1. What does the relation deltax x deltap 4/4pie

(1) De-Broglie equation Schrodinger's wave equation represent? Heisenberg's uncertainty principle Pauli's exclusion principle

2. The angular momentum quantum number is denoted by which letter? n s m L

3. "No two electrons in an atom can have same set of four identical quantum numbers." It is the statement of Aufbau's principle Hund's rule Pauli's exclusion principle None of these

4. The effective nuclear charge zeta is nearly equal to the nuclear charge for which orbital? Is orbital Outermost orbital 2p orbital Total nuclear charge of all orbitals

5. Match the molecules and geometry according to valence shell electron pair repulsion theory for the following molecules

Molecules Geometry
i. NHs a. Linear
ii. CIFs b. V-shaped
iii. ICI­2 c. T-shaped
iv. H2O d. Trigonal bipyramidal
v. SF4 e. Pyramidal i-d ii-c iii-b iv-e v-a i-e n-c iii-a iv-b v-d i-b ii-d iii-c iv-a v-e i-c ii-e iii-d iv-a v-b

6. The molecule among CCI4, PCIs' SF4 and NH3, which does not contain lone pair of electrons around the central atom is CCI4

(2) PCls SF4

(4) NH3


7. What IS the bond order of carbon monoxide as per the molecular orbital configuration Four
Six Three Eight

8. As per Fajans' rules the formation of which bond in an ionic molecule is favoured when the cation has high positive charge, small size and ns2p6d10 configuration while the anion has high negative charge and large size? Valence bond Ionic bond Covalent bond Co-ordination bond

9. The magnitude of forces of attraction between the molecules of polar as well non-polar substances is maximum in case of solids liquids gases colloids as

10. s-block elements consist of metals highly electro-positive elements low electro-positive elements highly electro-negative elements moderately electro-negative elements

11. Alkali metals have minimum effective nuclear charge and hence they have the smallest atomic radii smallest atomic radii in their respective periods largest atomic radii • largest atomic radii in their respective periods

12. Diagonal relationship existing between a pair of s-block elements can be explained on the basis of atomic volume and density metallic and non-metallic character polarising power and electronegativity atomic and ionic radii


13. The hydrides of the elements of which group are electron deficient and act as Lewis acid? Gr. IA Gr. lIlA Gr. !VB Gr. IE

14. Electron diffraction and X-ray measurements have shown that tetrasulphur tetranitride (S4N4) molecule has a tetrahedral structure an eight-membered cradle ring structure an eight-membered puckered ring structure a six-membered ring structure

15. Which halogen cannot form any interhalogen compound? Iodine Chlorine Bromine Fluorine

16. Perovskite is the mineral having structure

CaTiOs

FeTiOs

MgTio3

MgAl2o4

17. All of the following statements about the transition elements are true except that, all of the transition elements are metallic in aqueous solution many of their simple ions are coloured most of these elements show only one valence state most of these elements show pronounced catalytic activity

18. The purple colour of ion is due to unpaired d-electron transfer of an electron presence of water molecule reflection of light

19. In CoCls . 6NHS' CoCls 5NHS' CoCI3 • 4NH3 and CoCl3 • 3NH3 since the secondary valency of Co atom is six, each amine has trigonal planar geometry tetrahedral geometry linear geometry octahedral geometry

20. The proper name of the compound [Co(NHs)sCos]CI is Pentaammine carbonato cobalt chloride Carbonato pentaammine cobalt chloride Chloro pentaammine cobalt carbonate Pentaammine carbonato cobalt chloride

21. For a d6 system with an octahedral symmetry, the difference between CFSE for high spin and low spin configurations amounts to (delta 0 and P have their usual meaning) 2 delta0 -2P 2 delta0 -4P 2 delta0 -2P 2 delta0

22. Silica readily dissolves in HF HCI HI HNO3

23. CFSE for a high spin octahedral system is zero. Its electronic distribution is <img src='./qimages/3399-23.jpg'> 24. The CFSE for d4 configuration for high spin complexes is -0·4 delta0 -0·6 delta0

(3) -0·8 delta0

(4) -1·2 delta0

25. The most common oxidation state of lanthanides is 4 3 5 7

26. On alkylation of diborane, the product formed is hexaalkyl diborane tetraalkyl diborane dialkyl diborane None of these

