dr a gubendran asst prof s.n college 9442879957...dr a gubendran dr a , madurai 9442879957 assistant...

Dr A Gubendran, Assistant Professor

S.N College, Madurai 9442879957

Dr A Gubendran Asst.Prof S.N College Page 1

KALVIAMUTHU - TRB Polytechnic Lecturer Chemistry 2017 -

(Fully solved)

The cut off marks will be 105 -130:

OC 125 ±3 BC 115 ±3 MBC 110 ±3 SC 105±3

KALVIAMUTHU

http://cbs.wondershare.com/go.php?pid=2996&m=db












































1. Cyclooctatetraene is not aromatic. The most important reason for this is that:

(a) it has 4n electron

(b) it is a planar molecule KALVIAMUTHU.COM

(c) its

structure is not that of regular octagon

(d) its structure cannot be described by more than two cannonical forms

2. For the sulphonation of pyrrole and indole, the following reagent is used

(a) con H2SO4 (b) SO3 dissolved in pyridine at 120 oC

(c) Fuming sulphuric acid at 220 oC (d) Chlorosulphonic acid

3. The basic unit of porphyrin system which occurs in chlorophyll and hemoglobin is:

(a) Pyrrole (b) Furan (c) Thiophene (d) Oxazole

Advanced Organic Chemistry - Organic Synthesis, Heterocycles & Biomolecules Nimai Tewari

4. Succinic acid on heating with P2O5 gives a compound A which on treatment with ammonia followed

by reduction with Zn and CH3COOH or HCl gives the product

(a) Furan (b) Pyridine (c) Pyrrole (d) Thiophene


5. When

(a) 5-substituted alkyl quinoline (b) 7-substituted alkyl quinoline

(c) mixture of 5- and 7-substituted alkyl quinoline (d) None of these


6. Find out the incorrect statement:

(a) Distribution of the solute in partition chromatography D =

(b) Larger the value of D, speeder will be the progress of the solute

(c) Rf =

(d) Rf is inversely related to D and can‟t be greater than 1

7. In atomic absorption spectroscopy, flame used for the detection of Cu, Cd and Zn:

(a) H2-air (b) H2-O2 (c) C2H2-air (d) C2H2-N2O













































8. XeF4 has square planar structure because

(a) Three Raman and three IR bands are coincidental

(b) Each three Raman and IR bands are not coincidental

(c) Six Raman vibrational bands

(d) It has no centre of symmetry

9. In NaCl ionic crystal, bond length is 2.36 Ao and the experimental dipole moment of this molecule is

8.5 D. The percentage of ionic character in NaCl bond in the given molecule is

(a) 25% (b) 75% (c) 27% (d) 73%

µionic = 4.8 × 10–10

× 2.36 × 10–8

esu cm = 11.33 Debye

µobserved = 8.5 D

∴ % ionic character = µobserved x100 / µionic

= 8.5/11.33 × 100 = 75%

10. Which is wrongly matched?

Ion / Compound Lewis acid present in it

(a) F3B O(C2H5)2 BF3

(b) S2O32-

SO32-

(c) BeF42-

BeF2

(d) [Fe(CN)6]4-

Fe2+

11. Betaine, an ylide and a phosphine oxide have tetra coordinated phosphorous. These species could not

be causing the spectra, which leads to the conclusion that:

(a) Optically active phosphonium salt reacts to produce a phosphine oxide with retention of configuration

(b) Oxaphosphetane intermediate is present in the solution

(c) The dipolar complex so formed decomposes to olefin and triphenyl phosphine oxide

(d) Desired alkyl groups can be introduced in the alkyl halide

12. Higher enantioselectivity in the reduction of furan could be achieved by: KALVIAMUTHU













































(a) attaching silyl group to the nucleus

(b) using lithium together with a solvent and a weaker proton source

(c) by adding an electron withdrawing substituent

(d) by the formation of undesired side products

13. In the following reaction, side reaction can be avoided

(a) by the attachment of aluminium isopropoxide in excess of isopropyl alcohol

(b) employing sodium carbonate, quinoline, pyridine and triethylamine bases

(c) by selecting secondary amines

(d) conducting the reaction in neutral solution

14. Which of the following statements are correct?

A. Reactivity of enamine depends on the amine moiety and on the degree of substations at the and

positions β

B. Alkyl substituents at C- of an enamine enhances enamine reactivity

C. Alkyl substituents at C-β of an enamine enhances enamine reactivity

D. Cyclic and acyclic ketone enamines are more readily C-alkylated than aldehyde enamines

(a) A and B (b) B and D (c) A, B and C (d) A, B, C and D

15. In Dieckmann condensation reaction in which larger rings are to be closed are generally assisted by

high dilution, since:

(a) migration of the group occurs with retention of its configuration

(b) abnormal products will not be formed

(c) one end of the molecule has a better chance of finding the other end than that of finding another

molecule

(d) None













































Jerry March

16. Pick out the correct statement from the following:

(a) Sulphamic acid behaves as a dibasic acid in aqueous solution

(b) HNO3behaves as a acid in H2SO4

(c) Urea behaves as a strong base in conc.H2SO4

(d) H2SO4 acts as acid in liquid NH3

17. Example for secular equilibrium:

(a) Sr90

(τ =28.1 y); Y90

(τ =64.1 h) (b) Th234

(τ =24.1 d); Pa234

(τ = 1.18 min)

(c) Ba140

(τ = 12.8 d); La140

(τ =40 h) (d) Rn232

(τ = 3.82 d); Po218

(τ = 3.05 min)

