(g)\xrightarrow[{}]{{}}2N{{H}_{3}}(g)\]

    D) \[CO(g)+\frac{1}{2}{{O}_{2}}(g)\xrightarrow[{}]{{}}C{{O}_{3}}(g)\]

    View Answer play_arrow
  • question_answer46) Formaldehyde polymerizes to form glucose according to the reaction \[6HCHO{{C}_{6}}{{H}_{12}}{{O}_{6}}\] The theoretically computed equilibrium constant for this reaction is found to be\[6\times {{10}^{22}}\]. If 1 M solution of glucose dissociates according to the above equilibrium, the concentration of formaldehyde in the solution will be

    A) \[1.6\times {{10}^{-2}}M\]

    B) \[1.6\times {{10}^{-4}}M\]

    C) \[1.6\times {{10}^{-6}}M\]

    D) \[1.6\times {{10}^{-8}}M\]

    View Answer play_arrow
  • question_answer47) The electronic configuration of a dipositive ion\[{{M}^{2+}}\]is 2, 8, 14 and its mass number is 56. The number of neutrons present is

    A) 32

    B) 42

    C) 30

    D) 34

    View Answer play_arrow
  • question_answer48) If X is the total number of collisions which a gas molecule register with others per unit time under particular conditions, then the collision frequency of the gas containing JV molecules per unit volume is

    A) X/N

    B) NX

    C) 2 NX

    D) NX/2

    View Answer play_arrow
  • question_answer49) A hypothetical reaction\[{{A}_{2}}+{{B}_{2}}\to 2AB\]follows the mechanism as given below, \[{{A}_{2}}\rightleftharpoons A+A\] (fast) \[A+{{B}_{2}}\xrightarrow[{}]{{}}AB+B\] (slow) \[A+B\xrightarrow[{}]{{}}AB\] (fast) The order of the overall reaction is

    A) 2

    B) 1

    C) 11

    D) 0

    View Answer play_arrow
  • question_answer50) The mass of helium atom of mass number 4 is 4.0026 amu, while that of the neutron and proton are 1.0087 and 1.0078 respectively on the same scale. Hence, the nuclear binding energy per nucleon in the .helium atom is nearly

    A) 5MeV

    B) 7MeV

    C) 10MeV

    D) 14MeV

    View Answer play_arrow
  • question_answer51) Which of the following statements is correct? Dielectric constant of\[{{H}_{2}}{{O}_{2}}\]

    A) increases with dilution

    B) decreases with dilution

    C) is unaffected on dilution

    D) None of the above

    View Answer play_arrow
  • question_answer52) For the square planar complex [M] (where, M= central metal and a, b, c and d are monodentate ligands), the number of possible geometrical isomers are

    A) 1

    B) 2

    C) 3

    D) 4

    View Answer play_arrow
  • question_answer53) Potash alum dissolves in water to give a/an

    A) acidic solution of\[{{H}_{2}}S{{O}_{4}}\]

    B) alkaline solution

    C) acidic solution of\[HCl\]

    D) neutral solution

    View Answer play_arrow
  • question_answer54) The discovery of which of the following group of elements gave death blow to the Newlands law of octaves?

    A) Inert gases

    B) Alkaline earths

    C) Rare earths

    D) Actinides

    View Answer play_arrow
  • question_answer55) Vant Hoff factor more than unity indicates that the solute in solution has

    A) dissociated

    B) associated

    C) Both [a] and [b]

    D) cannot say anything

    View Answer play_arrow
  • question_answer56) How many number of atoms are there in a cube based unit cell having one atom on each corner and two atoms on each body diagonal of cube?

    A) 8

    B) 6

    C) 4

    D) 9

    View Answer play_arrow
  • question_answer57) Bleeding due to a cut can be stopped by applying ferric chloride solution in the laboratory. This is due to

    A) co-agulation of negatively charged blood particles by\[F{{e}^{3+}}\]ions

    B) co-agulation of positively charged blood particles by CF ions

    C) reaction taking place between ferric ions and the haemoglobin forming a complex

    D) common element, iron, in both\[FeC{{l}_{3}}\]and haemoglobin.

    View Answer play_arrow
  • question_answer58) Which one of the following solutions will have highest conductivity?

    A) \[0.1\text{ }M\text{ }C{{H}_{3}}COOH\]

    B) \[0.1\,M\,NaCl\]

    C) \[0.1\,M\,KN{{O}_{3}}\]

    D) \[0.1\,M\,HCl\]

    View Answer play_arrow
  • question_answer59) One of the following metals forms a volatile compound and this property is taken advantage for its extraction. This metal is

    A) iron

    B) nickel

    C) cobalt

    D) tungsten

    View Answer play_arrow
  • question_answer60) If\[N{{a}^{+}}\]is larger than\[M{{g}^{2+}}\]ion an\[{{S}^{2-}}\]ion is larger than\[C{{l}^{-}}\]ion, which of the following will be stable soluble in water?

