NEET Free Mock Test 2

NEET examination is one of the toughest exams in the country. NEET is aimed at selecting candidates for medical courses across the country. The exam consists of 180 questions for 720 marks. Each question carries 4 marks. Each wrong answer carries -1 mark. Duration of the exam is 180 minutes.

  • Physics
  • Botany
  • Zoology
  • Chemistry

Physics

1. The plane faces of two identical plano-convex lenses each having focal length of 40cm  are pressed against each other to form a usual convex lens. The distance from lens, at which an object must be placed to obtain a real, inverted image with magnification one is

 

Question 1 of 180

2. Two bodies ‘A and B’ of masses 5 kg and 10 kg in contact with each other rest on a table against a rigid partition. Coefficient of friction between the bodies and the table is 0.2. A force of 200N is applied horizontally at ‘A’ action reaction force between A and B is (g = 10 m/sec2)

Question 2 of 180

3. The wavelength of light plays no role in...

Question 3 of 180

4. In a uniform segment of a circuit the current is proportional to the...

Question 4 of 180

5. A wave represented by the given equation y = a cos(kx - ωt) is superposed with another wave to form a stationary wave such that the point x=0 is a node. The equation for the other wave is

Question 5 of 180

6. The de-Broglie wave length of an electron in first Bohr orbit is

 

Question 6 of 180

7. A source and Listner both moving towards each other each with speed .frequency of the note emitted by the source is ‘600Hz’ Apparent wave length of sound wave received by the observer is  ( V = 330 m/ sec)

Question 7 of 180

8. The only atom which has no neutron in the nucleus is...

Question 8 of 180

9. Two satellites have periods P1 and P2, respectively. Their heights above the surface of the earth are h1 and h2,respectively. If h1 > h2, then...

 

Question 9 of 180

10. A sonometer wire resonate with a given tuning fork forming standing wave with five antinode between the two bridges when a mass of 9kg is suspended from the wire. When this mass is replaced by a mass M, the wire resonates with the same tuning fork forming three antinodes for the same position of the bridges. The value of M is

Question 10 of 180

11. A Student measured the length of a rod and wrote it as 3.50cm. Which instrument did he use to measure it

 

Question 11 of 180

12. In the figure shown a source of sound of frequency 510 Hz move with constant velocity Vs=20 m/ s in the direction shown. The wind is blowing at a constant velocity Vw=20 m/S towards an observer who is at rest at point B. Corresponding to the sound emitted by the source in initial position A, the frequency detected by the observer is equal to (speed of sound relative to air = 330 m/s)

Question 12 of 180

13. Diamagnetic materials are substances that...

Question 13 of 180

14. A solid sphere of mass ’M’ ; radius ‘R’ and having moment of inertia about an axis passing through the centre of mass is ‘I’. It recast into a disc of thickness ‘t’. Whose moment of inertia about an axis passing through its edge and perpendicular to its plane remains ‘I’ then radius of the disc will be

Question 14 of 180

15. The power of a lens having refractive index 1.25 is +3 diopters. When placed in a liquid its power is -2 diopters. The refractive index of the liquid is

Question 15 of 180

16. If for the planets in solar system, r is the radius of the orbit and T is the periodic time, then the ratio r³ /T² is...

Question 16 of 180

17. A particle moves along X –axis in such a way that coordinate X varies with time t according to the equation . x = ( 2-5t+6t2)m The initial velocity of the particle is

Question 17 of 180

18. A thin circular loop of radius ‘R’ rotates about its vertical diameter with an angular frequency ‘ ’. A small bead on the wire loop remains at its lowermost point for ω ≤ √(g/R) . What is the angle made by the radius vector joining the centre to the bead with the vertical downward direction for ω = √(2g/R) (Neglect the friction)

Question 18 of 180

19. The intermolecular potential is dependent on...

Question 19 of 180

20. The threshold frequency for a metallic surface corresponds to an energy of 6.2ev and the stopping potential for a radiation incident on this surface is ‘5volt’. The incident radiation lies in

 

Question 20 of 180

21. A boy swings from a rope 4.9 m long. His approximate period of oscillation is...

Question 21 of 180

22. The given graph represents V – I characteristic for a semiconductor device

Which of the following statement is correct

Question 22 of 180

23. For monatomic gases, Cp/Cv is equal to...

Question 23 of 180

24. If the maximum value of the induced e.m.f. is Vm and maximum r.m.s. current is √ 2 ampere for an a.c. circuit with resistance R, then the value of Vm in volt is equal to...