27. Among the following lanthanides, the smallest size is that of Cerium Dysprosium Thulium Ytterbium

28. The first actinide metal which resembles a lanthanide is Neptunium Americium Berkelium Uranium

29. The principal oxidation state of thorium is 4 3 2 5

30. Fe(CO)5 has a geometry which is octahedral trigonal bipyramidal square pyramidal None of these

31. Unsaturated hydrocarbons can be separated from alkanes by the complex formed between this metal and the unsaturated hydrocarbon. Pt Ag Au Zn

32. Which of the halide ions causes larger d orbital splittings F-
33. The infra-red absorption spectrum of Fe2(CO)g indicates how many types of carbonyl groups in the complex? 1

(2)2

(3)3

(4) Not clear

34. The temperature above which an antiferromagnetic complex shows paramagnetic behaviour is called Curie temperature Neel temperature Critical temperature . Theta temperature

35. When an alkene molecule complexes with a metal, the alkene is susceptible to attack by Electrophiles Nucleophiles Both and None of these

36. The complex [NiCI4]2-and respectively diamagnetic, paramagnetic diamagnetic, diamagnetic paramagnetic, diamagnetic paramagnetic, paramagnetic

37. According to Curie's law, the paramagnetic susceptibility absolute temperature as <img src='./qimages/3399-37.jpg'> does not depend on temperature None of the above is related to the

38. The catalyst formed by the combination of TiCl4 and Al(C2Hs)3 is called the Wilkinson's catalyst Ziegler -Natta catalyst Lazier catalyst Nishimura catalyst

39. A polynuclear metal carbonyl which does not contain a bridging carbonyl group is Fe2(CO)9 Co4(CO)12 Co2(CO)8 All of the above

40. The splitting energy increases in the order <img src='./qimages/3399-40.jpg'>

41. The condition that arises due to excessive intake of iron to toxic level is Hemochromatosis Transferrins Ovotransferrins Lactoferrin

42. The rate of hydrolysis of ATP by an active ion pump is directly related to concentration of Na ions concentration of K ions concentration of Mg 2 ions concentration of Na and K ions in presence of Mg 2

43. The acid or base property of a the limitation of substance is not inherent in the substance itself, is Arrhenius concept Bronsted -Lowry concept Protonic concept Auto-ionisation concept

44. According to Bronsted concept, the basicity ofthe anions derived from CH4, NH3, H20 and HF is in the order of <img src='./qimages/3399-44.jpg'> 45. Which of the following are Lewis acids and Lewis bases

H s03' phenol, H20, ROH Acids: 803' phenol
Bases: ROH
Acids: 803' H20
Bases: -Phenol, ROH Acids: H ROH
Bases: -Phenol, H20, 803
All are acids

46. When acetic acid (CH3COOH) is dissolved in liq. NH3 (ammonia) it behaves as strong base it behaves as strong acid neutralisation reaction take place liq. NH3 (ammonia) behaves as an acid

47. When KNH2 is mixed with liquor ammonia solution of silver nitrate the silver precipitates as nitrate salt imide salt solid metal amide salt

48. The inorganic salts containing highly charged ions like oxides, hydroxides, sulphides are practically soluble in liq. s02 soluble in liq. NH3 insoluble in liq. NH3 and liq. 802 soluble in both liq. s02 and liq. NH3

49. Non-ionising solvents have high dielectric constant and high dipole moment low dipole moment and high dielectric constant low dipole moment and low dielectric constant high polarity SPACE FOR ROUGH WORK p.T.a. RNM 10 A

50. At constant temperature, the volume of a fixed mass of a gas is inversely proportional to its pressure, is Charles' law Einstein's law Boyle's law Pressure-Temperature law

51. The unit of the van der Waal's constant is atm lit mol-I atm lit2 mol-2

(3) atm lit-1 mol-1

(4) atm lit-1 mol-2

52. The inter-relationship between the average velocity and RMS velocity can be given as v mew x 0·9213 v =mew x 9·213 mew v x 0·923 mew v x 9·213

53. The gases which have their critical temperature above or just below the ordinary atmospheric temperature are liquified by Linde's method Faraday's method Claude's method Maxwell's method