    A) Sodium chloride

    B) Sodium sulphide

    C) Magnesium chloride

    D) Magnesium sulphide

    View Answer play_arrow
  • question_answer61) Impurities of Cu and Ag from gold are removed by

    A) boiling impure gold with dil.\[{{H}_{2}}S{{O}_{4}}\]

    B) boiling impure gold with cone.\[{{H}_{2}}S{{O}_{4}}\]

    C) electrolytically

    D) Both [b] and [c]

    View Answer play_arrow
  • question_answer62) Which of the following salt would give\[S{{O}_{2}}\] with hot and dil.\[{{H}_{2}}S{{O}_{4}}\]and also decolourises \[B{{r}_{2}}\]water ?

    A) \[N{{a}_{2}}S{{O}_{3}}\]

    B) \[NaHS{{O}_{4}}\]

    C) \[N{{a}_{2}}S{{O}_{4}}\]

    D) \[N{{a}_{2}}S\]

    View Answer play_arrow
  • question_answer63) If two compounds have the same empirical formula but different molecular formulae, they must have

    A) different percentage composition

    B) different molecular weights

    C) same viscocity

    D) same vapour density

    View Answer play_arrow
  • question_answer64) Among the following which one has weakest carbon-halogen bond?

    A) Benzyl bromide

    B) Bromobenzene

    C) Vinyl bromide

    D) Benzyl chloride

    View Answer play_arrow
  • question_answer65) Petrochemicals can be used to prepare

    A) synthetic fibres

    B) pesticides

    C) plastics

    D) All of these

    View Answer play_arrow
  • question_answer66) tert-butyl methyl ether on heating with anhydrous HI in ether gives

    A) \[C{{H}_{3}}OH+{{(C{{H}_{3}})}_{3}}Cl\]

    B) \[C{{H}_{3}}I+{{(C{{H}_{3}})}_{3}}COH\]

    C) \[C{{H}_{3}}I+{{(C{{H}_{3}})}_{3}}Cl\]

    D) None of the above

    View Answer play_arrow
  • question_answer67) The correctly reported answer of the addition of 4.523, 2.3 and 6.24 will have significant figures

    A) two

    B) three

    C) four

    D) five

    View Answer play_arrow
  • question_answer68) What happens if\[CC{{l}_{4}}\]is treated with\[AgN{{O}_{3}}\]?

    A) A white ppt. of\[AgCl\]will form

    B) \[N{{O}_{2}}\] will be evolved

    C) \[CC{{l}_{4}}\]will dissolve in\[AgN{{O}_{3}}\]

    D) Nothing will happen

    View Answer play_arrow
  • question_answer69) \[^{23}Na\] is more stable isotope of Na. Find out the process by which\[_{11}^{24}Na\]can undergo radioactive decay

    A) \[{{\beta }^{-}}\]emission

    B) \[\alpha -\]emission

    C) \[{{\beta }^{+}}\] emission

    D) K electron capture

    View Answer play_arrow
  • question_answer70) The heat of combustion of solid benzoic acid at constant volume is\[-321.30\text{ }kJ\] at\[27{}^\circ C\]. The heat of combustion at constant pressure is

    A) \[-321.30-300R\]

    B) \[-321.30+300R\]

    C) \[-321.30-150R\]

    D) \[-321.30+900\text{ }R\]

    View Answer play_arrow
  • question_answer71) In which of the following compounds\[-OH\] group is least reactive?

    A)

    B)

    C)

    D) All are equally reactive.

    View Answer play_arrow
  • question_answer72) lodoform is obtained when ethanol is heated with

    A) \[KI\]and aq KOH

    B) \[{{I}_{2}}\]and aq\[KOH\]

    C) \[{{I}_{2}}/\]aq\[KI\]

    D) \[HI\]and\[HI{{O}_{3}}\]

    View Answer play_arrow
  • question_answer73) The total number of acylic isomers including the stereoisomers (geometrical and optical), with the molecular formula\[{{C}_{4}}{{H}_{7}}Cl\]is

    A) 12

    B) 11

    C) 10

    D) 9

    View Answer play_arrow
  • question_answer74) The alkyl halides that can be made by free radical halogenation of alkanes are

    A) \[RCl,\]and\[RBr\]but not RP or\[RI\]

    B) \[RF,RCl\]and\[RBr\]but not\[RI\]

    C) \[RF,\text{ }RCl,\text{ }RBr,\text{ }RI\]

    D) \[RF,RCl\]and\[RI\]but\[RBr\]

