NEET Free Mock Test 1

  • Physics
  • Botany
  • Zoology
  • Chemistry

Physics

1. Pick out the wrong statement from the following.

Question 1 of 180

2. 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 2 of 180

3. 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 3 of 180

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

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

Question 6 of 180

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

Question 7 of 180

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

Which of the following statement is correct

Question 8 of 180

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

Question 9 of 180

10. 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 10 of 180

11. 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 11 of 180

12. 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 12 of 180

13. 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 13 of 180

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

Question 14 of 180

15. 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 15 of 180

16. 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 16 of 180

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

Question 17 of 180

18. 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 18 of 180

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

 

Question 19 of 180

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

Question 20 of 180

21. 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 21 of 180

22. A rocket of initial mass  'm0' moving with velocity ‘v’ discharges a jet of gases of mean density ‘ρ’ and effective area ‘A’ the minimum value of ‘v’ of fuel gas, which enables the rocket to rise vertically above is nearly

Question 22 of 180

23. 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 23 of 180

24. 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 24 of 180

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

 

Question 25 of 180

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

Question 26 of 180

27. 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 27 of 180

28. 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 28 of 180

29. 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 29 of 180

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

Question 30 of 180

31. 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 31 of 180

32. 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 32 of 180

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

Question 33 of 180

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

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. 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 36 of 180

37. 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 37 of 180

38. 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 38 of 180

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

Question 39 of 180

40. 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 40 of 180

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

Question 41 of 180

42. 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 42 of 180

43. 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 43 of 180

44. 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 44 of 180

45. 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 45 of 180

Botany

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

Question 46 of 180

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

Question 47 of 180

48. Consider the following statements and select the wrong one

Question 48 of 180

49. Wall less protistans among the following are

Question 49 of 180

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

Question 50 of 180

51. Which of the following is true statement

Question 51 of 180

52. 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 52 of 180

53. 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 53 of 180

54. Which of  the following is a heterosporus fern

Question 54 of 180

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

Question 55 of 180

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

Question 56 of 180

57. The first clinical gene therapy was given for treating

Question 57 of 180

58. Which of the following statement is wrong?

Question 58 of 180

59. Photorespiration is performed by

Question 59 of 180

60.

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 60 of 180

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

Question 61 of 180

62. 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 62 of 180

63. Which one of the following statements regarding enzymes is wrong

Question 63 of 180

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

Question 64 of 180

65. Pioneers of xerarch succession are

Question 65 of 180

66. Select the correct statement

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. 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 68 of 180

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

Question 69 of 180

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

Question 70 of 180

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

Question 71 of 180

72. 1/4 TT : 1/2 Tt : 1/4 tt is the binomial expansion of

Question 72 of 180

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

Question 73 of 180

74. Which of the following four phases, in the post emergence life of an angiospermic plant, begins just after germination of seed and ends when the plant develops the capacity to reproduce ?

Question 74 of 180

75. 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 75 of 180

76. 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 76 of 180

77. In dicotyledonous stem, which of the following is the sequence of tissues from inside to outside?

Question 77 of 180

78. Ψw and Ψpare zero respectively for

Question 78 of 180

79. 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 79 of 180

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

Question 80 of 180

81. The number of Phosphodiester bonds and ester bonds Present in 13.6 nm length DNA

Question 81 of 180

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

Question 82 of 180

83. Identify the correct matched related to plant movements

Question 83 of 180

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

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

Question 84 of 180

85. 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 85 of 180

86. Colchicine is an alkaloid used to double the number of chromosomes (Polyplody). It is obtained from

Question 86 of 180

87. 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 87 of 180

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

Question 88 of 180

89. Go through the diagram given below and indentify the option having correct set of answers

Question 89 of 180

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

Question 90 of 180

Zoology

91. In cockroach the flow of haemolymph is

Question 91 of 180

92. 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 92 of 180

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

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

Question 93 of 180

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

Question 94 of 180

95. If the light source in front of an eye becomes bright suddenly

Question 95 of 180

96. ABO blood group has

Question 96 of 180

97. The diagram shows an antibody molecule. Identify A to F.

Question 97 of 180

98. 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 98 of 180

99. 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 99 of 180

100. Two adaptive radiations are shown in the figure below. Animal ‘B’ acquires the same adaptations as the Animal ‘Q’. This type of evolution is called as