Question 24 of 180

25. An object moving with a speed of 6.25 m/sec, is decelerated at a rate given by (dy/dt) = -2.5√v . Where ‘v’ is the instantaneous speed. The time taken by the object to come to rest, would be

 

Question 25 of 180

26. For the angle of minimum deviation of a prism to be equal to its refracting angle, the prism must be made of a material whose refractive index

 

Question 26 of 180

27. For a projectile, its horizontal range and maximum vertical heights are equal, maximum height reached by it is (‘u’ is initial velocity of the projectile)

Question 27 of 180

28. The aperture of the objective lens of a telescope is made large so as to

 

Question 28 of 180

29. A thin ring has mass M and radius R. Its moment of inertia about the axis passing through its center and perpendicular to its plane is...

Question 29 of 180

30. Out of the following functions representing motion of a particle which represents ‘SHM’

a) Y = sinωt - cosωt

b) Y = Sin3 ωt

c) Y = 5 cos[(3π/4) - 3ωt]

d) Y = 1 + ωt + ω2t2

Question 30 of 180

31. For a prism kept in air it is found that for an angle of incidence 600, the angle of refraction ‘A’, angle of deviation ‘δ ’ and angle of emergence ‘e’ become equal. Then the refractive index of the prism is

Question 31 of 180

32. The Poisson’s ratio of a material is 0.4. If a force is applied to a wire of this material, there is a decrease of cross sectional area by 2%. The percentage increase in its length is

Question 32 of 180

33. When a ferromagnet is inserted in a current-carrying loop, the magnetic field...

Question 33 of 180

34. Torques of equal magnitude are applied to a hollow cylinder and a solid sphere, both having the same mass and radius. The cylinder is free to rotate about its standard axis of symmetry and the solid sphere about its diameter axis. After ‘t’ sec their angular velocities are . Choose the correct answer (initial angular speed of each is 'ω0'

Question 34 of 180

35. In a large building there are 15 bulbs of ‘40w’ 5 bulbs of ‘100w’. 5 fans of ‘80w’ and 1 heater of ‘1kw’ . The voltage of electric mains is ‘220 volts’.The minimum capacity of the main fuse of the building will be

 

Question 35 of 180

36. A certain person's heart beats 1.2 times per second and pumps 1.0 x10-4 m³ of blood per beat against an average pressure of 14 kPa. The power output of the heart is...

Question 36 of 180

37. A light ray passes through a prism with an angle of incidence θ, an angle of deviation δ and an angle of emergence ε. Minimum deviation occurs when...

Question 37 of 180

38. A voltage of peak value 283 volt and varying frequency is applied to a series L-C-R combination in which R =3 ohm, ‘L=25 mH and C = 40μF . The frequency of the source at which maximum power is dissipated in the circuit is

Question 38 of 180

39. Two parallel wires carry current in the same direction,...

Question 39 of 180

40. The maximum value of ‘F’ for which both the blocks move together is

Question 40 of 180

41. Two identical containers each of volume V joined by a normal pipe contains gas at a
temperature T. If one of the containers is now maintained at the same temperature T while the other is maintained at 2T, the number of moles of gas in the container having temperature 2T will be

Question 41 of 180

42. The distance between a node and the immediate next antinode is...

Question 42 of 180

43. When the velocity of a moving object is doubled...

Question 43 of 180

44. Gas at a pressure ‘P0’ is contained in a vessel. If the masses of all the molecules are halved and their r.m.s speeds are doubled, the resulting pressure will be equal to

Question 44 of 180

45. The value of the stopping potential depends on...

Question 45 of 180

Botany

46. How many DNA fragments will be obtained on the digestion of a linear DNA and a circular DNA with a type of restriction enzyme having four recognition sites in both the cases?

