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

Question 1 of 180

2. In natural α -decay process occurring in different types of nuclei at rest. Which of the following
is correct?

Question 2 of 180

3. A ‘2Mev’ proton is moving perpendicular to a uniform magnetic field of ‘2.5 Tesla’. The force on the proton is (mass of proton = 1.6 × 10-27 kg)

Question 3 of 180

4. 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 4 of 180

5. 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 5 of 180

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

 

Question 6 of 180

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

Question 7 of 180

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

Question 8 of 180

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

Which of the following statement is correct

Question 9 of 180

10. Pick out the wrong statement from the following.

Question 10 of 180

11. 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 11 of 180

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

Question 12 of 180

13. 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 13 of 180

14. A cart of mass ‘M’ is tied by one end of a massless rope of length ‘10m’. The other end of the rope is in the hands of a man of mass ‘M’. The entire system is on a smooth horizontal surface. The man is at ‘x=o’ and the cart at ‘x=10m’ of the man pulls the cart by the rope , the man and the cart will meet at the point

Question 14 of 180

15. 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 15 of 180

16. 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 16 of 180

17. 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 17 of 180

18. 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 18 of 180

19. 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 19 of 180

20. 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 20 of 180

21. 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 21 of 180

22. 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 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 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 24 of 180

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

Question 25 of 180

26. Of the following the one that is a vector is...

Question 26 of 180

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

Question 27 of 180

28. 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 28 of 180

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

 

Question 29 of 180

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

Question 30 of 180

31. 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 31 of 180

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

Question 32 of 180

33. 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 33 of 180

34. 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 34 of 180

35. 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 35 of 180

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

Question 36 of 180

37. 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 37 of 180

38. 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 38 of 180

39. 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 39 of 180

40. 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 40 of 180

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

Question 41 of 180

42. Diamagnetic materials are substances that...

Question 42 of 180

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

Question 43 of 180

44. 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 44 of 180

45. Fermi is a unit of...

Question 45 of 180

Botany

46. A primary root grows from 10 cm to 30 cm in a day. Calculate the Absolute Growth Rate (AGR) and Relative Growth Rate (RGR) over the period AGR

Question 46 of 180

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

Question 47 of 180

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

Question 48 of 180

49. 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 49 of 180

50. Resistance to shoot and fruit borer is observed in a bhindi variety namely

Question 50 of 180

51. When PS-I is excited with the light of wavelength greater then 680nm, photophosphorylation occurs due to cyclic flow of electrons, results in synthesis of

Question 51 of 180

52. 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 52 of 180

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

Question 53 of 180

54. How many plants among the following have opposite phyllotaxy. China rose, Sun flower, Mustard, Alstonia, Guava, Calotropis and Nerium?

Question 54 of 180

55. The probabilities of homozygous tall, heterozygous tall, and homozygous dwarf plants in F2 generation of a monohybrid cross respectively, is

Question 55 of 180

56. Study the following diagrams & choose the correct option.

Question 56 of 180

57. Meiosis involves

Question 57 of 180

58. 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 58 of 180

59. What is common in all the three, Funaria, Dryopteris and Ginkgo

Question 59 of 180

60. Which of the following statement is wrong?

Question 60 of 180

61. Which of the following is a correct match

Question 61 of 180

62. 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 62 of 180

63. Which is incorrect about coenzyme

Question 63 of 180

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

 

A B C D

Question 64 of 180

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

Question 65 of 180

66. Which of the following is a correct sequence during life cycle of angiosperm for the following terms/ events?

A.Pollen grain

B. Sporogenous tissue

C.Microspore tetrad

D.PMC

E.Male gamete

Question 66 of 180

67. 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 67 of 180

68. Which of the following are correct statements?

j) Pinus and orchid seeds can’t germinate and establish without the formation of mycorrhiza

k) Plants absorbs maximum water from the soil by passive absorption

l) In endodermis region of roots, water follow symplastic pathway

m) High O2 concentration high light intensity induces photorespiration in sciophytes.

n) paper used to compare transpiration from two surfaces of leaf

Question 68 of 180

69. 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 69 of 180

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

 