Essentials of Nuclear Chemistry By Hari Jeevan Arnikar 136

18. The anode and cathode used in a liquid GM counter respectively are

(a) Platinum wire stretched inside the tube filled with argon; outer silvered wall

(b) Tungsten wire stretched inside the tube filled with argon + halogen; inner silvered wall

(c) Rhodium wire stretched inside the tube filled with Kr + halogen; inner platinized wall

(d) Chromium wire stretched inside the tube filled with Kr + halogen; outer platinized wall

19. Frick solution is obtained by dissolving

(a) 0.4 g of FeSO4(NH4)2SO4.6H2O + 0.06 g NaCl in 22 ml 95-98% H2SO4 made up to 1 litre with

distilled water + air

(b) 0.4 g of FAS + 1% NaCl in 44 ml 98% H2SO4 made up to 1 litre with deionized water + air being

present













































(c) 0.8 g of FeSO4(NH4)2SO4.12H2O + 0.12 g NaCl in 66 ml 98% H2SO4 made up to 500mL with

distilled water + air

(d) 1.2 g of FAS + 1% KCl in 44 ml 98% H2SO4 made up to 750 mL with deionized water + air

20. Which one is wrongly matched?

(a) total amount of red blood cells (i) chromium - 51

(b) uptake of phosphorous by plants (ii) P-32

(c) volume of water in the body (iii) 1H2 or 1H

3

(d) mixture of amino acids (iv) Nitrogen -15

Chromium-51 in the molecule sodium chromate, attaches itself to red blood cells, it is useful in several

kind of tests. When chromium trichloride CrCl3 is used as the tagging agent, the chromium is bound

almost exclusively to plasma proteins, rather than the red cells.Chrmium-51 may thus be used for

estimating the volume of plasma circulating in the heart and blood vessels. This 51Cr procedure was used during the Korean War to determine how much blood had been lost by wounded patients, and helped to save many many lives. Indu Thakur Radiation Biology, India Submission: August 01, 2017; Published: August 21, 2017

21. Pick out the correct increasing order of Ka values of acids:

(a) HCN < HF < H2S < HCOOH (b) H2S < HCN < H3PO4 < HF

(c) H2CO3 < H3BO3 < H2S < HCN (d) H3BO3 < H2CO3 < CH3COOH < HCOOH

22. Read the statements:

(A) A pearls distortion ensures that no one dimensional solid is a metallic conductor below a critical

temperature

(B) A solid insulator is a semiconductor with a large band gap

(a) Statement (A) and (B) are wrong (b) Statement (A) and (B) are correct

(c) Statement (A) is correct, (B) is wrong (d) Statement (B) is correct, (A) is wrong

Shriver and Atkins' Inorganic Chemistry By Peter Atkins

23. Which is correctly matched?

Ionic crystal Lattice energy (kJmol-1

)

(a) AgCl 895

(b) CsI 601

(c) LiI 140

(d) NaCl 1033

The question setter must be a sadist or heartless person. This kind of question will demoralize students‟

sprit to prepare competitive exam. There are so many ways to ask question in lattice energy. How can one

memorize lattice energy values? But the trend i.e., increasing or decreasing order can be predicted if

lattice energy values of ionic crystals are given.













































24. Pick out the wrong statement from the following:

(a) K2CO3 is soluble in liquid SO2

(b) SO2 acts both as a Lewis acid and as a Lewis base

(c) A Liquid NH3 solution of phenolphthalein is colorless

(d) Liquid SO2 exhibits association whereas liquid NH3 does not

S.Chands Success Guide (Q&A) Inorganic Chemistry By Gaurav Madan page 728

25. Pick out the compound which behaves as a weak acid in liq.NH3

(a) HClO4 (b) NH2CONH2 (c) CH3COOH (d) Mg(NH2)2

CONCISE INORGANIC CHEMISTRY, 5TH ED By J. D. Lee p 264













































Inorganic chemistry James Huheey

26. trans-2-bromostilbene is obtained by the elimination of HBr from:

(a) (+) 1,2-bromo-1,2-diphenyl ethane (b) (-) 1,2-bromo-1,2-diphenyl ethane

(c) meso-1,2-bromo-1,2-diphenyl ethane (d) both (a) and (b)

27. The correct nomenclature of the following compound is

(a) (2Z, 4E)-2,4-Hexadienoic acid (b) (2E, 4Z)-2,4-Hexadienoic acid

(c) (2E, 4E)-2,4-Hexadienoic acid (d) (1E, 3Z)-2,4-Hexadienoic acid

28. The compound which gives racemic mixture on bromination is:

(a) trans-2-butene (b) trans-2-pentene (c) cis-2-butene (d) 1-butene

29. Alkene can be converted into trans-1,2-diol using

(a) KMnO4 (b) HIO4 (c) I2, CH3COOAg, AcOH (d) H2SO4

30. Chiral compound among the following is:

(a) meso tartaric acid (b) cis-2,3-dimethyloxirane (c) 2-heptanol (d) Acetaldehyde

31. The product of the following reaction is: PhCOCH3 + PhCO3H → product

(a) PhCOOCH3 (b) PhCOOPh (c) CH3OH (d) CH3COOPh

32. Addition of singlet methylene to cis-2-butene gives:

(a) cis-1,2-dimethylcyclopropane (b) trans-1,2-dimethylcyclopropane

(c) mixture of (a) and (b) (d) trans-2-butene

33. The correct order of nucleophilicity is

(a) F- > Cl

- > Br

- > I

- (b) I

- > Br

- > Cl

- > F

- (c) Cl

- > F

- > Br

- > I

- (d) I

- > Br

- > F

- > Cl

-

Nature of solvent not mentioned













































34. Acetolysis of 7-norborneyl tosylate is 1011

times faster than 7-norbornyl tosylate and it is due to the:

(a) presence of bicyclic ring (b) SN2 attack

(c) presence of anchimeric assistance (d) front side attack

35. The sigmatropic shift involved in the following reaction is

(a) [1,4] (b) [1,2] (c) [5,5] (d) [1,5]

36. Match the following:

Compound b,pt / stability Uses

(I) HNO3 (a) 55 C (i) Fertilizer, Fireworks, TNT

(II) HNO2 (b) 86 C (ii) azo dyes

(III) NOCl (c) unstable (iii) Tildan reagent

(d) 40 C

Codes

(a) (I) (b) (i), (II) (c) (ii) (III) (a) (iii)

(b) (I) (d) (i), (II) (b) (iii) (III) (a) (ii)

(c) (I) (b) (ii), (II) (d) (iii) (III) (c) (i)

(d) (I) (d) (ii), (II) (a) (iii) (III) (b) (i)

37. Which one is not true?

(a) Borazine is known as „Inorganic Benzene‟

(b) Borazine undergoes addition reactions whereas benzene does not undergo

(c) cloud in borazine is lumpy, N retains basicity and B retains acidity

(d) With Br2, borazine undergoes electrophilic addition













































38. Which is not possible?

(a)[C2B9H12] + NaH

→ [C2B9H11]

2 + H2 + Na

+

(b) 2[C2B9H11]2

+ FeCl2 → [(C2B9H11)2Fe]

2 + 2Cl

(c) [C2B9H11]2

+ [C5H5] + FeCl2

→ [C2B9H11FeC5H5]

+ 2Cl

(d) [C2B9H11]2

+ BrMn(CO)5 → [C2B9H11Mn(CO)5]

+ Br

Inorganic chemistry James Huheey

39. Match the following:

Molecule Physical state (b.pt/m.ptC)

(A) ClF3 (i) bright yellow solid (below 68C is a dimer)

(B) BrF3 (ii) colourless gas condenses to pale green liquid (12C)

(C) ICl3 (iii) red liquid (90C)

(iv) straw colored liquid(125.8C)

Codes:

(A) (B) (C)

(a) (ii) (iv) (i)

(b) (ii) (iii) (i)

(c) (iv) (i) (ii)

(d) (ii) (iii) (iv)

40. Jahn-Teller distortions are not expected in:

(a) High spin d4 system (b) Low spin d

4 system (c) d

9 system (d) d

3 system













































41. The addition of LiClO4 in the acetolysis of certain tosylates produced:

(a) Initial steep rate acceleration which the decreased to normal linear acceleration

(b) Initial steep rate decrease which the decreased

(c) Steady uniform linear acceleration

(d) does not influence rate

Ref: Jerry march

42. The mechanism involved in the Sommelet-Hauser rearrangement is an example of

(a) [5,5] sigmatropic rearrangement (b) [2,3] sigmatropic rearrangement

(c) [3,3] sigmatropic rearrangement (d) [1,3] sigmatropic rearrangement

43. Ordinary aldehydes and ketones can add to olefins, under the influence of UV light to give oxetanes.

This reaction is called:

(a) Barton reaction (b) Dakin reaction (c) Paterno-Buchi reaction (d) Wittig reaction

44. cis-3,4-dimethylcyclobutene on heating gives

(a) trans, trans-2,4-hexadiene (b) cis, cis-2,4-hexadiene

(c) cis, trans-2,4-hexadiene (d) both (a) and (b)













































45. The addition of benzenediazonium chloride to vinylcyanide in the presence of cupric salt and acetone

is:

(a) Schiemann reaction (b) Bart reaction (c) Gattermann reaction (d) Meerwein reaction

46. [Mo(CN)8]3-

when enriched with 13

C gives rise to _______ ESR lines.

(a) 17 (b) 9 (c) 153 (d) None of these

Reference: Analytical Chemistry, Second Edition by Dash, Dhruba Charan

47. The NMR that gives information about the back bone to molecules rather than about the

periphery in:

(a) 13

C-NMR (b) 19

F- NMR (c) 1H- NMR (d)

31P- NMR

Reference: Principles of Instrumental Analysis By Douglas A. Skoog, F. James Holler, Stanley R. Crouch

48. When an electric current is passed through a cell containing the electrode +ve ions move towards the

cathode and –ve ions move towards anode. If the cathode is pulled out of the solution:

(a) +ve and –ve ions both will move towards the anode

(b) +ve ions will start moving towards the anode and –ve ions will stop moving

(c) –ve ions will continue moving towards the anode and +ve ions will stop moving













































(d) +ve and –ve ions both will start moving randomly

Answer

Objective Question Bank in Chemistry By B.K. Sharma

49. How many moles of water are available to solvate ions in 1 litre (1dm3) of pure water?

(a) 55.5 moles (b) 50.0 moles (c) 5.55 moles (d) 50.5 moles

50. When two dissimilar metals are to be contact for corrosion control the anode material should have ----

------ area and cathode material should have ------------ area.