    View Answer play_arrow
  • question_answer75) Silica is a/an

    A) acidic flux only

    B) gangueonly

    C) basic flux only

    D) both gangue and acidic flux

    View Answer play_arrow
  • question_answer76) The nodes present in\[3p-\]orbitals are

    A) one spherical, one planar

    B) two spherical

    C) two planar

    D) one planar

    View Answer play_arrow
  • question_answer77) The number of\[\alpha -\]and\[\beta -\]particles emitted in nuclear reaction\[_{90}T{{h}^{228}}{{\xrightarrow[{}]{{}}}_{83}}B{{i}^{212}}\]are respectively

    A) 4, 1

    B) 3, 7

    C) 8, 1

    D) 4, 7

    View Answer play_arrow
  • question_answer78) Two bottles A and B contains 1 M and 1m aqueous solution of sulphuric acid respectively

    A) A is more concentrated than B

    B) B is more concentrated than A

    C) concentration of A is equal to concentration of B

    D) it is not possible to compare the concentrations

    View Answer play_arrow
  • question_answer79) A salt on treatment with dil.\[HCl\] gives a pungent smelling gas and a yellow precipitate. The salt gives green flame test and a yellow precipitate with potassium chromate the salt is

    A) \[NiS{{O}_{4}}\]

    B) \[Ba{{S}_{2}}{{O}_{3}}\]

    C) \[Pb{{S}_{2}}{{O}_{3}}\]

    D) \[CuS{{O}_{4}}\]

    View Answer play_arrow
  • question_answer80) Which of the oxide of manganese is amphoteric?

    A) \[Mn{{O}_{2}}\]

    B) \[M{{n}_{2}}{{O}_{3}}\]

    C) \[M{{n}_{2}}{{O}_{7}}\]

    D) \[MnO\]

    View Answer play_arrow
  • question_answer81) Which of the following alkenes is most reactive towards cationic polymerization?

    A) \[C{{H}_{2}}=CHC{{H}_{3}}\]

    B) \[{{H}_{2}}C=CHCl\]

    C) \[{{H}_{2}}C=CH{{C}_{6}}{{H}_{5}}\]

    D) \[{{H}_{2}}C=CHC{{O}_{2}}C{{H}_{3}}\]

    View Answer play_arrow
  • question_answer82) An organic compound,\[{{C}_{3}}{{H}_{6}}O\]does not give a precipitate with 2, 4-dinitrophenyl hydrazine reagent and does not react with metallic sodium. It could be

    A) \[C{{H}_{3}}C{{H}_{2}}CHO\]

    B) \[C{{H}_{2}}=CHC{{H}_{2}}OH\]

    C) \[C{{H}_{3}}COC{{H}_{3}}\]

    D) \[C{{H}_{2}}=CHOC{{H}_{3}}\]

    View Answer play_arrow
  • question_answer83) Oxidation of 1-butene with hot\[KMn{{O}_{4}}\]solution produces

    A) \[C{{H}_{3}}C{{H}_{2}}COOH+HCOOH\]

    B) \[C{{H}_{3}}C{{H}_{2}}COOH+C{{O}_{2}}\]

    C) \[C{{H}_{3}}COOH+C{{O}_{2}}\]

    D) \[{{(C{{H}_{3}})}_{2}}C=O+C{{O}_{2}}\]

    View Answer play_arrow
  • question_answer84) A mixture of 1-chlorobutane and 2-chloro- butane when treated with alcoholic KOH gives:

    A) 1-butene

    B) 2-butene

    C) isobutylene

    D) mixture of 1-butene +2-butene

    View Answer play_arrow
  • question_answer85) Out of the two compounds shown below, the vapour pressure of B at a particular temperature is expected to be

    A) higher than that of A

    B) lower than that of B

    C) same as that of A

    D) can be higher or lower depending upon the size of the vessel.

    View Answer play_arrow
  • question_answer86) Roasted tin stone ore after washing with water is known as

    A) block tin

    B) white tin

    C) black tin

    D) granulated tin

    View Answer play_arrow
  • question_answer87) Which of the following has strongest hydrogen bonding?

    A) Ethylamine

    B) Ammonia

    C) Ethyl alcohol

    D) Diethyl ether

    View Answer play_arrow
  • question_answer88) Consider the following statements The rate law for the acid catalysed hydrolysis of an ester being given as Rate\[=k[{{H}^{+}}]\] [ester]\[=k\][ester]. If the acid concentration is doubled at constant ester concentration 1. The second order rate constant, k is doubled. 2. The pseudo first order rate constant, k is doubled. 3. The rate of the reaction is doubled Which of the above statements are correct?