54. Inter-molecular forces in liquids are essentially neutral electrical strong magnetic

55. The liquid crystals in which molecules are arranged in parallel to each other but they are free to slide or roll individually, are known as smectic liquid crystals cholesteric liquid crystals nematic liquid crystals crystalline liquid crystals

56. In simple cubic lattice of NaCI, each particle is surrounded by eight other particles four other particles six other particles ten other particles

57. The movement of sol particles under an applied electric field is called Electrofiltration

(2) Electro-osmosis Electrokinetic phenomenon Electrophoresis

58. An emulsion is a colloidal solution of a solid dispersed in liquid liquid dispersed in another liquid liquid dispersed in solid None of the above

59. The function of alum used for purification of water is to coagulate the colloidal particles coagulate the sol particles emulsify the sol particles emulsify the colloidal particles

60. The solution which does not show Tyndall effect is suspension

(2) colloidal solution true solution

(4) emulsion

61. The unit of specific reaction rate constant for zero order.reaction is sec-1 mol mol sec-1

(4) mol dm3 sec­

62. A graph of log delta/(delta-x) t for a reaction is straight line graph with slope =-0·00486.

The value of K (specific rate constant) is -0·00486 min-l

(2) -0·001119 min-l 0·001119 min-1

(4) 0·01119 min-l

63. The half-time of a first-order reaction is 90 days. Starting with a unit concentration of a reactant, after 360 days, the amount of reactant remaining is 11 11 1/16

(2) 1/4

(4) 1/2
64. In which of the following processes does the entropy decrease? Dissolution of N aCl in water Evaporation of water Conversion of CO2 into dry ice Spilling of food-grains on the ground

65. The Gibbs -Helmholtz equation is <img src='./qimages/3399-65.jpg'> 66. The gas which does not show Joule -Thomson effect is CO2 N2 N2

(4) NH3

67. The number of degrees of freedom for the following equilibrium reaction are CaCO(s) CaO CO2 s zero one two three

68. In the phase diagram for water system,the number of curves representing monovariant system are one two three four

69. In the phase diagram of the CO2 system, the fusion curve slopes away slightly from pressure axis. This is due to the fact that the molar volume of liquid CO2 is larger than molar volume of solid CO2 the molar volume of liquid CO2 is less than molar volume of solid CO2 the pressure is high this is due to the effect of sublimation curve SPACE FOR ROUGH WORK A 13 RNM

70. The relation between KP and KC for the reaction

N2 3 H2 2 NH3 is KP=KC

(3) KP=KC(RT)2

(4) KP=KC(RT)2

(2) KP=1/KC

71. At constant pressure, upon addition of He at the equilibrium point in the reaction

PCls PCl3 Cl2

the degree of dissociation of PCls will decrease PCls will increase PCl3 will increase Cl2 will increase

72. Which of the following expressions is valid for a reversible process in a state of equilibrium? <img src='./qimages/3399-72.jpg'>

73. The disturbance in the equilibrium of NO and N02 results into acid rain formation of smoke green house effect photochemical smog

74. The type of cancer that is not caused due to expoure to ultraviolet radiations is Carcinoma Squamous Leukemia Melanoma

75. The gas that does not cause green house effect is CO2 CFC N20 No2

76. The relative stabilities of the carbocations c and d are in the order: <img src='./qimages/3399-76.jpg'> c a b d c a a c b d a c

77. The hybridisation of N atom in NHa is spa. The bond angle H is 109.50 107.30 1200 1800

78. The boiling point of which of the following compounds is unusually higher as compared to the other three Ethanol Propane Dimethyl ether Ethyl Fluoride

79. The reaction of cis-2-butene with K-tert butoxide will yield the following cycloadduct. <img src='./qimages/3399-79.jpg'> 80. Which of the statements given below about the reactive intermediate methylene are correct?

a. Methylene is formed by photolysis of diazomethane.
b. Methylene can exist in two forms, singlet and triplet.
c. Singlet methylene is more stable than triplet methylene.
d. When methylene is generated in presence of alkene, cyclopropanes are formed. band d band c c and d c and d H

81. The compounds <img src='./qimages/3399-81.jpg'> H are a pair of CHa CHa enantiomers diastereomers conformational isomers constitutional isomers