(a) both are smaller (b) larger and smaller (c) tiny and larger (d) both are larger

51. Energy of H2 molecule is calculated by

(a) E =

(b) E =

τ

τ (c) E = -

-

-

(d) None

52. The rate constant for the reaction:

2N2O5 → 4NO2 + O2 is, 3 x 10-5

sec-1

. If the rate is 2.4 x 10-5

mol-1

s-1

then the concentration of N2O5 in

mol l-1

is:

(a) 1.4 (b) 0.8 (c) 1.2 (d) 0.4

Rate = k [N2O5]2

2.4 x 10-5

= 3 x 10-5

[N2O5]2

[N2O5]2 = 2.4 x 10

-5 / 3 x 10

-5 = 0.8













































53. An endothermic reaction, A → B has an activation energy of 15 kcal/mole energy of reaction is 5

kcal/mole. The activation energy for the reaction B → A is:

(a) 15 kcal/mole (b) 20 kcal/mole (c) 40 kcal/mole (d) 10 kcal/mole

54. Which of the following is an example of acid-base catalysis?

(a) 2 H2 + O2 2H2O (b) 2 SO2 + O2 2SO3

(c) CH3COOC2H5 + H2O

→ CH3COOH + C2H5OH (d) 2NH4NO2 → N2O + H2O

55. The rate determining step in the heterogeneous catalysis reaction is:

(a) Diffusion of reactants to surface (b) Adsorption of reactants at the surface

(c) Chemical reactions at the surface (d) Desorption of products at the surface

Physical Chemistry by Puri Sharma Pathania

56. Rotational spectra are studied in:

(a) Visible region (b) UV region (c) Microwave region (d) None of these

57. The moment of Inertia of two isotopic molecules 12

CO and *CO are related to the reduces masses

according to the formula

(a)

=

(b)

= √

(c)

=

(d)

=√













































58. The parallel band for N2O molecule contains no Q branch, this information indicates that the

molecule:

(a) has centre of symmetry (b) is linear (c) has dipole moment (d) none of these answers

59. CH3 radical gives rise to an ESR spectrum corresponds to:

(a) 1:3:3:1 (b) 1:2:1 (c) 1:1 (d) None

60. The OH proton in CH3OH in the presence of acid gives an NMR spectrum which is:

(a) quartet (b) singlet (c) doublet (d) None

In acid medium OH proton is observed as singlet. In pure state (anhydrous state) it is observed as quartet

61. Pick out the incorrect sentence from the following regarding the characteristics of “Adsorption”:

(a) It is a surface phenomenon (b) It is a fast process

(c) It is an exothermic process

(d) here the substance is uniformly distributed throughout the substance

Physical chemistry P L Sony

62. In which of the following statements, the entropy decreases?

(a) rusting of iron (b) vapourisation of camphor

(c) crystallization of sucrose from solution (d) melting of ice













































Crash Course Jee(Main) / Aieee - Chemistry by V&S Editorial Board

Rusting itself involves a decrease in entropy, not an increase.

[Letter to the editor of American Journal of Physics.] [Submitted 12 May 2010. Revised 14 May 2010.

Accepted 17 May 2010.]

63. Among the following equations, which is the correct equation to calculate fugacity at moderately low

temperature?

(a) f = P2V/RT (b) f = PV/RT (c) f

2 = PV/RT (d) P = f

2V/RT

Physical chemistry Puri, Sharma, Pathania

64. The total partition function of a molecule is the

(a) Sum of rotational and vibrational partition functions

(b) Product of the translational, rotational and vibrational partition functions

(c) Product of translational and rotational partition functions

(d) Sum of the translational and vibrational partition functions

65. ∆ in the NMR spectrum for peak is at 60 Hz in an instrument operating at 100 MHz. If the

instrument is operating at 120 MHz the ∆ is:

(a) 90 Hz (b) 30Hz (c) 72Hz (d) 50 Hz


Configuration Ground state

(a) d9

2D5/2













































(b) d10

2S1

(c) d2

4F3/2

(d) d1

3F2

67.

The reagents A, B and C are:

(a) NH3, Br, and Py (b) Br

, NH3 and Py (c) NH3, Py and Br

(d) Py, Br

, and NH3

The tran directing ability order is: Br- > Cl

- > py >NH3

68. Pick out the two actinides that have very long-lived isotopes and occur in significant quantities in

nature is:

(a) Neptunium and Nobelium (b) Thorium and Uranium

(c) Plutonium and Californium (d) Actinium and Protactinium

69. (A) Yb3+

forms the seven co-ordinate complex [Yb(acac)3(OH2)]

(B) La3+

forms the eight coordinate complex [La(acac)3(OH2)2]

(C) Structure of [Yb(acac)3(OH2)] is capped trigonal prism

(D) Structure of [La(acac)3(OH2)2] is square antiprism

The correct statements are

(a) A and B only (b) C and D only (c) All are wrong (d) All are correct

70. The increasing -acceptor strength is:

(a) CS < NO+ < CN

< NN (b) CN

< NN < CNR < CO

(c) CO < CNR < NN < CN

(d) NO+

< CS < CO < CNR

71. A compound with molecular formula C5H8 shows IR bands at 3300 cm-1

and 2110 cm-1.

The

compound is:

(a) CH≡C-CH2-CH2-CH3 (b) CH3-C≡C-CH2-CH3

(c) CH2=CH-CH2-CH=CH2 (d) CH3-CH=CH-CH=CH2













































IR spectroscopy indicates the presence of the C≡C and ≡C – H bonds in terminal alkynes through bands

at 2100 – 2260 cm-1

and 3260 – 3330 cm-1

, respectively.