    A) 1 and 2

    B) 2 and 3

    C) 1 and 3

    D) 1, 2 and 3

    View Answer play_arrow
  • question_answer89) A fibrous mineral which can withstand red hot flames without any damage is

    A) talc

    B) glass wool

    C) soap stone

    D) asbestos

    View Answer play_arrow
  • question_answer90) When o- or\[p-\]phenolsulphonic acid is treated with bromine water, the product formed is

    A) 2, 4-dibromophenol

    B) 2, 4, 6-tribromophenol

    C) 3-bromophenol boric acid

    D) 3, 5-dibromophenol

    View Answer play_arrow
  • question_answer91) An alkene on vigorous oxidation with\[KMn{{O}_{4}}\]gives only acetic acid. The alkene is

    A) \[C{{H}_{3}}C{{H}_{2}}CH=C{{H}_{2}}\]

    B) \[C{{H}_{3}}CH=CHC{{H}_{3}}\]

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

    D) \[C{{H}_{3}}CH=C{{H}_{2}}\]

    View Answer play_arrow
  • question_answer92) Which of the following has the maximum heat of hydrogenation?

    A)

    B)

    C)

    D)

    View Answer play_arrow
  • question_answer93) Deflection back of a few particles on hitting thin foil of gold shows that

    A) nucleus is heavy

    B) nucleus is small

    C) Both [a] and [b]

    D) electrons create hinderance in the movement of\[\alpha -\]particles

    View Answer play_arrow
  • question_answer94) Which of the following does not form an oxime?

    A) Glucose

    B) Glucose penta-acetate

    C) Arabinose

    D) Galactose

    View Answer play_arrow
  • question_answer95) An aromatic compounds X with molecular formul\[{{C}_{8}}{{H}_{10}}\]produces on nitration one mononitro derivative and three dinitro derivatives. Compound X would be

    A) ethyl benzene

    B) \[m-\]xylene

    C) \[o-\]xylene

    D) \[p-\]xylene

    View Answer play_arrow
  • question_answer96) The end product C in the following sequence of chemical reactions is \[C{{H}_{3}}COOH\xrightarrow[{}]{CaC{{O}_{3}}}A\xrightarrow[{}]{heat}B\xrightarrow[{}]{N{{H}_{2}}OH}C\]

    A) acetaldehyde oxime

    B) formaldehyde oxime

    C) methyl nitrate

    D) acetoxime

    View Answer play_arrow
  • question_answer97) The only cations present in a slightly acidic solution are\[F{{e}^{3+}},Z{{n}^{2+}}\]and\[C{{u}^{2+}}\]The reagent that when added in excess to this solution would identify and separate\[F{{e}^{3+}}\] in one step is

    A) \[2M\,HCl\]

    B) \[6M\,N{{H}_{3}}\]

    C) \[6M\,NaOH\]

    D) \[{{H}_{2}}S\,gas\]

    View Answer play_arrow
  • question_answer98) The nucleus of an atom can he assumed to be spherical. The radius of the nucleus of mass number A is given by\[1.25\times {{10}^{-13}}\times {{A}^{1/3}}cm\]. Radius of atom is one A. If the mass number is 64, then the fraction of the atomic volume that is occupied by the nucleus is

    A) \[1.0\times {{10}^{-3}}\]

    B) \[5.0\times {{10}^{-5}}\]

    C) \[2.5\times {{10}^{-2}}\]

    D) \[1.25\times {{10}^{-13}}\]

    View Answer play_arrow
  • question_answer99) Carboxylic acids readily dissolve in aqueous sodium bicarbonate, liberating carbon dioxide. Which one of the following is correct?

    A) Free carboxylic acid and its conjugate base are of comparable stability

    B) The free carboxylic acid is more stable than its conjugate base

    C) The conjugate base of the carboxylic acid is more stable than the free carboxylic acid

    D) The conjugate acid of the carboxylic acid is more stable than the free carboxylic acid

    View Answer play_arrow
  • question_answer100) Lead pipes can be used safely for carrying

    A) soft water

    B) soft water first heated with lime stone

    C) conc. \[HN{{O}_{3}}\]

    D) soft as well as hard water

    View Answer play_arrow
  • question_answer101) The branch of biology, which deals with the study of processes and functions of an organism, is called

    A) histology

    B) anatomy

    C) physiology

    D) entomology

    View Answer play_arrow
  • question_answer102) Virus multiplies in

    A) soil

    B) dead tissue

    C) living tissue

    D) culture medium

    View Answer play_arrow
  • question_answer103) Which of the following technique, other than microscopy is used for study of cell ?