82. Which of the following isomers may be labelled as an E isomer <img src='./qimages/3399-82.jpg'>

83. The product of the following reaction is <img src='./qimages/3399-83.jpg'>

84. The absolute configuration of the asymmetric centres in the given molecule is <img src='./qimages/3399-84.jpg'> 2R,3R

(2) 2R,38 28, 3R 28, 38

85. The conformation of cyclohexane in Newman style projection is that of <img src='./qimages/3399-85.jpg'> Boat form Chair form Twist Boat form Half Chair form

86. Match the following:

Organic compounds lamda max values of absorption

a. Benzene i. 270
b. Nitrobenzene ii. 261
c. p-dinitrobenzene iii. 254 a-I b-ii c-iii a-ii b-iii Col a-Ill b-ii Col a-iii b-i c-ii

87. The IR spectrum of an organic compound shows absorption bands at 3050 l 2740 1700 1600 cm·1 and 1460 cm·. The compound would most likely be Phenol Benzaldehyde Benzophenone Acetophenone

88. A compound with molecular formula C9HlOO gives a strong absorption band at 1680 cm-I and signals in the NMR spectrum as follows:

a triplet at 1·2 DELTA a quartet at 3·0 delta and a multiplet at 7·4 -8·0 delta) The given compound is <img src='./qimages/3399-88.jpg'> 89. On what basis will you distinguish between cis and trans alkenes using IH-NMR spectroscopy? Coupling constants Splitting pattern Chemical shifts All of the above

90. From the pure rotation spectrum of HF molecule, information can be obtained about force constant the internuclear distance hydrogen bonding bond strength

91. 2-pheny-l-propanol can be obtained from 2-phenyl propene by reaction with ozone followed by hydrolysis hydroboration followed by oxidation with HzOz oxymercuration followed by reduction reaction with KMn04 under alkaline conditions

92. Which of the following alkyl halides will give methylene cyclohexane in good yield by an E2-elimination <img src='./qimages/3399-92.jpg'>

93. The products obtained on treatment of 2-methyl-2-butene with ozone followed by aqueous H2O2 would be Acetone Acetone Acetone Acetaldehyde Acetone Acetic acid Acetone Formaldehyde

94. The cycloadduct <img src='./qimages/3399-94.jpg'> 95. The product obtained when cyclohexene is brominated using N-bromosuccinimide is/are cis-1,2-dibromo cyclohexane trans-1,2-dibromo cyclohexane cis-1,2-dibromo cyclohexane trans-1,2-dibromo cyclohexane 3-bromo cyclohexene

96. According to Huckel's rule, the ring is said to be aromatic if it contains

12 etc. electrons 10, 14 etc. electrons 7 etc. electrons 12 etc. electrons

97. In electrophilic substitution, reaction of aromatic rings, if an electrophile is a positive ion, it gives carbocation carboanion it-complexes None of the above

98. When aromatic rings are reduced by Na in liq. NH3 in presence of alcohol, 1,4 addition of hydrogen takes place and non-conjugated cyclohexadienes are produced. This reaction is called Michael reaction Knoevenagel reaction Birch reduction Friedel -Crafts reaction

99. When glycols are treated with acids, they can be rearranged to give acetic acid alcohols aldehydes or ketones tetra-substituted glycols

100. To obtain a good yield of aldehyde or ketone under mild conditions from 1,2 glycol, its oxidative cleavage is carried out with k2Cr207 KMn04 ZnO HI04

101. The reaction in which phenolic esters can be rearranged by heating with Friedel-Crafts catalyst to 0-and p-acylphenols is known as Claisen rearrangement Fries rearrangement Cleavage Gabriel rearrangement

102. In the self redox reaction of a compound having no a-hydrogen atom, in which one molecule of an aldehyde is oxidised to carboxylic acid and other is reduced to alcohol is known as Cannizzaro's reaction Baeyer -Villiger reaction Wittig and Mannich reaction Houben -Hoesch reaction

103. The reduction of aldehydes to primary alcohol and ketones to secondary alcohol can be carried out in presence of reducing agent such as alkaline KMn04 PCl4 LiAlH4 trimethyl aluminium

104. <img src='./qimages/3399-104.jpg'> The°above reaction is known as Wolff-Kishner reduction reaction Skraup synthesis Gatterman synthesis Clemmensen reduction reaction