72. A saturated open chain compound C3H8O shows IR band at 2950 cm-1

but none near 3300 cm-1

and

1720 cm-1

. The compound is:

(a) Aldehyde (b) Ketone (c) Alcohol (d) Ether

Engineering Chemistry by Dr. B.S. Chauhan page 48

73. Which of the following compound will give single peak in NMR due to equivalent protons?

(a) CH3OCH3 (b) CH3CH2OCH3 (c) CH3CH(Cl)CH3 (d) CH2=CH-Cl

74. Predict the product:

(a) (b) (c) (d)

75. 2-Octanone on heating with hydrazine in the presence of a base to give n-octane is an example of :

(a) Ullmann reaction (b) Wolf-Kishner reduction

(c) Knorr synthesis (d) Knoevenagel reaction

76. In Lead storage battery anode and cathode are

(a) Lead, Copper with Cupric Oxide (b) Lead, Lead sulfate

(c) Spongy Lead, Grid of lead packed with Lead dioxide (d) Spongy Lead, Lead Nitrate













































Chemistry by Mcmurry page 709

77. Pick out the correct sentence of photochemical reaction from the following:

(a) The reactions involve the absorption of light and independent of temperature

(b) The reactions can take place in the dark

(c) The free energy change is always +ve

(d) The rate of the reaction is not affected by the intensity of light

Fundamentals of Photochemistry By K. K. Rohatgi-Mukherjee

78. The excited state in the molecule may return to the ground state by exciting a photon is known as

(a) Electronic transformation (b) Phosphorescence

(c) Fluorescence (d) Photosynthesis

This question is not properly worded and hence not clear to understand

79. Among the following reactions, pick out the reaction which with has = 0.25

(a) 2HI → H2 + I2 (b) 3O2

→ 2O3

(c) H2 + Cl2 → 2HCl (d) 2C4H10

→ C28H20

No Answer: (a) = 2 (b) = 3 (c) = 104-10

6 (d) = 0.5

80. In the following mechanism

A + →

A* -----1

A* + A →

A2 -----2

A* →

A + -----3













































the steps 1,2 and 3 are,

(a) dimerization, fluorescence and excitation (b) fluorescence, excitation and dimerization

(c) excitation, dimerization and fluorescence (d) phosphorescence, excitation and dimerization

Physical chemistry Puri, Sharma and Pathania

81. F i = Ei i, which is pseudo Schrodinger equation, in which orbital is an eigen function of F. This

operator is introduced to include

(a) orthogonality of α and β spins (b) Electron exchange

(c) average potential energy (d) None

82. In the lowest energy level of n = 1, the particle is most likely to be in the middle of the box, while in

the next higher state of n = 2, the particle is

(a) is never to be found there (b) in the middle of the box

(c) near the wall (d) None













































Engineering Physics Theory and Experiments by S.K. Srivastava page 251

Concepts of Modern Physics By Arthur Beiser page 200

83. If the average distance of 1s electron from the nucleus is

a0, then write the wave function for 1s

orbital of hydrogen atom

(a) 100 =

(b) 100 =

e

imϕ

(c) 100 =

√ e

-r/a0 (d) 100 =

√ (

)

84.Statement: Teflon is used as insulation for electrical iteams and in the manufacture of gaskets and

valves.

Reason: Teflon has low chemical reactivity, excellent toughness, electrical and heat resistance.

(a) Statement is correct but reason is wrong

(b) Statement is wrong, but reason is correct

(c) Both statement and reason are correct

(d) Both statement and reason are wrong

85. Every dynamical variable, corresponding to a physically observable quantity can be expressed as a

linear operator.If the operators were not linear:

(a) The wave functions obtained from a solution of the schrodinger equation could not be

superimposed.

(b) It is quite reasonable to find the expectation value

(c) Both(A) and (B)

(d) None

86.Find out the incorrect statement:

(a) Equation for Gaussian distribution normal curve

(b) The result of an experiment is rejected if Q(experimental) where Q is rejection quotient

(c) Rejection quotient Q = (Xn-Xn-1)/(Xn-X1)

(d) A practical compromise is to set limits at a confidence level of 90 or 95%

87. Maximum uncertainity in the expression: (16.6 ± 0.1)g - 2(16.7 ± 0.2)g + 3(7.3 ± 0.1)g

(a) 71.9 ± 0.8 g (b) 72 ± 0.1 g (c) 5.0 ± 0.4 g (d) 5.1 ± 0.8 g

88. Co-coordinating ability in decreasing order

(a) esters > alcohols > ketones > ethers (b) alcohols > ketones > ethers > esters

(c) ketones > esters > alcohols > ethers (d) ethers > alcohol > ketones > esters













































89. Increasing order of functional groups in chromatography

(a) halides < sulfides < nitro compounds < amides< acids

(b) acids < amides < nitro compounds < sulfides < halides

(c) acids < nitro compounds < sulfides < amides < halides

(d) halides < amides < sulfides < acids < nitro compounds

90. At a constant rate of flow of mobile phase F, retention volume (VR) is related to retention time (tR) by

the relation:

(a) VR =F/ tR (b) VR =F + tR (c) VR =F tR (d) VR =FtR

Principles of Instrumental Analysis By Douglas A. Skoog, F. James Holler, Stanley R. Crouch p 721

91.













































(a) Indole (b) Quinoline (c) Isoquinoline (d) None of these

92.