Question 100 of 180

101. A phenomena in which a bee visits a flower at the same time every day is called

Question 101 of 180

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

 

Question 102 of 180

103. 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 103 of 180

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

Question 104 of 180

105. 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 105 of 180

106. 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 106 of 180

107. 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 107 of 180

108. In which one of the following, the genus name, its two characters and its phylum are not correctly matched, whereas the remaining three are correct?

Question 108 of 180

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

Question 109 of 180

110. 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 110 of 180

111. The area where wild populations, traditional life styles and genetic resources are protected is

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. 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 113 of 180

114. Find out the correctly matching set

Question 114 of 180

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

Question 115 of 180

116. 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 116 of 180

117. Satellite DNA is useful tool in

Question 117 of 180

118. What is safe sex period regarding birth control?

Question 118 of 180

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

Question 119 of 180

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

Question 120 of 180

121. 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 121 of 180

122. Choose the wrong statement.

Question 122 of 180

123. 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 123 of 180

124. Implantation of the blastocyst occurs

Question 124 of 180

125. 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 125 of 180

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

Question 126 of 180

127. In Anaphylaxis, IgE interacts with which one of the following biocyte to promote release of inflammatory mediators.

Question 127 of 180

128. Find the incorrect match

Question 128 of 180

129. Select the correct statement from the following

Question 129 of 180

130. In kidneys, renal papillae are part of

Question 130 of 180

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

Question 131 of 180

132. 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 132 of 180

133. Bone can be distinguished from cartilage with

Question 133 of 180

134. 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 134 of 180

135. According to Darwin

I) Inter specific competition is a potent force in organic evolution

II) Evolution was gradual and variations are small and directional

III) Branching decent and Natural selection are two key concepts of evolution

Which of the following statements are correct

Question 135 of 180

Chemistry

136. The vapour pressure of a dilute solution of glucose is 750 mm of Hg at 373K. The mole fraction of solute is

Question 136 of 180

137. 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 137 of 180

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

Question 138 of 180

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

Question 139 of 180

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

 

Question 140 of 180

141. 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 141 of 180

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

Question 142 of 180

143. The hybridisation of Beryllium in Beryllate ion formed when Beryllium hydroxide dissolves in excess of alkali?

Question 143 of 180

144. 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 144 of 180

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

Question 145 of 180

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

Question 146 of 180

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

Question 147 of 180

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

Question 148 of 180

149. 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 149 of 180

150. 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 150 of 180

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

 

Question 151 of 180

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

Question 152 of 180

153. 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 153 of 180

154. 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 154 of 180

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

Question 155 of 180

156. 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 156 of 180

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

Question 157 of 180

158.

Question 158 of 180

159. 75% completion of a first order reaction takes 2.38 hours. How much time will it take for 99.9% completion?

Question 159 of 180

160. Xe has max. EN in:-

Question 160 of 180

161. In  Na2O having antifluorite structure

Question 161 of 180

162. Number of stereoisomers of the given compound

 

Question 162 of 180

163. 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 163 of 180

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

Question 164 of 180

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

 

Question 165 of 180

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

Question 166 of 180

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

Question 167 of 180

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

Question 168 of 180

169. 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 169 of 180

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

Question 170 of 180

171. 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 171 of 180

172. 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 172 of 180

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

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

Question 175 of 180

176. 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 176 of 180

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

 

Question 177 of 180

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

Question 178 of 180

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

Question 179 of 180

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

Question 180 of 180


 



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