    A) Maceration

    B) Plasmolysis

    C) Chromatography

    D) Autoradiography

    View Answer play_arrow
  • question_answer104) Robert Hooke used the term cell in the year

    A) 1650

    B) 1665

    C) 1865

    D) 1960

    View Answer play_arrow
  • question_answer105) Protein synthesis takes place in

    A) ribosomes

    B) chloroplasts

    C) mitochondria

    D) Golgi bodies

    View Answer play_arrow
  • question_answer106) Replication of centriole occurs during

    A) interphase

    B) prophase

    C) late prophase

    D) late telophase

    View Answer play_arrow
  • question_answer107) L-shaped chromosomes are also called

    A) acrocentric

    B) telocentric

    C) sub-metacentric

    D) None of these

    View Answer play_arrow
  • question_answer108) Which of the following is/are grouped under phanerogams?

    A) Angiosperms

    B) Gymnosperms

    C) Pteridophytes

    D) Both [a] and [b]

    View Answer play_arrow
  • question_answer109) A bacterium divides after every 35 minutes. If a culture containing \[{{10}^{5}}\]cells per mL is grown, then cell concentration per mL after 175 minutes will be

    A) \[175\times {{10}^{5}}\]

    B) \[125\times {{10}^{5}}\]

    C) \[48\times {{10}^{5}}\]

    D) \[32\times {{10}^{5}}\]

    View Answer play_arrow
  • question_answer110) Cladonia rangiferina is a/an

    A) algae

    B) lichen

    C) fungus

    D) angiosperm

    View Answer play_arrow
  • question_answer111) Which of the following is an algal parasite?

    A) Volvox

    B) Ulothrix

    C) Porphyra

    D) Cephaleuros

    View Answer play_arrow
  • question_answer112) Which of the following is true about bryophytes ?

    A) They are thalloid

    B) They contain chloroplast

    C) They possess archegonia

    D) All of the above

    View Answer play_arrow
  • question_answer113) The kidney-shaped covering of sorus Dryopteris, is called

    A) placenta

    B) ramentum

    C) sporophyll

    D) indusium

    View Answer play_arrow
  • question_answer114) Which of the following is a wheat fruit?

    A) Achene

    B) Cypsella

    C) Caryopsis

    D) Endosperm

    View Answer play_arrow
  • question_answer115) A gymnospermic leaf carries 16 chromosomes. The number of chromosomes in its endosperm is

    A) 24

    B) 16

    C) 12

    D) 8

    View Answer play_arrow
  • question_answer116) Tyioses thickenings are seen in

    A) collenchyma

    B) phloem cells

    C) ray parenchyma only

    D) ray parenchyma and xylem cells

    View Answer play_arrow
  • question_answer117) Which of the following plant shows multiple epidermis?

    A) Croton

    B) Allium

    C) Nerium

    D) Cucurbita

    View Answer play_arrow
  • question_answer118) Double fertilization occurs among

    A) algae

    B) bryophytes

    C) angiosperms

    D) gymnospenr

    View Answer play_arrow
  • question_answer119) The endosperm in angiosperm develops from

    A) zygote

    B) secondary nucleus

    C) chalazal polar nucleus

    D) micropylar polar nucleus

    View Answer play_arrow
  • question_answer120) The fertilization in which male gametes are carried through pollen tube is known as

    A) syngamy

    B) porogamy

    C) siphonogamy

    D) chalazogamy

    View Answer play_arrow
  • question_answer121) Which of the following theory gives the latest explanation for the closure of stomata ?

    A) ABA theory

    B) Munch theory

    C) Starch glucose theory

    D) Active \[{{K}^{+}}\]transport theory

    View Answer play_arrow
  • question_answer122) Loss of liquid water by guttation occurs through

    A) hydathodes

    B) stomata

    C) cuticle

    D) bark

    View Answer play_arrow
  • question_answer123) Which of the following is the first compound that accepts carbon dioxide during dark phase of photosynthesis?

    A) NADP

    B) RuBP

    C) Ferredoxin

    D) Cytochrome

    View Answer play_arrow
  • question_answer124) Oxygen which is liberated during photosynthesis, comes from

    A) \[C{{O}_{2}}\]

    B) \[{{H}_{2}}O\]

    C) chlorophyll

    D) phosphoglyceric acid

    View Answer play_arrow
  • question_answer125) In \[{{C}_{4}}\] plants, the carbon dioxide fixation occurs in

    A) guard cells

    B) spongy cells

    C) palisade cells

    D) bundle sheath cells

    View Answer play_arrow
  • question_answer126) Ethyl alcohol is commercially manufactured from

    A) bajra

    B) grapes

    C) maize

    D) sugarcane

    View Answer play_arrow
  • question_answer127) Last electron acceptor in respiration is

    A) \[{{O}_{2}}\]

    B) \[{{H}_{2}}\]

    C) \[C{{O}_{2}}\]

    D) NADH

    View Answer play_arrow
  • question_answer128) A hormone delaying senescence is

    A) auxin

    B) cytokinins

    C) ethylene

    D) gibberellin

    View Answer play_arrow
  • question_answer129) Which of the following induces flowering in long day plants ?