X Y Z

(a)

(b)

(c)

(d)














































93. Which of the following sets of reagents can be used for step 1 and step 2

Step 1 Step 2

(A) Br2 heating with Ag2O

(B) Br2/H2O heating with Ag2O

(C) NBS heating with copper powder

(D) Br2 heating in quinoline in the presence of Cu powder

Select the correct answer using the codes given below:

(a) A, B and D (b) B and D (c) C alone (d) D alone


94. sin2x is not an eigenfunction of the operator

but of d

2/dx

2. If so what is it eigenvalue ?

(a) 2 (b) 3 (c) -4 (d) 1

95. For the trial function, =

√ 1 + √

2 where 1 and 2 are orthonormal, find the expression for the

weighted average of the energy in terms of the eigenvalues :













































(a) ̅ =

E1 +

E2 (b) ̅ =

(c) ̅ = a1

2 E1 - a2

2 E2 (d) ̅ = a1

2 E1 + a2

2 E2

96. The percentage of haemoglobin in dry weight of RBC is

(a) about 35% (b) about 95% (c) about 77% (d) about 55%

97. The value of CFSE in terms of 0 of d7 system in tetrahedral complex is:

(a) 1.2 o (b) 0.6 o (c) 0.36 o (d) 0.54 o

t = 1.2 and o = -1.2 x 4/9 = 0.54 o

98. The stable conformation of 1,2,2,6,6- pentamethyl-4-hydroxy-4-phenylpiperidine is :

(a) Chair (b) Boat (c) Twist-boat (d) Half-chair

99. The molecule containing enantiotopic atoms is :

(a) Propane (b) Ethanol (c) malonic acid (d) Vinyl chloride

100. Conversion of one chair form to another requires an activation energy of about :

(a) 1.5 Kcal/mol (b) 5 Kcal/mol (c)10 Kcal/mol (d) 0.9 Kcal/mol

Jerry march

101. Match the following :

Super conductors Tc/K

(A) Nb3Ge (i) 122

(B) Nb3Sn (ii) 95













































(C) LiTi2O4 (iii) 13

(D) YBa2Cu3O7 (iv) 18.0

(v) 23.2

Codes :

(A) (B) (C) (D)

(a) (ii) (i) (v) (iv)

(b) (iii) (ii) (i) (v)

(c) (v) (iv) (iii) (ii)

(d) (i) (iii) (iv) (v)

102. Pick out the wrong statement from the following :

(a) Sb atom is in sp3d

2 hybridised state in SbF6

3- ion

(b) Te atom is in sp3d

2 hybridised state in TeCl

-5 ion

(c) Al atom is in sp3d

2 hybridised state in AlF3

3- ion

(d) I ion is in sp3d hybritised state in IF4

+ ion

SbF6- ion is correct or sp

3d

3 hybridised state in SbF6

3- ion


Reaction Example

(a) Oppenheimer-philips (1) 63Cu(P,P,3n,9α)

24Na

(b) Radioactive capture (2)133Cs(α,4n)

133La

(C) Spallation (3)81

Br(d,p)82

Br

(4)31

P(n,r)P32

Codes :

(a) (b) (c)

(A) (3) (4) (1)

(B) (3) (4) (2)

(C) (4) (3) (1)

(D) (2) (3) (1)

104. On irradiation of a thin gold foil by slow neutrons (nv =1018

nm-2

s-1

) for 24 hour.0.0852% of it is

transmuted into Au-198 of period 2.7 days. The cross for the reason is :

(a) 9.861b (b) 986.1b (c) 9861b (d) 98.61b


Species pH

(A)

MoO4

2- (i) higher acidic pH

(B) [Mo7O24]

6- (ii) pH 1.8

(B) [β MO8O26]4-

(iii) higher pH (basic)

(D) [Mo36O119(H2O)16]8-

(iv) neutral pH

(v) pH 4 to 5

Codes:

(A) (B) (C) (D)

(a) (iii) (iv) (v) (i)

(b) (iv) (iii) (ii) (v)













































(c) (iv) (iii) (i) (v)

(d) (iii) (v) (i) (ii)

106. The reactions which are catalysed by any substance which has a tendency to lose a proton is called --

-------. In iodination of acetone the rate determinimg step is the ------

(a) Auto catalysis and decomposition of acetone

(b) Bio catalysis and formation of iodoethane

(c) Genaral acid catalysis and conversion of keto form into its enol form

(d) General acid-base catalysis and addition of iodine to enol form of acetone

107. ∆H and ∆S for reaction are 30.558 kJ mol-1

and 0.066 kJ mol-1

at 1 atm pressure. The temperature at

which ∆G is equal to zero and the nature of the reaction, below this temperature are

(a) 483 K spontaneous (b) 443 K spontaneous

(c) 443 K nonspontaneous (d) 463 K nonspontaneous

G = H-TS

= 30.558 - (463 x 0.066)

G = 0

Below 463 K G is positive (nonspontaneous) and above this temperature G is negative.

108. Brunauer, Emmett and Teller derived the physical adsorption resulting in the formation of

multilayer, which is given by

(a)

=

+

(b)

=

+

(c)

=

+

(d)

=

+













































109. Assertion (A): The identity element present in all molecules is doing nothing.

Reason (R): Rotation through an angle of

about an axis followed by reflection about a plane

perpendicular to that axis is called improper axis.

Codes:

(a) Both (A) and (R) are true and (R) is the correct explanation of (A)

(b) Both (A) and (R) are true and (R) is not a correct explanation of (A)

(c) (A) is true but (R) is false (d) (A) is false but (R) is true

110. Find the reducible representation of C3V point group

C3V E 2C3 3σV

A1 1 1 1

A2 1 1 -1

E 2 -1 0

RR of C3V = 4 1 0

(a) R = A1 + A2 + E (b) R = A1 + 2E (c) R = A1 + 2A2 (d) R = 2A1 + E

aA1 = 1/6 [ 1.1.4 + 2.1.1 + 0 ] = 6/6 = 1

aA2 = 1/6 [ 1.1.4 + 2.1.1 + 0 ] = 6/6 = 1

aE = 1/6 [ 1.2.4 + 2.(-1).1 + 0 ] = 6/6 = 1

111. Assertion (A): Furan -2-carbaldehyde undergoes cannizaro reaction whereas pyrrole-2-carbaldehyde

does not

Reason (R): Highly electronegative oxygen atom does not contribute its unshared pair of electrons for

resonance

Codes:

(a) Both (A) and (R) are true and (R) is the correct explanation of (A)

(b) Both (A) and (R) are true but (R) is not a correct explanation of (A)

(c) A is true but (R) is false













































(d) A is false but (R) is true


112. Match List I with List II and select the correct answer using the codes given below the list

List -I List II

A. Tetrahydrofuran (i) 0.70 D

B. Furan (ii) 1.81 D

C. Pyrrole (iii) 1.73 D

Codes: A B C

(a) (iii) (i) (ii)

(b) (i) (ii) (iii)

(c) (iii) (ii) (i)

(d) (i) (iii) (ii)

Mistake in the dipole moment of furan, it must be 1.70 D

113. Calculate the wavelength of an electron through a potential gradient of 100 volt













































(a) 0.805 x 10-5

m (b) 9.87 x 10-2

m (c) 1.227 x 10-10

m (d) 8.314 x 10-8

m

114. Calculate the average distance of the electron from the nucleus of H atom in the 2s state

(a)

[ 2

] e

-r/a0

(b)

(r e

-r/a0 )

2 r.r

2 dr

(a) 6 a0 (d)

r

2 e

-r sin

2 + cos

2

Quantum Chemistry by R.K. Prasad page 202

115. For a particle in the state n =1, of a one -dimensional box of length L, find the probability that the

particle is in the region 0 ≤ x ≤

(a)

-

(b)

(c)

√ (d) 2mE

116. Find out the correct statement(s):

(A) Decaborane(14) is considered as B12H12 icosahedra frame work from which B1 and B6 have been

removed

(B) Hexaborane(10) is not a pentagonal prism

(C) Icosahedron of [B12H12]2-

is merely the upper limit of a series of deltahedra [BnHn]2-

(D) If all the vertices of deltahedron are occupied the structure is called nido

Codes:

(a) B and D (b) A and C (c) B and C (d) D only













































117. Pick out the correct decreasing order of stability of complex ion is

(a) [Cu(NH3)4]2+

> [Co(NH3)6]3+

> [Hg(CN)4]2-

> [Fe(SCN)]2+

(b) [Fe(SCN)]2+

> [Hg(CN)4]2-

> [Hg(CN)4]2-

> [Co(NH3)6]3+

(c) [Hg(CN)4]2-

> [Co(NH3)6]3+

> [Fe(SCN)]2+

> [Cu(NH3)4]2+

(d) [Hg(CN)4]2-

> [Co(NH3)6]3+

> [Cu(NH3)4]2+

> [Fe(SCN)]2+

[Fe(SCN)]2+

is incorrect


Cluster valence electron count Structure of metal frame work

(a) 86 Octahedron

(b) 74 Trigonal prism

(c) 90 Trigonal bipyramid

(d) 72 Square pyramid













































119. Pick out the optically inactive compound from the following

(a) [Co(en)3]Cl3 (b) [Cr(ox)3]3-

(c) cis-[RhCl2(en)]+ (d) trans-[RhCl2(en)2]

+

optically inactive because of plane of symmetry

120. Erythro-3-bromo-2-butanol reacts with HBr to give:

(a) (+) isomer (b) (-) isomer (c) Racemic mixture (d) Meso product

121. Predict the product

(a) (b) (c) (d)

Robinson Annulation

122. Predict the product













































(a) (b)

(c) (d)

Wolf-Kishner reduction

123. Find out A and B in the following reactions:

(a) A = LDA B =

(b) A = DCC B =

(c) A = Li/Liq NH3, EtOH B =

(d) A = MeNH2/NH3 B =

124. Complete the equation

(a) A = B = (b) A = B =













































(c) A = B = (d) A = B =

125. Consider the following statements:

(A) Azulene is aromatic

(B) [10] Annulene is not aromatic

(C) [10] Annulene is having 4 n electrons

Of these statements

(a) A, B and C are correct (b) A and B are correct

(c) A and C are correct (d) B and C are correct

126. The addition of pyridine to the mixture of (S)-1-phenylethanol and thionyl chloride results in the

formation of 1-phenylchloride with

(a) Retention of configuration (b) Racemization

(c) No specific stereochemistry (d) Inverted configuration

Organic reaction mechanism Peter Sykes

127. Predict the product:

(a) (b) (c) (d)

128. The main products of photolysis of hexa-2-one are

(a) Propane and acetone (b) Propene and acetone

(c) Ethane and acetone (d) Butene and acetone













































IL Finar volume I

129. The correct order of reactivity for SN1 reaction between ROTs and ethanol at 25 oC is:

(A) R = Et (B) R = Ph3C (C) R =iso-pro (D) R = CH2=CH-CH2 (E) R = PhCH2

(a) A > B > C > D > E (b) B > E > D > C > A

(c) E > C > A > D > B (d) C > A > D > E > B

130. Which of the following statements are correct for the given reaction?

CH3CH2CH2Br →

CH3CHBrCH3

A. It involves the migration of bromine

B. It is an example of Wagner-Meerwein rearrangement

C. Hydride ion migration takes place during the reaction

D. It involves 1,2-shift

Codes:

(a) A, B and D (b) A and D (c) B, C and D (d) B and C













































March's Advanced Organic Chemistry: Reactions, Mechanisms, and Structure By Michael B. Smith,

Jerry March p 1581

131. Efficiency for column separations (N) related to retention volume and peak width measured in terms

of standard deviation () by

(a) N = (

)

2 (b) N = 16 (

)

2

(c) N = 5.54 (

)