Question 46 of 180

47. Which site of a tRNA molecule forms hydrogen bonds with particular codon of mRNA molecule?

Question 47 of 180

48. Processes which can never occur in the structure called “Cell brain” are

A. Polymerisation of ribonucleotides

B. Synthesis of ‘energy currency of cell’

C. Polymerisation of deoxyribonucleotides

D. Polymerisation of amino acids

Question 48 of 180

49. Feature unrelated to slime moulds

Question 49 of 180

50.

Select the correct match
Column – I                      Column – II

A. Terminalisation                 I. Pachytene

B. Synapsis                             II. Anaphase II

C. Disjunction                        III. Zygotene

D. Recombinations               IV. Anaphase I

V. Diakinesis
A B C D

Question 50 of 180

51. Culture of the following SCP organism does not require any organic nutrients in the nutrient medium

Question 51 of 180

52. 1/4 TT : 1/2 Tt : 1/4 tt is the binomial expansion of

Question 52 of 180

53. Which of the following statement is wrong?

Question 53 of 180

54. The leaves of the juvenile plant are different in shape from those in mature plant in

Question 54 of 180

55. Select the correct combination of the statements (i-iv) regarding the characteristics of certain organisms

i) Methanogens are archaebacteria which produce methane in marshy areas

ii) Nostoc is a filamentous blue-green alga which fixes atmospheric nitrogen

iii) Chemosynthetic autotrophic bacteria synthesise cellulose from glucose

iv) Mycoplasma lack a cell wall and can survive without oxygen.

Question 55 of 180

56. Choose correct option for A,B,C and D of a dicot embryo

Question 56 of 180

57. The phytohormone/s which play(s) an important role in development, maturation and dormancy of seeds is
I. GA3     II. ABA    III. IAA     IV. Kinetin

Question 57 of 180

58. Identify the non-suberised loosely arranged cells for gaseous exchange in the given diagram

Question 58 of 180

59. Regarding ATP synthesis in aerobic respiration select the correct match 

 

A B C D

Question 59 of 180

60. S-I : Virus resistant plants can be recovered from virus infected plants in Potato and Banana by shoot apex culture

S-II : Pollen culture involving colchicine treatment always results in the production of male homozygous diploid plants only.

Question 60 of 180

61. Photorespiration is performed by

Question 61 of 180

62. Select the correct statement regarding activated sludge formed during secondary sewage treatment

Question 62 of 180

63. Which of the following statements is true

Question 63 of 180

64. The biocatalyst ribozyme is synthesized by a process called

Question 64 of 180

65. Inner most layer of the extrastelar ground tissue system of roots, is characterised by

Question 65 of 180

66. How many of the following statements are correct

A. Yellow mosaic resistance mung bean was developed by hybridisation

B. Yellow mosaic resistant bhindi was produced by mutation breeding

C. White rust resistant mustard was developed by hybridisation

D. Pomato was developed by somatic hybridisation E. Golden rice variety was produced by trans genies

Question 66 of 180

67. Which of the following is a wrong match?

Question 67 of 180

68. Find the correct match
I) Aspergillus niger — fungus — citric acid
II) Streptococcus — bacterium — streptokinase
III) Trichoderma polysporum — fungus — cyclosporin A
IV) Monascus purpureus — yeast — statins
The correct answer is

Question 68 of 180

69. Find the correct match w.r.t annual rings

Question 69 of 180

70. Bacteria differ from cyanobacteria by which of the following features?

i) Absence of flagella and fimbriae

ii) dsDNA without attached histones

iii) Anoxygenic photosynthesis

iv) Stored food as glycogen

v) Absence of N2 Fixing cells like heterocysts

 