105. alpha,beeta -unsaturated aldehydes can be oxidized to carboxylic acid without disturbing the double bond by using oxidizing agent such as MgO ZnO sodium chlorite alkaline KMn04

106. The atom which gets halogenated in the process of halogenation of carboxylic acid with PCl3 is para-hydrogen meta-hydrogen ortho-hydrogen

(4) alpha -hydrogen

107. Which of the following carboxylic acids can be esterified most readily? <img src='./qimages/3399-107.jpg'> 108. When a mixture of absolute alcohol and glacial acetic acid is heated in presence of cone, H2S04, the product that distills out is acetoacetic ester ethyl acetate ethyl acetoacetate methyl acetoacetate

109. Decarboxylation of carboxylate ion of carboxylic acid follows the mechanism <img src='./qimages/3399-109.jpg'> 110. In Gabriel synthesis, for the conversion of halide to primary amines, the halide is first treated with guanidine (PhS)2NLi potassium phthalimide alkyl bromides

111. When primary aromatic amines are treated with nitrous acid, it forms Diazonium salt

(2) Heterocyclic amines Nitro amines Amide

112. Phase transfer catalysts are salts in which one of the ions (usually the cation) has polar substituent groups methyl group non-polar substituent groups sulphonated benzene ring

113. When aryhydrazones are treated with a catalyst such as ZnCl2 an indole is formed with the elimination of <img src='./qimages/3399-113.jpg'> 114. Quinolines are commonly synthesized by a method known as the Skraup synthesis, in which aniline is treated with glycerol under high pressure alkaline conditions normal temperature acidic conditions .

115. The reaction in which amide can be cyclized with phosphorus oxychloride is known as Baeyer -Villiger reaction Bischler -Napieralski synthesis Mannich reaction None of the above

116. Ethyl acetate undergoes a condensation reaction when treated with sodium ethoxide to give <img src='./qimages/3399-116.jpg'> 117. Product obtained in the following reaction is <img src='./qimages/3399-117.jpg'> 118. Complete the following reaction <img src='./qimages/3399-18.jpg'> CH3CH2CH2CHO CH3CH2CH2CH20H CH3CH2CH2COOH CH3CH2CH2CN

119. When glucose is first treated with excess CH3I and then subjected to acid hydrolysis the sole -OH group present on the hydrolysed product is present on which C atom? I C-2 C-3 C-4 C-5

120. Starch is a polymer of alpha glucose beeta glucose II alpha-D glucose beta-D glucose alpha fructose

121. Match the following: <img src='./qimages/3399-121.jpg'> 122. The conversion of a and beta as inversion mutarotation racemisation

(2) anomerisation


123. The tertiary structure of protein describes the sequence of amino acids in the chain location of all disulphide bridges regular conformations assumed by segments of protein backbone the three-dimensional structure of entire polypeptide

124. When two amino acids are heated to form dipeptide, four dipeptides are obtained. To avoid this, in classical peptide synthesis, amino group of one amino acid is protected using while the acid group of the same amino acid is activated using reagent B. The reagents A and Bare

A-tBOC,B-DCC A-DCC,B-SOCl2 A-DCC,B-tBOC A-tBOC,B-SOCl2

125. A four amino acids containing polypeptide Val-Phe-Gly-Ala is labelled with I-fluoro-2,4-dinitro benzene by carrying out a nucleophilic aromatic substitution reaction and subjected to hydrolysis. The products obtained are

Dinitrophenyl Val Phe Gly Ala

The C-terminal and N-terminal amino acids are Ala; Val Val; Ala Phe; Val Gly; Ala

126. Nucleic acids are composed of long strands of nucleotide subunits linked to each other by phosphodiester bonds linking group of one nucleotide to group of another nucleotide group of one nucleotide to group of another nucleotide group of one nucleotide to group of another nucleotide group of one nucleotide to group of another nucleotide

127. Which of the following desirable properties may not be achieved by the use of Ziegler-Natta catalyst? Resistance to cracking Control over configuration of double bonds in the polymer Cross-linking of polymers Conducting polymer

