NEET Free Mock Test 1

  • Physics
  • Botany
  • Zoology
  • Chemistry

Physics

1. Fermi is a unit of...

Question 1 of 180

2. Two coherent sources of intensity ratio 1:4 produce an interference pattern the fringe visibility will be

 

Question 2 of 180

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

Question 3 of 180

4. The energy stored in the electric field produced by a metal sphere is ‘4.5 joule’. The charge on the sphere is  '4μc' its radius will be  [(1/4πε0)=9×109    N - m2c-2]

Question 4 of 180

5. 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 5 of 180

6. A block of mass 10kg moving in X-direction with a constant speed of  10 msec-1, is subjected to a retarding force F = (x/10) (Joule/meter) during its travel from x=10m to x=20m its final kenetic energy will be (in Joule)

 

Question 6 of 180

7. 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 7 of 180

8. The velocity at the maximum height of a projectile is half of its initial velocity ‘u’. Its range on the horizontal plane is

Question 8 of 180

9. Diamagnetic materials are substances that...

Question 9 of 180

10. A diatomic ideal gas is used in carnot engine as the working substance if during the adiabatic part of the cycle the volume of the gas increases from ‘V’ to ‘32V’. The efficiency of the engine is

 

Question 10 of 180

11. Four identical hollow cylindrical columns of mild steel support a big structure of mass 88000 kg. The inner and outer radii of each column are 30cm and 40cm respectively. Assuming load distribution is uniform. The compressional strain of each column is (Y = 2×1011  N/m2 )

Question 11 of 180

12. At which of the following temperatures would the molecules of a gas have twice the average kinetic energy they have at 20 °C

Question 12 of 180

13. Two infinitely long parallel wires having linear charge densities 'λ1'and 'λ2' respectively are placed at a distance ‘R’. The force per unit length on either wire will be (k = (1/4πε0))

Question 13 of 180

14. 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 14 of 180

15. 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 15 of 180

16. 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 16 of 180

17. 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 17 of 180

18. A projectile is thrown in the direction making an angle θ with the horizontal. The projectile attains maximum height for θ equal to...

Question 18 of 180

19. The length of a potentiometer wire is l. A cell of emf ‘e’ is balanced at a length l/5 from the positive end of the wire. Assuming there is no contribution in resistance from any part of the circuit except the potentiometer wire, the balancing length for the same cell if length of the wire is increased by l/2 is

Question 19 of 180

20. The acceleration due to gravity on Mars is 3.7 m/s² . Compared with her mass and weight on the earth, an astronaut on Mars has...

Question 20 of 180

21. The primary effect when the source is moving is a change in...

Question 21 of 180

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

 

Question 22 of 180

23. The radius of the planet is ‘R’ A satellite revolves around it in a circle of radius ‘r’ with an angular velocity ‘ω’. The acceleration due to the gravity onthe planet surface is

Question 23 of 180

24. A radiation of energy ‘E’ falls normally on a perfectly reflecting surface. The momentum  transferred to the surface is (C is the Velocity of light )

Question 24 of 180

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

 

Question 25 of 180

26. A paramagnetic sample shows a net magnetization of 8 A/m when placed in an external magnetic field of 0.6 T at a temperature of 4 K. When the same sample is placed in an external magnetic field of 0.2 T at a temperature of 16 K, the magnetization will be

Question 26 of 180

27. Which of the following combinations should be selected for better tuning of an L.C.R series circuit used for communication

 

Question 27 of 180

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

Question 28 of 180

29. Two metal spheres are falling through a liquid of density  2 × 103 kg/m3  with the same uniform speed. The material density of sphere ‘1 and 2’ are  8 × 103 kg/m3  and 11 × 103 kg/m3   The ratio of their radii is

Question 29 of 180

30. One mole of an ideal gas at temperature ‘'T1' expands according to the law (P/V) = constant expression for the workdone when its final temperature becomes 'T2'  is

Question 30 of 180

31. Calorie is defined as the amount of heat required to raise temperature of 1g of water by 10C and it is defined under which of the following conditions

 

 

Question 31 of 180

32. Two equal masses ‘A and B’ moving along the same straight line with velocities 3i m/sec  and '-5i m/sec respectively collide elastically. Their velocities after the collision will be respectively

Question 32 of 180

33. A single slit of width ‘0.1mm’ is illuminated by a parallel beam of light of wave length and diffraction bands are observed on a screen ‘0.5m’ from the slit. The distance of the third dark band from the central bright band is

 

Question 33 of 180

34. If the velocity v of a particle moving along a straight line decreases linearly with its displacement ‘S’ from 20ms-1 to a value approaching zero at S=30m. Then acceleration of the particle at S=15m is

Question 34 of 180

35. An electric cell of e.m.f ‘E’ is connected across a copper wire of diameter ‘d’ and length 'l' the drift velocity of electron in the wire is 'vd' If the length and diameter of the wire are doubled the new drift velocity of electron is

Question 35 of 180

36. A variable frequency A.C. source is connected to a capacitor. How will the displacement current change with decrease in frequency?