Question 70 of 180

71. A,B,C and D lies on same chromosome with given distances  between them, as

AD=60 morgan, AB-38 morgan, DB=22 morgan and

AC=18 morgan. Find the sequence of four genes on the chromosome

Question 71 of 180

72. If 24 molecules of erythrose-4- phosphate are formed in Calvin cycle. What is the number of CO2 molecules fixed?

Question 72 of 180

73. A  cell under hypertonic solution shows incipient plasmolysis, then what will be present between cell wall and cell membrane

Question 73 of 180

74. Which of the following is true w.r.t. grafting

Question 74 of 180

75. Which of the following taxonomical aids are used in identification of both plants and animals?

Question 75 of 180

76. Different types of plastids (chloroplast, chromoplast and leucoplast) are quite related as:

Question 76 of 180

77. A cell is kept in hypotonic solution, after sometime is

Question 77 of 180

78. Identify the correct matched related to plant movements

Question 78 of 180

79. A leafy vegetable ‘bathua’ produced by IARI is rich in

Question 79 of 180

80. Number of amembraneous structures from the following is/areRibosome, Centriole, Cytoskeleton, Peroxisome, Nucleolus, Inclusion bodies, Power house of the cell

Question 80 of 180

81. The minerals involved in water-splitting reaction during light phase of photosynthesis is/are

Question 81 of 180

82. Which of the following is a correct match

Question 82 of 180

83. Bicollateral vascularbundles are present in which part of the Solanaceae and Cucurbitaceae members

Question 83 of 180

84. Match the items of Column-I with those in Column-II
A B C D E

 

Question 84 of 180

85. How many of the following statements are true

i) Volvox and Fucus show oogamy

ii) Agar is commercially obtained from Gelidium and Gracillaria

iii) Gametophyte is parasite on sporophyte in Sphagnum

iv) Funaria is monoecious and Marchantia is dioecious

v) Source of SCP are Spirullina and Chlorella

Question 85 of 180

86. Study the following diagrams and identify the option containing correct set answers

Question 86 of 180

87. Apple, Custard apple, Pine apple and thorn apple are

Question 87 of 180

88. Agar - agar, an inert polysaccharide is extracted from

Question 88 of 180

89. After initial growth maize stem elongates by the activity of

Question 89 of 180

90. Main function of centromere is

Question 90 of 180

Zoology

91. Which of the following statements are correct related to human

A. The chemical process of digestion is initiated in oral cavity by the hydrolytic action of the carbohydrate splitting enzyme, the salivary amylase.

B. Lipases are absent in secretion of gastric glands

C. Bile helps in emulsification of fats and also activates lipases.

D. Nucleases in the succus entericus acts on nucleic acids to form nucleotides and nucleosides

Question 91 of 180

92. Find out the correct labelling of bones A, B, C and D in the given figure

Question 92 of 180

93. Human liver fluke depends on two intermediate hosts to complete its life cycle they are

Question 93 of 180

94. Hyperdactyly (the possession of more than 12 fingers) is determined by the dominant allele (H) and normal condition by recessive allele (h).

The diagram shown a family tree in which some members of the family are hyperdactylus
Find out the genotype of A, B and C

Question 94 of 180

95. The stage of suspended development shown by zooplanktons is called

Question 95 of 180

96. In kidneys, renal papillae are part of

Question 96 of 180

97. Compared to a bull a bullock is docile because of

Question 97 of 180

98. Which part of ovary in mammals acts as an endocrine gland after ovolution?

Question 98 of 180

99. Which of the following statement is incorrect w.r.t alimentary canal of cockroach?

Question 99 of 180

100. Plant whose product is with hallucinogenic properties is

Question 100 of 180

101. Implantation of the blastocyst occurs

Question 101 of 180

102. Statement(1): (S1): After primary immune response, subsequent encounter with the same pathogen elicits a highly intensified anamnestic response

Statement(2): (S2): Anamnestic response is because our body develops memory after the first encounter.