Question 70 of 180

71. Pioneers of xerarch succession are

Question 71 of 180

72. The biocatalyst ribozyme is synthesized by a process called

Question 72 of 180

73. 1/4 TT : 1/2 Tt : 1/4 tt is the binomial expansion of

Question 73 of 180

74. The first clinical gene therapy was given for treating

Question 74 of 180

75. Consider the following statements and select the number of correct statements

1. Replication of DNA is carried out by semi-conservative method in prokaryotes only

2. Hershey and chase conducted transformation experiments to confirm the genetic nature of DNA

3. Three types of RNA polymerases or formed in the
nucleus of eukaryotes

4. After transcription also gene regulation is possible in eukaryotes

Question 75 of 180

76. 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 76 of 180

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

Question 77 of 180

78. Main function of centromere is

Question 78 of 180

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

Question 79 of 180

80. Exogenous and endogenous spores of sac fungi respectively are

Question 80 of 180

81. 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 81 of 180

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

Question 82 of 180

83. Which of the following are the simple mechanical tissues

Question 83 of 180

84. Which of the following transforms more amount of radiant energy into chemical energy

Question 84 of 180

85. Select the incorrect statements

(i) Cell organelle within cell organelle is plasmosome

(ii) Factory of protein factories is ergosome

(iii) Membraneless non-cell organelle is centrosome

(iv) nucleosomes are ribonucleoprotein bodies

(v) A eukaryotic cell in a eukaryotic cell is vegetative cell

Question 85 of 180

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

Question 86 of 180

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

Question 87 of 180

88. 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 88 of 180

89. Select the correct statement

Question 89 of 180

90. Who of the following scientists is not concerned with O2 release from water in photosynthesis?

Question 90 of 180

Zoology

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

Question 91 of 180

92. 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 92 of 180

93. Olfactory bulbs are extensions of

Question 93 of 180

94. Milk of first transgenic cow Rosie consists

Question 94 of 180

95. 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 95 of 180

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

Question 96 of 180

97. 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 97 of 180

98. 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 98 of 180

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

Question 99 of 180

100. Hormones involved in carbohydrate metabolism are

Question 100 of 180

101. Identical twins are produced when

Question 101 of 180

102. The enzyme which catalysis the following Biochemical reaction is released from which cells

Trypsinogen → Trypsin

Question 102 of 180

103. Consider the following diagrammatic representation of the sectional view of cochlea with certain labeled parts A,B,C and D. Find out the incorrect match w.r.t labeled part and its identification/description.

Question 103 of 180

104. 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 104 of 180

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

Question 105 of 180

106. According to 2001 census report, the population growth rate of India was

Question 106 of 180

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

Question 107 of 180

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

Question 108 of 180

109. Which of the following statements are false/true?
I. Calcitonin lowers blood calcium level
II. Oxytocin stimulates contraction of uterine muscles during birth.
III. Grave’s disease is caused by malfunctioning of adrenal cortex
IV. ADH stimulates absorption of water and increase the urine output.

Question 109 of 180

110. Choose the wrong statement.

Question 110 of 180

111. If due to some injury, the chordae tendinae of the tricuspid valve of the human heart are partially non-functional, what will be the immediate effect?

Question 111 of 180

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

Question 112 of 180

113. All of the following are functions of secretions from (b)  except

 

 

Question 113 of 180

114. Which of the following animal is correctly matched with its genus and two of its characteristics?

 

Question 114 of 180

115. Function of thyrocalcitonin

Question 115 of 180

116. 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 116 of 180

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

Question 117 of 180

118. which of the the following statement is false?

Question 118 of 180

119. Match the Columns and choose the Correct answer

Column I                            Column II

a.National aquatic                   (i) Endoskeleton fully

Animal                                    ossified

b.National Heritage                (ii) Seven cervical

Animal                                      Vertebrae

c.National Bird                        (iii) Sheds scales as

Skin cast

d.National Reptile                   (iv) Longest gestation

Period

(v) Cormorant

Question 119 of 180

120. All of the following are functions of catecholamines, except

Question 120 of 180

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

Question 121 of 180

122. Fill in the blank A involves mating of animals of two different breeds. Hisardale, a new breed of B, has been developed through this mechanism. A B

Question 122 of 180

123. 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 123 of 180

124. 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 124 of 180

125. Epididymis is

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. 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 127 of 180

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

Question 128 of 180

129. 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 129 of 180

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

Question 130 of 180

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

Question 131 of 180

132. Ligament consists of

Question 132 of 180

133. 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 133 of 180

134. 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 134 of 180

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

Question 135 of 180

Chemistry

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

Question 136 of 180

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

 

Question 137 of 180

138. Xe has max. EN in:-

Question 138 of 180

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

Question 139 of 180

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

 

Question 140 of 180

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

Question 141 of 180

142. The most volatile alkane is

Question 142 of 180

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

 

Question 143 of 180

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

Question 144 of 180

145. 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 145 of 180

146. Select species which is planar at nitrogen

Question 146 of 180

147. 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 147 of 180

148. The weight of H2O2present in 80 ml of 10V H2O2 solution is

Question 148 of 180

149. 75% completion of a first order reaction takes 2.38 hours. How much time will it take for 99.9% completion?

Question 149 of 180

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

Question 150 of 180

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

Question 151 of 180

152. 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 152 of 180

153. 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 153 of 180

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

Question 154 of 180

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

Question 155 of 180

156. 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 156 of 180

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

Question 157 of 180

158. 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 158 of 180

159. A possitive carbylamine test is given by

Question 159 of 180

160. Which of the following compound react faster through SN2mechanism

Question 160 of 180

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

Question 161 of 180

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

Question 162 of 180

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

Question 163 of 180

164. 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 164 of 180

165. Which plot is the adsorption isobar for chemisorption.

 

Question 165 of 180

166. Which of the following is not correctly matched?

Question 166 of 180

167. At what temperature will average speed of the molecules of the second member of the series  CnH2n be the same of Cl2 at 6270C?

Question 167 of 180

168. In Kjeldahl ‘s method, the nitrogen gas evolved from 1.325 g sample of a fertilizer is passed into 50.0 mL of 0.2030 N H2SO4mL of 0.1980 N NaOH are required for the titration of unused acid. The percentage of nitrogen in fertilizer is

Question 168 of 180

169. 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 169 of 180

170. Incorrect statement among the following is

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. The plots of 1/ XA Vs 1/YA ( where X and YA are the mole fraction of liquid A in liquid and vapour phase respectively) is linear with slope and intercepts respectively

Question 172 of 180

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

Question 173 of 180

174. Beryllium and aluminium exhibit many properties which are similar. But, the two elements differ in

Question 174 of 180

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

Question 175 of 180

176.

Question 176 of 180

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

Question 177 of 180

178. An oxide of Nitrogen which form reddish brown fumes in air is

Question 178 of 180

179. Which of the following is incorrect for the indicated property

Question 179 of 180

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

Question 180 of 180


 



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