Question 36 of 180

37. A nucleus of mass 'M + ∆m'  is at rest and decays into two daughter nuclei of equal mass '(M/2)' each speed of light is ‘C’. The speed of daughter nuclei is

Question 37 of 180

38. A uniform magnetic field B is directed out of the page. A metallic wire has the shape of a square frame and is placed in the field as shown. While the shape of the wire is steadily transformed into a circle in the same plane, the current in the frame

Question 38 of 180

39. Which logic gate is represented by the following combination of logic gates

Question 39 of 180

40. 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 40 of 180

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

Question 41 of 180

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

Question 42 of 180

43. To keep a vehicle moving at the speed v requires a force F. The power needed is...

Question 43 of 180

44. The image a camera forms on the film is...

Question 44 of 180

45. A Carnot engine operates between 800K and 200K. If it absorbs 8 kJ of heat in each cycle, the work done by it per cycle is...

Question 45 of 180

Botany

46. Which of the following statement is wrong?

Question 46 of 180

47. Which of the following is less general in characters compared to family

Question 47 of 180

48. In the given diagrams the correct labelling of A, B, C, D, respectively, is

Question 48 of 180

49. Read the following character given with respect to short distance transport and identify correct combination
Property                Simple diffusion               Facilitated diffusion            Activetransport
I) Requires special              Yes                                       No                                    Yes
membrane proteins
II) Requires ATP energy      No                                       No                                   Yes
III) Highly selective              Yes                                      Yes                                   No
IV) Uphill transport              No                                      No                                   Yes

Question 49 of 180

50. In dicot roots, the pericycle gives rise to

Question 50 of 180

51. Synthesis of human insulin in E.coli cells is the best evidence for

Question 51 of 180

52. Which one among the following represents the correct method of replication of DNA

Question 52 of 180

53. Deficiency of the following nutrients causes inhibition of cell division, delay in flowering and chlorosis

Question 53 of 180

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

Question 54 of 180

55. Select the nutritive tissue in the structure of anther

Question 55 of 180

56. 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 56 of 180

57. Among the following the no. of asexual reproductive structures is/are Gemmae of Marchantia, Epiphyllous buds of Bryophyllum, Bulbils of Agave Rhizome of zinger, Tuberous stem of potato, Offsets of Pistia, Zoospores of Chlamydomonas, Hormogonia of Nostoc

Question 57 of 180

58. DNA with one strand labeled with radioactive thymidine. Allowed to replicate in normal nutrient medium for three generations. Then proportion of DNA molecules showing radioactivity is

Question 58 of 180

59. Eight bacteria kept in cup divide repeatedly and produce 64 bacteria in 2 hours. Find the time consumed in binary fission.

Question 59 of 180

60. Anticodon is a base triplet present on

Question 60 of 180

61. Ability of sigma to recognise the pollen whether it is of right type or the wrong type

Question 61 of 180

62. Root nodules (tubercles) are found on

Question 62 of 180

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

 

A B C D

Question 63 of 180

64. The ploidy levels of embryo, perisperm and endosperm in the seeds resulted by crossing 4n female and 6n male plants of piper nigrum, respectively, are

Question 64 of 180

65. Which inflorescences are of similar type?

Question 65 of 180

66. Identify the set of plants without archegonia

Question 66 of 180

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

Question 67 of 180

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

Question 68 of 180

69. 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 69 of 180

70. 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 70 of 180

71. Krebs cycle starts with the formation of six carbon compound by a reaction between

Question 71 of 180

72. 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 72 of 180

73. Which of the following cannot freely interbreed in nature

A. Winter and spring varieties of wheat

B. LDP and SDP varieties of Tobacco

C. Tall and Dwarf varieties of Pea

D. Red and white flowered varieties of Dog flower

Question 73 of 180

74. How many chromosomes will be found in a cell at anaphase –II having 2n = 50 ?

Question 74 of 180

75. Which of the following instruments are correctly matched, except?

i) Potometer – Transpiration rate

ii) Atmometer – Demonstrate transpiration pull

iii) Auxanometer – Growth measurement

iv) Ganog’s light screen – Measure light intensity

v) Manometer – Demonstreate toot pressure

Question 75 of 180

76. Match the columns, I, II and III and choose the correct combination from the options given

 

Question 76 of 180

77. Which of the following is true statement

Question 77 of 180

78. In garden pea, round shape of seeds is dominant over wrinkled shape. A pea plant heterozygous for round shape of seed is selfed and 1600 seeds produced during the cross are subsequently germinatied. How many seedlings will have the parental  phenotype?