    A) Gibberellins

    B) Cytokinin

    C) Auxins

    D) Ethylene

    View Answer play_arrow
  • question_answer130) What name has been assigned to the genus produced by a cross between cabbage and radish?

    A) Secale

    B) Bursapastoris

    C) Lysogenicophyll

    D) Raphanobrassica

    View Answer play_arrow
  • question_answer131) Genetic counsellors can identify heterozygous individuals by

    A) height of individuals

    B) colour of individuals

    C) screening procedures

    D) All of the above

    View Answer play_arrow
  • question_answer132) The term heterosis was first coined by

    A) McClintock

    B) Poweri

    C) Swaminathan

    D) None of these

    View Answer play_arrow
  • question_answer133) Somatic hybridization is a technique of

    A) natural breeding

    B) natural pollination

    C) artificial pollination

    D) somatic cells hybridization

    View Answer play_arrow
  • question_answer134) which of the following is initiation codon in eukaryotes ?

    A) UAG

    B) UGA

    C) UAA

    D) AUG

    View Answer play_arrow
  • question_answer135) Which of the following species are restricted to an area?

    A) Sibling species

    B) Endemic species

    C) Allopatric species

    D) Sympatric species

    View Answer play_arrow
  • question_answer136) Biological concept of species is mainly based on

    A) reproductive isolation

    B) morphological features only

    C) methods of reproduction only

    D) morphology and methods of reproduction

    View Answer play_arrow
  • question_answer137) Which of the following supports a dense population of plankton and littoral vegetation?

    A) Oligotrophic

    B) Eutrophic

    C) Lithotrophic

    D) Agroecotrophic

    View Answer play_arrow
  • question_answer138) A man-made ecosystem is

    A) less in diversity

    B) more in diversity

    C) man does not make ecosystem

    D) more stable than natural ecosystem

    View Answer play_arrow
  • question_answer139) Crop rotation is used by farmers to increase

    A) soil fertility

    B) community area

    C) organic content of soil

    D) nitrogenous content in the soil

    View Answer play_arrow
  • question_answer140) Which of the following organism form the decomposers ?

    A) Pteris

    B) Bacteria

    C) Saprophytic fungi

    D) Both [b] and [c]

    View Answer play_arrow
  • question_answer141) Fly-ash is a/an

    A) insectivorous plant

    B) light airborn paniculate matter

    C) new name of orchid plant

    D) causal organism of various diseases

    View Answer play_arrow
  • question_answer142) Some effects of sulphur dioxide and its transformation products on plant include

    A) plasmolysis

    B) Golgi body destruction

    C) protein dis-integration

    D) chlorophyll destruction

    View Answer play_arrow
  • question_answer143) Which of the following plant is used for the purification of water?

    A) Beggiata

    B) Chlorella

    C) Spirogyra

    D) Eichhornia

    View Answer play_arrow
  • question_answer144) In the treatment of waste water discharge, which treatment stage involves biological treatment?

    A) Primary treatment

    B) Secondaiy treatment

    C) Tertiary treatment

    D) Reverse osmosis stage

    View Answer play_arrow
  • question_answer145) Which of the following is considered to be the best chemical method of fixing atmospheric nitrogen?

    A) Fisher method

    B) Decan method

    C) Haber-Bosch method

    D) Paranas-Meyerhoff method

    View Answer play_arrow
  • question_answer146) Desired improved varieties of economically useful crops are raised by

    A) migration

    B) biofertilizer

    C) hybridization

    D) natural selection

    View Answer play_arrow
  • question_answer147) Indian rose wood tree is a common name of

    A) Acacia

    B) Shorea

    C) Dalbergia

    D) Eucalyptus

    View Answer play_arrow
  • question_answer148) Emasculation is concerned with

    A) hybridization

    B) clonal selection

    C) mass selection

    D) pure line selection

    View Answer play_arrow
  • question_answer149) Which of the following insecticide is obtained from the roots of Derris elleptica ?

    A) Cinerin

    B) Nicotine

    C) Rotenone

    D) Pyrethrum

    View Answer play_arrow
  • question_answer150) In maize, hybrid vigour is exploited by

    A) bombarding the protoplast with DNA

    B) crossing of two inbreed parental lines

    C) harvesting seeds from the most productive plants

    D) inducing mutations

    View Answer play_arrow
  • question_answer151) Which of the following is not vestigial in man?