Question 102 of 180

103. Which of the following statement is true for the structure marked ‘A’ in the given figure

Question 103 of 180

104. Choose the wrong statement.

Question 104 of 180

105. In a population of 60,000 individuals if the frequency of dominant allele is 60%. Then extrapolate the % of Dominant individuals

Question 105 of 180

106. Choose the wrong statement.

Question 106 of 180

107. During the transmission of nerve impulse through a nerve fibre, the potential on the outer side of the plasma membrane has which type of electric charge?

Question 107 of 180

108. Partial pressure of oxygen in alveoli, atmospheric air and tissue will be ------- mm of Hg

Question 108 of 180

109. Match the following and select the correct answer.
Column I                          Column II
A. Choanocytes               1. Platyhelminthes
B. Cnidoblasts                 2. Ctenophora
C. Flame cells                  3. Porifera
D. Nephridia                   4. Coelenterata
E. Comb plates               5. Annelid

Question 109 of 180

110. The diagram shows a section through an alveolus and ablood capillary What are the oxygen concentrations at A,B and C?

 

A               B               C

Question 110 of 180

111. The Neanderthal man with a brain size ___A____ cc lived in near __B____ between ___C____ to ___D____
Years back

Question 111 of 180

112. Which of the following structures are found in female cockroach ?

Question 112 of 180

113. Which of the following pairs are correctly matched?

A. Crocodile 4-Chambered heart

B. Sea Urchin Parapodia

C. Obelia Metagenesis

D. Lemur Thecodont

Question 113 of 180

114. Select the correct match of the digested products in humans given in column-I with their absorption site and mechanism in column-II.
Column-I                                                    Column-II
1) Glycerol, fatty acids                  Duodenum, move as                                                                    chylomicrons
2) Cholesterol, maltose                Large intestine, active                                                                   absorption
3) Glycine, glucose                        Small intestine, active                                                                   absorption
4) Fructose, Na+                            Small intestine, passive                                                                 absorption

Question 114 of 180

115. Find out the correctly matching set

Question 115 of 180

116. Statement –1 (S1): When one cardio myocyte receives a signal to contract, its neighbours are also stimulated to contract

Statement –2(S2): Communication junctions (inter calated discs)

at some fusion points allow the cells to contract as a unit

Question 116 of 180

117. Due to nondisjunction of chromosomes during spermatogenesis, some sperms carry both sex
chromosomes (22A + XY) and some sperms do not carry any sex chromosome (22A + O). If these sperms fertilise normal eggs (22A + X), what types of genetic disorders appear among the offsprings?

Question 117 of 180

118. Which of the following recombinant protein has been used to treat emphysema?

Question 118 of 180

119. Arrange the following habitats related to Bio  diversity conservation in India in descending order

M)Biosphere reserves         N)National Parks

O) Bio diversity hot spots    P) Sanctuaries

Question 119 of 180

120. Which of the following statements about blood transfusion is correct

Question 120 of 180

121. Match the following columns
Column-I                                          Column-II
A. Dodo                                           I) Rauwolfia
B. Reserpine                                  II) Mauritius
C. Nile perch in lake Victoria       III) Habitat destruction
D. Main cause for biodiversity loss  IV) Alien species

Question 121 of 180

122. Read the following (A-D)

A) About 60% of starch is hydrolysed by salivary amylase in mouth.

B) Chylomicrons are protein coated fat globules transported from intestine into circulatory fluid with all formed elements.