Question 78 of 180

79. Which of  the following is a heterosporus fern

Question 79 of 180

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

 

Question 80 of 180

81. The assemblage of all the population of different species that function as an integrated unit through coevolved metabolic transformation in a specific area is called

Question 81 of 180

82. 1/4 TT : 1/2 Tt : 1/4 tt is the binomial expansion of

Question 82 of 180

83. Match Column I with Column II and select the correct option

Column – I                         Column - II

  1. Ascomycetes                  i) Ustilago
  2. Phycomycetes               ii) Saccharomyces
  3. Basidionycetes              iii) trichoderma
  4. Deuteromycetes           iv) Albugo

Question 83 of 180

84. Which of the following is a correct match

Question 84 of 180

85. Exogenous and endogenous spores of sac fungi respectively are

Question 85 of 180

86. The following set of cell organs are included in endomembrane system

Question 86 of 180

87. Which of the following statements about classification is true?

i) Members of a family are less similar than members of an included genus

ii) An order has more members than the number of members in as included genus

iii) Families have more members than  phyla

iv) Members of a family share a common ancestor in the more distance past than members of an included genus

v) The number of species in a taxon depends on their relative degree of similiarity

Question 87 of 180

88. Which of the following statements is true

Question 88 of 180

89. A common step for both aerobic and anaerobic respiration is

Question 89 of 180

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

Question 90 of 180

Zoology

91. How many of the following statements are wrong w.r.t. STDs?

A. AIDs is the most dangerous STD.

B. Hepatitis B, genital herpes and HIV infection are not curable

C. Ectopic pregnancy and cancer are not included under the complications of STDs

D. The incidence of STDs are reported to be very high among persons in the age group of 15-24 yearsx

Question 91 of 180

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

Question 92 of 180

93. In which one of the following options the two examples are correctly matched with their particular type of immunity?
Examples                                                                   Type of immunity
1) Polymorphonuclear

leucocytes and monocytes                                      Cellular barriers
2) anti-tetanus and anti-snake

bite injections                                                            Active immunity
3) Saliva in mouth and

tears in eyes                                                              Physical barriers
4) mucous coating of epithelium lining                Physiological barriers
the urinogenital tract and the HCl in stomach

Question 93 of 180

94. which of the the following statement is false?

Question 94 of 180

95. 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 95 of 180

96. Select the synovial joint which is exclusive to Axial skeleton

Question 96 of 180

97. What is common to whale, seal and shark?

Question 97 of 180

98. Correct sequence of hormone secretion from beginning of menstruation is

Question 98 of 180

99. Bone can be distinguished from cartilage with

Question 99 of 180

100. Identify the molecules (a) and (B) shown below and select the right option giving their source and use.

Molecule                                     Source                                       Use
1) A - Cocaine                   Erythroxylum coca                Accelerates the                                                                                                                           transport of dopamine
2) B - Heroin                    Cannabis sativa                      Depressant and slows down                                                                                                     body functions
3) B - Cannabinoid              Atropa belladonna            Produces hallucinations
4) A - Morphine               Papaver somniferum            Sedative and pain killer

Question 100 of 180

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

Question 101 of 180

102. Which of the following is responsible for rejection of graft ?

Question 102 of 180

103. Satellite DNA is useful tool in

Question 103 of 180

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

Question 104 of 180

105. Ligament consists of

Question 105 of 180

106. ‘Penicillin rich medium proves detrimental to bacteria but not beneficial to Penicillium which releases it’. This association can be symbolized as

Question 106 of 180

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

Question 107 of 180

108. Who was awarded the three prizes widely regarded as the triple crown of biology

Question 108 of 180

109. Observe the following

The above device is used to

Question 109 of 180

110. 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 110 of 180

111. 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 111 of 180

112. 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 112 of 180

113. The correct match for structures of cockroach is
Column-I                                                  Column-II
A. Ommatidia                             I. Articulates with thorax
B. Trochanter                             II. For vision
C. Coxa                                        III. Forming exoskeleton
D. Sclerites                                  IV. Fused with large and                                                                  stout femur

Question 113 of 180

114. The four structure listed are part of the human excretory system.
I. Bladder II. Kidney III. Ureter IV. Urethra
In which order does a molecule of urea pass through these structures?

Question 114 of 180

115. Consider the following features:

A. Exclusively marine, radially symmetrical diploblastic organisms with tissue level of organisation.

B. The body bears eight external rows of ciliary comb plates.

C. Digestion is both extracellular and intracellular

D. Exhibit bioluminescence

E. Monoecious, fertilisation external with indirect development The above-mentioned features belong to the animal

Question 115 of 180

116. 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 116 of 180

117. When light incidents on photoreceptor cells of the retina of eye ,their membrane is

Question 117 of 180

118. According to Forestry Commission Report 1997 the total forest cover of India:

Question 118 of 180

119. Read the following statements

A : A considerable amount of NPP is utilised by plants in respiration

B: The annual NPP of the whole biosphere is approximately 170 billion tons of organic matter

Question 119 of 180

120. Amniocentesis is a technique

Question 120 of 180

121. Choose the combination of conditions in a tissue that would influence the most rapid dissociation of oxyhaemoglobin.