    A) Tail vertebrae

    B) Nails

    C) Nictitating membrane

    D) Vermiform appendix

    View Answer play_arrow
  • question_answer152) The chemical used in National Malaria Eradication Programme is

    A) 2,4-D

    B) BHC

    C) DDT

    D) Pyrethroid

    View Answer play_arrow
  • question_answer153) A eukaryotic gene contains two kinds of base sequences. Which of these plays an important role in protein synthesis ?

    A) Introns

    B) Exons

    C) Both [a] and [b]

    D) None of these

    View Answer play_arrow
  • question_answer154) The number of hydrogen bonds between adenine and thymine in a DNA molecule is

    A) two

    B) three

    C) four

    D) eight

    View Answer play_arrow
  • question_answer155) The enzyme, which combines with non-protein part to form a functional enzyme known as

    A) Co-enzyme

    B) holoenzyme

    C) apoenzyme

    D) prosthetic group

    View Answer play_arrow
  • question_answer156) Which of the following enzyme digest protein in stomach ?

    A) Trypsin

    B) Pepsin

    C) Crepsin

    D) None of these

    View Answer play_arrow
  • question_answer157) Passive food ingestion in Amoeba is known as

    A) import

    B) invagination

    C) circumfluence

    D) circumvallatic-

    View Answer play_arrow
  • question_answer158) The slime moulds are characterized by the presence of

    A) elaters

    B) pseudoelaters

    C) capillitium

    D) capitulum

    View Answer play_arrow
  • question_answer159) Ecdysone is secreted from

    A) Insecta

    B) Trematoda

    C) Nematoda

    D) Polychaeta

    View Answer play_arrow
  • question_answer160) In the life cycle of mosquito, comma-shaped stage is

    A) larval stage

    B) pupal stage

    C) imago stage

    D) None of these

    View Answer play_arrow
  • question_answer161) Haemocoel is found in

    A) Hydra and Aurelia

    B) Taenia and Ascaris

    C) Cockroach and Pila

    D) Balanoglossus and Herdmania

    View Answer play_arrow
  • question_answer162) The group of Anamniota includes

    A) reptiles and birds

    B) birds and mammals

    C) fishes and amphibians

    D) reptiles and mammals

    View Answer play_arrow
  • question_answer163) The excretory material of bony fish is

    A) urea

    B) protein

    C) ammonia

    D) amino acid

    View Answer play_arrow
  • question_answer164) Different colour of frog skin are controller by

    A) hormones

    B) melanocytes

    C) nervous system

    D) Both [a] and [c]

    View Answer play_arrow
  • question_answer165) Blastula of frog has

    A) blastopore

    B) blastocoel

    C) archenteron

    D) gastropore

    View Answer play_arrow
  • question_answer166) Carotene pigment is found in the cells of

    A) dermis

    B) epidermis

    C) adipose cell

    D) Both [b] and [c]

    View Answer play_arrow
  • question_answer167) Deboves membrane is a layer of

    A) muscular tissue

    B) epithelial tissue

    C) connective tissue

    D) All of the above

    View Answer play_arrow
  • question_answer168) Achilles tendon is associated with

    A) gluteus muscle

    B) hamstring muscle

    C) quadriceps muscle

    D) gastrocnemius muscle

    View Answer play_arrow
  • question_answer169) The leucocytes contain, which of the following in large quantity?

    A) Basophils

    B) Neutrophils

    C) Eosinophils

    D) Monocytes

    View Answer play_arrow
  • question_answer170) Which part of our body secreted the hormone secretin ?

    A) Ileum

    B) Stomach

    C) Duodenum

    D) Oesophagus

    View Answer play_arrow
  • question_answer171) During inspiration, the diaphragm

    A) expands

    B) shows no change

    C) contracts and flattens

    D) relaxes to become dome-shaped

    View Answer play_arrow
  • question_answer172) The oxygen toxicity is related with

    A) blood poisoning

    B) collapse of alveolar walls

    C) failure of ventilation of lungs

    D) Both [a] and [b]

    View Answer play_arrow
  • question_answer173) Cardiac output is determined by

    A) heart rate

    B) stroke volume

    C) blood flow

    D) Both [a] and [b]

    View Answer play_arrow
  • question_answer174) The important function of lymph is to

    A) transport oxygen to the brain

    B) transport carbon dioxide to the lungs

    C) return RBCs to the lymph nodes

    D) return interstitial fluid to the blood

    View Answer play_arrow
  • question_answer175) The lining of intestine and kidneys in humans is

    A) keratinized

    B) brush border

    C) ciliated

    D) None of these

    View Answer play_arrow
  • question_answer176) The yellow colour of urine is due to the presence of

    A) urea

    B) uric acid

    C) urochrome

    D) bilirubin

    View Answer play_arrow
  • question_answer177) The Leydig cells secrete

    A) oestrogen

    B) testosterone

    C) progesterone

    D) corticosterone

    View Answer play_arrow
  • question_answer178) The function of pineal body is to

    A) lighten the skin colours

    B) control sexual behaviour

    C) regulates the period of puberty

    D) All of the above

    View Answer play_arrow
  • question_answer179) Which of the following nerve is purely motor nerve ?