C) In stomach,oxynctic cells secrete proenzyme pepsinogen

D) Unlike marasmus, some fat is still left under skin in kwashiorkor

How many of the above statements are correct

Question 122 of 180

123. The state of heart when it does not pump blood effectively enough to meet the needs of the body is

Question 123 of 180

124. In which one of the following , erythrocytes are repositories of more  ions as compared to others?

Question 124 of 180

125. The density of a population in a given habitat during a given period, fluctuates due to changes in four basic process. On this basis fill up A and B boxes in the given diagram with correct options

Question 125 of 180

126. A 26 years old female has 2 offsprings(NOTE:not twins). If menses start at the age of 12 years then  the number of  ova formed are

Question 126 of 180

127. How many of  the following Animals are non-chordates with water vascular system?

A1) Sea – Cucumber      A2) Sea – Horse

A3) Brittle star                 A4) Sea – Hare

A5) Sea – fan                     A6) Sea – urchin

Question 127 of 180

128. Which one of the following hormone is derived from an Amino acid which the human beings are incapable of synthesizing

Question 128 of 180

129. Making two varieties of a cattle breed like Red Dane which have no common ancestors on either sides of their pedigree up to 4-6 generations is an example for

Question 129 of 180

130. If you suspect major deficiency of antibodies in person, to which of the following would you look for confirmatory evidence?

Question 130 of 180

131. The last two pairs of ribs are named floating ribs, because

Question 131 of 180

132. What is safe sex period regarding birth control?

Question 132 of 180

133. Olfactory bulbs are extensions of

Question 133 of 180

134. Among the following placental mammals who will be the appropriate counterpart for spotted cuscus?

Question 134 of 180

135. Given below are four statements A-D w.r.t. mechanism of muscle contraction. Choose from the option stating them as true (T) and false (F)

A. The action potential in the sarcolemma is generated by release of calcium ions in the sarcoplasm

B. The globular head of meromyosin possesses ATPase enzyme activity which causes hydrolysis of ATP and the energy derived make myosin head bind to exposed active sites on actin.

C. Cross bridge formation is followed by pulling the attached myosin filaments towards the centre of ‘I’ band.

D. The breaking of cross bridge requires binding of new ATP at the myosin head.

A B C D

Question 135 of 180

Chemistry

136. Which of the following is used as “morning after pill”?

Question 136 of 180

137. Find the correct order of acidity of the following compounds

Question 137 of 180

138. The correct order of increasing acidic strength of the compounds
A) CH3CO2H
B) MeOCH2CO2H
C) CF3CO2H

D)

 

Question 138 of 180

139. Henderson equation pH - pKa = 5 will be applicable to an acidic buffer when:-

 

Question 139 of 180

140. Benzene reacts with cholorine in the presence of U.V. light and gives

Question 140 of 180

141. Which of the following has minimum flocculation value for positively charged sol ?

Question 141 of 180

142. A and B are compounds of sodium. ‘A’ is thermally stable. On passing CO2 through aq. solution
‘A’, ‘B’ is formed. ‘B’ on heating gives ‘A’. Phenolpthalein is added to aqueous solutions of A, B.
The colours are

Question 142 of 180

143. Equimolar solutions of the following were prepared in water separately. Which one of the solution will record the highest pH?

Question 143 of 180

144. The pH of a solution of H2O2is 6.0. Some chlorine gas is bubbled into this solution. Which of
the following is correct?

Question 144 of 180

145. At Boyles temperature, compressibility factor Z for a real gas is

Question 145 of 180

146.

 

 

The ratio of number of moles of Hydrogen atoms required to get 1 mole of azobenzene and 1 mole of hydrazobenzene is

Question 146 of 180

147. I2(aq) + I- (aq) --> I-3(aq)+  We started with 1 mole of I2 and 0.5 mole of I- in one litre flask. After equilibrium is reached excess of AgNO3 gave 0.25 mole of yellow precipitate. Then
Equilibrium constant is

Question 147 of 180

148. Which one of the following is a mineral of iron?

Question 148 of 180

149. The first ionization potential of Na is 5.1eV The value of electron gain enthalpy of Na+ will be

Question 149 of 180

150. The shortest wavelength of He+ ion in Balmer series is x, then longest wavelength in the paschen series of Li2+is

Question 150 of 180

151. Phenol can be distinguished from ethanol by the following reagents except

Question 151 of 180

152. 100ml of O 2 on partial ozonisation, O2 and O3are obtained in the molar ratio of 1 : 1 what % of O2is converted into ozone