Question 121 of 180

122. Nephrostome occurs in

Question 122 of 180

123. Find out the correctly matching set

Question 123 of 180

124. What is safe sex period regarding birth control?

Question 124 of 180

125. Implantation of the blastocyst occurs

Question 125 of 180

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

Question 126 of 180

127. Following is a diagrammatic representation of endocrine glands with a labelled part ‘A’. The part ‘A’ serves as the connection between

Question 127 of 180

128. In the resting muscle fiber, tropomyosin partially covers

Question 128 of 180

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

Question 129 of 180

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

Question 130 of 180

131. Which of the following statements correctly defines the phenomenon of genetic drift?
I. Random change in gene allele frequency
II. Occur by chance
III. It is directional
IV. Causes elimination of certain alleles
V. Causes fixation of alleles
The correct combination is

Question 131 of 180

132. The following depiction is the karyotype of “Cinderalla of genetics”

The sex of the Hexapod should beThe sex of the Hexapod should be

Question 132 of 180

133. Observe the relaxed myocyte’s myofibril

Which of the following muscles have those traits?

a) Lateral rectus muscle

b) Iris muscles

c) Ciliary muscles

d) Sartorius muscle

Question 133 of 180

134. Based on observations made during a sea voyage in a sail ship called H.M.S. Beagle, Charles Darwin concluded that

Question 134 of 180

135. Given below is an incomplete table about certain hormones, select the option that correctly fills the blanks A,B and C

A          B          C

 

Question 135 of 180

Chemistry

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

Question 136 of 180

137. To form osazone, mumber of moles of phenyl hydrazine  required by one mole of glucose is

 

Question 137 of 180

138. Which artificial sweetner contains chlorine

 

Question 138 of 180

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

Question 139 of 180

140. The values of electro negativity of atoms A and B are 1.20 and 4.0 respectively. The percentage ionic character of A-B bond is

Question 140 of 180

141.

 

 

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

Question 141 of 180

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

Question 142 of 180

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

Question 143 of 180

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

 

Question 144 of 180

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

Question 145 of 180

146. 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 146 of 180

147. Which of the following compound react faster through SN2mechanism

Question 147 of 180

148. 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 148 of 180

149. Most basic and acidic oxides are formed by the following 3rd period elements.

Question 149 of 180

150. Which plot is the adsorption isobar for chemisorption.

 

Question 150 of 180

151. 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 151 of 180

152. Which of the following is not correctly matched?

Question 152 of 180

153. In which of the following pairs, both the species are not isostructural?

Question 153 of 180

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

Question 154 of 180

155. 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 155 of 180

156. Which of the following ‘gem’ diols is stable?

Question 156 of 180

157. 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 157 of 180

158. Copper crystallizes in fcc with a unit cell length of 361 pm. What is the radius of copper atom?

Question 158 of 180

159. The number of carbon atoms per unitcell of diamond unitcell is

Question 159 of 180

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

Question 160 of 180

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

Question 161 of 180

162. Iron sulphide is heated in air to form ‘A’ . ‘A’ is dissolved in water to give ‘Y’. The basicity of ‘Y’ is

Question 162 of 180

163. 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 163 of 180

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

 

Question 164 of 180

165. 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 165 of 180

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

Question 166 of 180

167. Which of the following amines form N-nitroso derivative when treated with NaNO2 and HCl

Question 167 of 180

168. Xe has max. EN in:-

Question 168 of 180

169. V1 ml of 3M HCl solution is mixed with V2ml of 3M H2SO4 to from a solution in which molarity of H+ ions is 5M, then the relation between V1and V2is

 

Question 169 of 180

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

Question 170 of 180

171. Aqueous solutions of two compounds M-O-H and M1-O-H have been prepared in two different
beakers. If the electronegativity of M=3.5, M1=0.9, O=3.5 and H=2.1, then the solutions respectively are

Question 171 of 180

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

Question 172 of 180

173. Select species which is planar at nitrogen

Question 173 of 180

174. The conductivity of saturated solution of BaSO4is 3.06×10-6  mho cm-1and its equivalent conductance is 1.53 mho cm-2 eq-1. Then Ksp for BaSO4 will be

Question 174 of 180

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

Question 175 of 180

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

Question 176 of 180

177. If lone pair of electron occupy axial position then, incorrect about is :

 

Question 177 of 180

178.

Question 178 of 180

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

Question 179 of 180

180. 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 180 of 180


 



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