NEET Free Mock Test 1

  • Physics
  • Botany
  • Zoology
  • Chemistry

Physics

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

 

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. A balloon of mass ‘m’ is found to accelerate up at the rate of g/6. The amount of water should be put inside the balloon so that it accelerates down at rate of g/6. (Assume buoyancy force remains the same)

Question 4 of 180

5. 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 5 of 180

6. 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 6 of 180

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

Question 7 of 180

8. 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 8 of 180

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

 

Question 9 of 180

10. 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 10 of 180

11. 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 11 of 180

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

 

Question 12 of 180

13. 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 13 of 180

14. 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 14 of 180

15. 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 15 of 180

16. Pick out the wrong statement from the following.

Question 16 of 180

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

Question 17 of 180

18. 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 18 of 180

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

Question 19 of 180

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

Question 20 of 180

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

Question 21 of 180

22. 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 22 of 180

23. P-V diagram of a diatomic gas is a straight line passing through origin. The molar heat capacity of the gas in the process will be

Question 23 of 180

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

Question 24 of 180

25. 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 25 of 180

26. 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 26 of 180

27. 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 27 of 180

28. 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 28 of 180

29. 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 29 of 180

30. To charge a secondary cell, what is needed is...

Question 30 of 180

31. A square coil of side ‘25cm’ having 1000 turns is rotated with a uniform speed in a magnetic field about an axis perpendicular to the direction of the field. At an instant ‘t’ the ‘e.m.f’ induced in the coil is E= 200 sin100πt. The strength of the magnetic field is (in Tesla)

Question 31 of 180

32. Magnetic moment and angular moment of revolving electron in a hydrogen atom ‘M’ and ‘L’ respectively then

Question 32 of 180

33. 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 33 of 180

34. The amount of radiation emitted by a perfectly black body is proportional to

 

Question 34 of 180

35. A cable stretches by amount 'a' under a certain load. If it is replaced by a cable of the same material but half as long and half the diameter, the same load will stretch it by...

Question 35 of 180

36. Mark out the incorrect statement regarding transverse standing waves on a string

Question 36 of 180

37. 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 37 of 180

38. 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 38 of 180

39. 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 39 of 180

40. 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 40 of 180

41. The horizontal component of a force of 10 N inclined at 30° to the vertical is...

Question 41 of 180

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

Question 42 of 180

43. 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 43 of 180

44. 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 44 of 180

45. 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 45 of 180

Botany

46. The fruit of Annona squamosa (custard apple) develops from

Question 46 of 180

47. Which of the following is true statement

Question 47 of 180

48. Select the wrong match for microbial products

Question 48 of 180

49. The following is not a fungal plant disease

Question 49 of 180

50. Read carefully the table and fill up the blanks;

A,B,C and D in the above table refer to

Question 50 of 180

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

Question 51 of 180

52. S-I : Linked genes get separated due to crossing over

S-II : The closer the genes on a chromosome the more is the probability of recombinations

Question 52 of 180

53. Which of the following statements are correct

A. Guttation is the manifestation of root pressure

B. Natural antitranspirant is PMA

C. Turgor pressure, wall pressure
and pressure potential of a cell, all are numerically equal with same sign

D. High nitrogen to carbon ratio is found in Ureids

Question 53 of 180

54. Find out the incorrect pair

Question 54 of 180

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

Question 55 of 180

56. Structures observed both in prokaryotic and eukaryotc cells are

Question 56 of 180

57. 1/4 TT : 1/2 Tt : 1/4 tt is the binomial expansion of

Question 57 of 180

58. 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 58 of 180

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

 

A B C D

Question 59 of 180

60. 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 60 of 180

61. Select the correct statement

Question 61 of 180

62. Primary succession results in formation of communities on area

Question 62 of 180

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

Question 63 of 180

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

Question 64 of 180

65. Exogenous and endogenous spores of sac fungi respectively are

Question 65 of 180

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

Question 66 of 180

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

Question 67 of 180

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

Question 68 of 180

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

Question 69 of 180

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

Question 70 of 180

71. Find out mismatch

Question 71 of 180

72. A pure pea plant having yellow pods and yellow cotyledons is crossed with another pure pea plant having green pods and green cotyledons. What will be the ratio of recombinants and non-recombinants in F2 generation?

Question 72 of 180

73. Select the nutritive tissue in the structure of anther

Question 73 of 180

74. 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 74 of 180

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

Question 75 of 180

76. The correct sequence of electron acceptors in respiratory electron transport is

Question 76 of 180

77. 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 77 of 180

78. Which of the following is a wrong match?

Question 78 of 180

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

Question 79 of 180

80. Mesokaryotic condition and mixotrophic nutrition are found, respectively, in

Question 80 of 180

81. Identify the set of plants without archegonia

Question 81 of 180

82. Which of the following kinds of plants fix carbon dioxide by Crassulacean Acid Metabolism (CAM) pathway

Question 82 of 180

83. A family not delimited by the type of inflorescence is

Question 83 of 180

84. An abnormality in humans called ‘Sickle cell anemia’ is resulted due to point mutation leading to the change of

Question 84 of 180

85. DNA polymerase enzyme used in PCR technique is isolated from

Question 85 of 180

86. Which of the following are the simple mechanical tissues

Question 86 of 180

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

Question 87 of 180

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

Question 88 of 180

89. Identify the correct matched related to plant movements

Question 89 of 180

90. Find out the correctly matched one

Question 90 of 180

Zoology

91. Select the correct statement from the following

Question 91 of 180

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

Question 92 of 180

93. 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 93 of 180

94. Hormones involved in carbohydrate metabolism are

Question 94 of 180

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

Question 95 of 180

96. If a female having gene for haemophilia and colour blindness on its one chromosome marries a normal male, then what are the chances in their offspring

Question 96 of 180

97. 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 97 of 180

98. 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 98 of 180

99. The embryonic membrane involved in the formation of placenta in human is

Question 99 of 180

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

Question 100 of 180

101. The Epithelium given  below is not found in

Question 101 of 180

102. 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 102 of 180

103. The concentration of DDT is increased at successive trophic levels in a food chain, through

Question 103 of 180

104. Consider the following statements
I) The fertile top soil is removed by human activities like over – cultivation, unrestricted grazing, deforestation and poor irrigation practices
II) Desertification has become a major problem due to increased urbanization.
Which of the statements given above is/are correct?