128. The vinyl monomers which bear electron withdrawing groups are most susceptible to polymerisation.

Cationic Anionic Free radical Condensation

129. are macromolecules usually fonned by the reaction of a diol with o II isocyanate and contains the functional group <img src='./qimages/3399-129.jpg'> Polyamides Polyurethanes Polyanilides Polyisocyanates

132. Consider the following statements about explanation of colour of organic compounds on the basis of Valence Bond theory. Which of these is not true? Resonance among charged structures reduces energies of both ground and excited states. Charged structures contribute less to excited state than to the ground state. The larger the number of electrons involved in resonance, the smaller is the energy difference between ground state and excited state. The more extended the conjugation in a molecule and greater the contribution of charged structure, longer is the wavelength of the photon required to excite the

130. Match the following

Synthetic Dye Preparation from
a. Malachite Green I. Phthalic anhydride resorcinol (Friedel-Crafts)
b. Crystal Violet ii. Benzaldehyde dimethyl aniline (condensation)
c. Fluorescein iii. Formaldehyde dimethyl aniline (condensation) a-II b-i c-iii a-I b-iii C-ll a-iii b-ii c-i a-ii b-iii C-I

131. The principal synthesis of involves oxidation of anthraquinone-2-sulphonic acid with sodium nitrate in concentrated NaOH solution. Indigo Alizarin Methyl orange Phenolphthalein molecules.

133. In general, all reactions are atom economical. Substitution Elimination Addition Hydrolysis

134. Which of the following cannot be termed as a green solvent? Supercritical CO2 Water Carbon tetrachloride Ionic solvent

135. Which of the following is a green reagent to carry out selective methylation of active methylene compound? Dimethyl sulphate Dimethyl carbonate Diazomethane Methyl chloride

136. 'An electrolyte in solution need not necessarily be completely dissociated into ions; instead it may be only partially dissociated to"yield ions in equilibrium with unionized molecules of the substance', is put forth by Kohlrausch's theory Debye -Huckel theory Arrhenius theory Nernst theory

137. The conductance behaviour of strong electrolytes has been given by the Debye-Huckel-Onsager equation and it is given as <img src='./qimages/3399-137.jpg'>

138. Ostwald's dilution law can be used to determine conductance of weak acid dissociation constant of strong acid molar conductivity at infinite dilution for a weak acid molar conductivity at infinite dilution for a weak base

139. The unique ions which show high velocity under a potential drop of one volt per centimeter are H and OH­

(2) K and cL- K and NO3- NH4 and NO3-

140. The electrode which is constructed by dipping metal electrode into its own ion solution I is known as metal-insolule salt electrode redox-electrode metal-metal ion electrode None of the above

141. When solar cell is exposed to sunlight, the energy from sunlight excites electrons from n-type silicon to the holes of the p-type silicon from p-type silicon to the holes of the n-type silicon and the electrons transfer to p-type silicon through external circuits I and the electrons transfer from n-type silicon to external circuit I

142. At 25°C, the pH of the solution can be calculated by measuring Ecell of the cell so f constructed by using saturated calomel electrode and quinhydrone electrode. The I equation employed for the purpose is <img src='./qimages/3399-142.jpg'> 143. In cathodic protection of metal from corrosion, the current is leaked to the ground from any conductor and the current is known as cathodic current over-voltage sacrificial current stray current

144. The total energy operator is called as Hermitian operator Linear operator Hamiltonian operator

(4) Addition of operator

145. For a sound wave, as per the postulates of quantum mechanics, the wave function is a function of Temperature Magnetic moment Time Energy

146. In Schrodinger's wave equation, the symbol IV represents wavelength of the spherical wave amplitude of the spherical wave frequency of the spherical wave None of the above

147. It is only the absorbed light radiations that are effective in producing a chemical reaction is the Beer's law Einstein's law Grothus -Draper law Bunsen -Roscoe's law

148. Which process stops as soon as the incident radiation is cut off Fluorescence Phosphorescence Chemiluminescence None of the above

149. Photosensitizer is a substance which can take part in the chemical reaction only absorbs the radiant energy only transfers the radiant energy absorbs and transfers radiant energy

150. In a Jablonski diagram depicting various photophysical processes, the non-radiative processes of intersystem crossing, internal conversion and vibrational relaxation are indicated by the Horizontal lines Vertical lines Wavy lines Diagonal lines Diagonal lines