Question 152 of 180

153. The equivalent weight of HCl in the given reaction is
KCr2O7 +14 HCl -->2KCl + 2CrCl3 +3Cl2 +H2O

Question 153 of 180

154. For the given complex ,[CoCl2(en)(NH3)]+ the number of geometrical isomer’s, the number of optical isomers and the total number of isomers of all type
possible respectively are

Question 154 of 180

155. The half life of a reaction is 46 minutes when the initial concentration of the reactant is 4 mol/L and 92 minutes when the initial concentration is 0.2mol/L. The order of the reaction is

Question 155 of 180

156. DNA & RNA are chiral molecules due to the presence of

 

Question 156 of 180

157. Which of the following will have highest negative enthalpy of formation?

Question 157 of 180

158. 75% completion of a first order reaction takes 2.38 hours. How much time will it take for 99.9% completion?

Question 158 of 180

159. Select species which is planar at nitrogen

Question 159 of 180

160. When the value of azimuthal quantum number is 3, the maximum and the minimum values of the spin multiplicities are

Question 160 of 180

161. The correct order of EM+2/M values with negative sign for the four successive elements Cr,Mn,Fe and Co is

Question 161 of 180

162. Which property is common in diamond and graphite

Question 162 of 180

163. The pH of a solution of H2O2is 6.0. Some chlorine gas is bubbled into this solution. Which of
the following is correct?

Question 163 of 180

164. The rate of a first order reaction is 1.5 ×10-2
mol L-1 min-1 at 0.5 M concentration of the reactant. The
half life of the reaction is

Question 164 of 180

165. When 0.1mole MnO42- is oxidized, the quantity of electricity required in coulombs to completely oxidize MnO42- to MnO4- is

Question 165 of 180

166. Which of the following organ metallic compound is σ and π
bonded?

Question 166 of 180

167. A solution ‘X’ contains 30 mole percent of A and is in equilibrium with its vapour that contains 40 mole percent of ‘B’. The ratio of vapor pressure of pure A and B will be:

Question 167 of 180

168. The most volatile alkane is

Question 168 of 180

169. 51. Cyclohexene on ozonolysis followed by reaction with Zn dust and water gives compound ‘E’. Compound ‘E’ on further treatment with aqu.KOH yields compound ‘F’. Compound ‘F’ is

Question 169 of 180

170.

Question 170 of 180

171. For one mole of a vanderwaal’s gaswhen b=0 and T=300K, the PV vs1/V plot is shown below. The value of vander waal’s constant ‘a’ in atm.lit2 mole-2 is (graph not to scale)

Question 171 of 180

172. The impure 7g of NaCl is dissolved in water and then treated with excess of silver nitrate solution. The weight of precipitate of silver chloride is found to be 14g. The % purity of NaCl solution would be (M. Wt of AgCl = 143.5, NaCl = 58.5)

Question 172 of 180

173. Which of the substances added to soap make it antiseptic?

Question 173 of 180

174. Kjeldahl’s method cannot be used for estimation of nitrogen in
I) C6H5CO NH2  II) Pyridine
III)  C6H5-N=N-C6H5

Question 174 of 180

175. Which of the following vitamin contains ionone ring and
hydrocarbon chain.

Question 175 of 180

176. The molecule which is having maximum number of lone pair

Question 176 of 180

177. Which one of the following oxyacids of chlorine is the least
oxidising in nature

Question 177 of 180

178. Total number of coordination isomers shown by complex  [Co(NH3)6] [Cr(Cl)6] is:

Question 178 of 180

179. 20g of naphthoic acid (C11H8O2) is dissolved in 50g of benzene, then freezing point depression of 2K is observed for solution. The vant hoff factor will be ( Kf for benzene=1.72 Kg Mol-1)

Question 179 of 180

180. If mercury is used as cathode in the electrolysis of aqueous NaCl solution, the ions discharged at cathode are

Question 180 of 180


 



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