Question 104 of 180

105. A tumour in the adrenal zona glomerulosa may cause hypersecretion of the hormones in that region. Which of the following you might expect to find in a patient with such a tumour?

Question 105 of 180

106. When Glomerular filtrate  is passing through PCT which of the following Biomolecule’s selective reabsorption is 100% into PTC

B1)Creatinine               B2) Glucose

B3) Amino Acids           B4)  Potassium

Question 106 of 180

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

Question 107 of 180

108. 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 108 of 180

109. Observe the following

The above device is used to

Question 109 of 180

110. 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 110 of 180

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

Question 111 of 180

112. 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 112 of 180

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

Question 113 of 180

114. The three-chambered heart of frog is not as efficient as the human heart with four chambers, because

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. Choose the wrong statement.

Question 116 of 180

117. 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 117 of 180

118. A sensitized Rh --ve woman gives birth dizygotic twins with different Rh phenotypes then

Question 118 of 180

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

Question 119 of 180

120. Alienate the number of  incorrect statement(s)

S1: Laccifer lacks circulatory system.

S2: Neries have nephridia but no nephrons

S3: Silver fish is Non-operculate marine fish

S4: Neophron has both neurons and nephrons

 

Question 120 of 180

121. Milk of first transgenic cow Rosie consists

Question 121 of 180

122. Which of the following is correct match w.r.t. human ancestor, its cranial capacity and certain feature?

Question 122 of 180

123. Bundle of His is a network of:

Question 123 of 180

124. 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 124 of 180

125. 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 125 of 180

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

Question 126 of 180

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

Question 127 of 180

128. 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 128 of 180

129. 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 129 of 180

130. 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 130 of 180

131. Identical twins are produced when

Question 131 of 180

132. 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 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. Which is correctly labeled with respect to the given diagram?

Question 134 of 180

135. Following is a diagrammatic representation of a nephron showing blood vessels, duct and tubule. These structures have been labelled as A, B, C etc., Answer the questions that follow.

(i) Which parts are located in cortical region of kidney?

(ii) Which structure is highly reduced in cortical nephrons?

(iii) Identify the part F. (iv) Which parts collectively form Malpighian body?

Question 135 of 180

Chemistry

136. 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 136 of 180

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

Question 137 of 180

138. 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 138 of 180

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

Question 139 of 180

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

 

Question 140 of 180

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

Question 141 of 180

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

 

Question 142 of 180

143. The pair of molecules having same geometry and same bond angles are

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

Question 145 of 180

146. For decolourization of one mole of KMnO4 the required litre of 30 volume H2O2 in acidified medium is

 

Question 146 of 180

147. 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 147 of 180

148. The standard reduction potential for  Cu+2/ Cu  is +0.34V.Calculate the reduction potential at pH=14
for the above couple.   Ksp of Cu(OH)2= 1.0×10-19

Question 148 of 180

149. What would be the product formed when 1-bromo-3 chloro cyclo butane reacts with two equivalents of metallic sodium in ether

Question 149 of 180

150. 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 150 of 180

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

Question 151 of 180

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

D)

 

Question 152 of 180

153. Which of the following is not correctly matched?

Question 153 of 180

154. Select species which is planar at nitrogen

Question 154 of 180

155.

Question 155 of 180

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

Question 156 of 180

157. The most volatile alkane is

Question 157 of 180

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

Question 158 of 180

159. The correct statement among the following is:
i) NaBH4 produce BH6 on reaction with I2

ii) Reaction between B2H6 and NMe3 is an acid base reaction

iii) BH6 is produced on industrial scale by reaction with BF3, NaH

iv) Boranes on hydrolysis produce
B2H6 and H2 gas

 

 

 

Question 159 of 180

160. An acid-base indicator has a In Kln of 3 ×10-5. The acid form of indicator is red and the basic form is blue.
Then

Question 160 of 180

161. What will be the equivalent weight of H3PO3 in the following reaction. 4H3PO3 → 3H3PO4 +PH3

Question 161 of 180

162. 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 162 of 180

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

Question 163 of 180

164.

Incorrect statements about X and Y are

Question 164 of 180

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

Question 165 of 180

166. When two moles of an ideal gas (Cpm=(5/2)R) heated from 300K to 600K at constant pressure. The change in entropy of gas (∆s ) is

Question 166 of 180

167. 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 167 of 180

168. Addition of dilute HCl or FeCl3 solution to freshly precipitated ferric hydroxide, a red coloured colloidal solution is obtained. The phenomenon is known as

Question 168 of 180

169. 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 169 of 180

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

 

Question 170 of 180

171. Which of the following C – H bond has the least bond dissociation energy

Question 171 of 180

172. In  Na2O having antifluorite structure

Question 172 of 180

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

Question 173 of 180

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

Question 174 of 180

175. Xe has max. EN in:-

Question 175 of 180

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

Question 176 of 180

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

Question 177 of 180

178. Assertion: Graphite is thermodynamically most stable allotrope of carbon
Reason: ΔHf0 of graphite is taken as zero

Question 178 of 180

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

Question 179 of 180

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

Question 180 of 180


 



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