    A) Vagus

    B) Facial

    C) Abducens

    D) Trigeminal

    View Answer play_arrow
  • question_answer180) Which of the following part of a neuron is covered by fatty sheath?

    A) Axon

    B) Cyton

    C) Dendrite

    D) Node of Ranvier

    View Answer play_arrow
  • question_answer181) Synsacrum of fowl is consist of about

    A) 29 vertebrae

    B) 3 vertebrae

    C) 16 vertebrae

    D) single vertebrae

    View Answer play_arrow
  • question_answer182) In rabbit, head of the epididymis present at the head of the testes, is called

    A) vas deferens

    B) gubemaculum

    C) cauda epididymis

    D) caput epididymis

    View Answer play_arrow
  • question_answer183) The extra embryonic membranes of mammalian embryo are derived from

    A) trophoblast

    B) follicle cells

    C) formative cells

    D) inner cell mass

    View Answer play_arrow
  • question_answer184) The eggs of silk moth are

    A) homolecithal

    B) telolecithal

    C) mesolecithal

    D) centrolecithal

    View Answer play_arrow
  • question_answer185) Which of the following was formed in S. Millers experiment?

    A) Amino acids

    B) Nucleic acids

    C) UV radiations

    D) Microspheres

    View Answer play_arrow
  • question_answer186) Trilobites were evolved during, which of the following period?

    A) Silurian

    B) Cambrian

    C) Ordovician

    D) Precambrian

    View Answer play_arrow
  • question_answer187) Which of the following variations are temporary and have nothing to do with the last or next generation?

    A) Hereditary variations

    B) Discontinuous variations

    C) Environmental variations

    D) None of the above

    View Answer play_arrow
  • question_answer188) The modem man differs from the apes in

    A) protruding eyes

    B) spare body hair

    C) wearing of clothes

    D) arms shorter than legs

    View Answer play_arrow
  • question_answer189) The highest cranial capacity is/was present in

    A) Java man

    B) peking man

    C) handy man

    D) modem man

    View Answer play_arrow
  • question_answer190) Wild life is

    A) any living organism in any habitat

    B) predatory animals in their natural habitat

    C) any living organisms in its natural habitat

    D) economically important animals and plants

    View Answer play_arrow
  • question_answer191) A marriage between normal visioned man and colourblind woman will produce, which of the following type of offsprings ?

    A) Normal sons and carrier daughters

    B) Colourblind sons and carrier daughters

    C) Colourblind sons and 50% carrier daughters

    D) 50% colourblind sons and 50% carrier daughters

    View Answer play_arrow
  • question_answer192) Haemophilia is a

    A) deficiency disorder

    B) Y-linked disorder

    C) X-linked disorder

    D) autosomal sex disorder

    View Answer play_arrow
  • question_answer193) UV radiation from sun causes, which of the following disorder of eyes ?

    A) Cataract

    B) Glaucoma

    C) Dilation pupil

    D) Some defect of retina

    View Answer play_arrow
  • question_answer194) The study of relationship between size and shape is called

    A) allopatric

    B) allelopathy

    C) allometry

    D) allogamy

    View Answer play_arrow
  • question_answer195) Which of the following is the most sparsely populated state of India ?

    A) Manipur

    B) Rajasthan

    C) Meghalaya

    D) Arunachal Pradesh

    View Answer play_arrow
  • question_answer196) The natural parthenogenesis is found in

    A) sharks

    B) housefly

    C) Drosophilia

    D) honey bee

    View Answer play_arrow
  • question_answer197) The interferons are

    A) antiviral proteins

    B) antibiotic proteins

    C) antigen proteins

    D) antibacterial partied

    View Answer play_arrow
  • question_answer198) An organic substance bound to an enzyme and essential for its activity is called

    A) Co-enzyme

    B) holoenzyme

    C) apoenzyme

    D) isoenzyme

    View Answer play_arrow
  • question_answer199) Who coined the term antibiotics?

    A) Darwin

    B) Woodruff

    C) Flemming

    D) Selman Waksman

    View Answer play_arrow
  • question_answer200) A complex polysaccharide produced from sucrose by the bacterium Leuconostoc mesenteries is

    A) chitin

    B) starch

    C) cellulose

    D) dextran

    View Answer play_arrow

   

You need to login to perform this action.
You will be redirected in 3 sec spinner

Free
Videos