1/2 (d) N = Length of the column x plate height

132. Match the following with respect to atomic absorption / emission methods:

Element Flame Spectral line/nm

(I) Ag (A) H2-O2 (i) 194

(II) Al (B) C2H2 - air (ii) 766

(III) K (C) C2H2 - N2O (iii) 328

(IV) Na (D) C2H2 – O2 (iv) 589

Codes:

(a) (I) – (B) – (ii), (II) – (C) – (i), (III) – (A) – (iv), (IV) – (D) – (iii)

(b) (I) - (C) – (iii), (II) - (A) - (iv), (III) – (D) – (i), (IV) – (B) – (ii)

(c) (I) - (B) – (iii), (II) - (C) - (i), (III) – (D) – (ii), (IV) – (A) – (iv)

(d) (I) - (C) – (iii), (II) - (A) - (iv), (III) – (B) – (i), (IV) – (D) – (ii)

133. Match the following with respect to nephelometry

Element Reagent Inference

(I) Ag A. NaH2PO2 (i) Br-, I

-

(II) Cl- B. NaCl (ii) Pb

(III) SO42-

C. AgNO3 (iii) NiI

D. BaCl2

Codes:

(a) I B (iii); II (C) (i) ; (III) D (ii)

(b) I B (ii); II (D) (i) ; (III) C (iii)

(c) I D (ii); II (C) (i) ; (III) B (iii)

(d) I D (i); II (A) (ii) ; (III) C (iii)













































Instrumental Approach to Chemical Analysis By A.K.Srivastava page 370

134. Pick out the correct statement from the following:

(a) H2+ is paramagnetic and is stable

(b) He2+ is diamagnetic and is stable

(c) F2 molecule has bond order equal to one and paramagnetic

(d) F2 is more stable than OF

135. Match the following

Buffer Constituent pH range

(A) Borax + sodium hydroxide (i) 6.8 -9.2

(B) Glycine + Glycine hydrochloride (ii) 3.7 -5.6

(C) Boric acid + Borax (iii) 1.0 -3.7

(D) Disodium citrate + Trisodium citrate (iv) 5.0 - 6.3

(v) 9.2 - 11.0

A B C D

(a) (v) (iii) (i) (iv)

(b) (ii) (i) (v) (iii)

(c) (i) (iv) (iii) (v)

(d) (iv) (ii) (v) (i)













































136. ESR spectrum of 1,4 Benzo semiquinone radical anion gives :

(a) 12 lines (b) Triplet of doublet (c) 6 lines (d) 5 lines

137. The mean activity coefficient of 0.01 molal NaCl is (A = 0.509)

(a) 0.889 (b) 0.910 (c) 8.89 (d) 0.509

log ± = - A z+ z- √

I = 1/2 (mizi2) ; A = 0.509

log ± = - 0.509 x 1 x 1x √

log ± = - 0.0509

± = anti log of - 0.0509

This question cannot be answered because you have to use either calculator or log table to take antilog

value.

138. Among the following, which pairs are correctly matched?

(A) a device that stores chemical energy for later release as electricity : Battery

(B) a cadmium anode and a cathode composed of a paste of NiO(OH) : Leclanche cell

(C) gives excellent performance in heart pacemakers, hearing aids, digital watches : Mercury battery

(D) a storage cell is one which can operate both voltaic and electrical cell : Solar battery

Codes:

(a) A, B and D (b) A, B and C (c) A, and C (d) B and D

139. The association constant KA for the equilibrium between free ions and ion pairs is given by

KA =

the terms Ca, f± and f1P are

(a) Fraction, analytical concentration, activity coefficient for ion pairs and mean activity coefficient

(b) Fraction, analytical concentration, mean activity coefficient and activity coefficient for ion pairs

(c) Fraction mean activity coefficient, frequency of ion pairs and activity coefficient













































(d) Fraction, active mass, ionic strength and frequency of ion pairs

140. The correct nomenclature of the following compound is:

A. B. C. D.

(a) A-Z, B-Z, C-E, D-Z (b) A-Z, B-Z, C-E, D-E

(c) A-Z, B-E, C-Z, D-Z (d) A-Z, B-Z, C-Z, D-E

141. Article 21-A and the RTE Act came into effect:

(a) on 1st April 2010 (b) on 1

st April 2009 (c) on 1

st April 2017 (d) on 1

st April 2005

UPKAR‟S UGC NET/JRF/SET Education (Paper-III) Page 35

142. In a class of 45 students, a boy is ranked 20th

. When two boys joined, his rank was dropped by one.

What is his new rank from the end?

(a) 25th

(b) 26th

(c) 27th

(d) 28

th

25 Practice Sets SSC CGL Tier I Workbook 2nd Revised Edition by Disha Experts













































143. In which of the following temple, the front Mandapam is in the form of a huge chariot drawn by

horse?

(a) Patteswaran temple (b) Darasuram temple

(c) Thanjavur Brihadeeswarar temple (d) Thiruvarur Thyagaraja temple

144. First state to fix minimum education qualification for cooperative body poll:

(a) Rajasthan (b) West Bengal (c) Tamilnadu (d) Karnataka

Current Affairs August 2017 eBook By JagranJosh 296

145. Who wore the novel- „Kavalkottam‟?

(a) Vannadasan (b) S. Venkatesan (c) Joe D Cruz (d) Puviarasan

146. What temperature are Fahrenheit and Celsius equal?

(a) -40° (b) 574.59 (c) 40 (d) -574.59

0C = (F-32) x 5/9

147. Quit India Movement was launched in response to:

(a) Cabinet Mission (b) Cripps proposals

(c) Simon Commission Report (d) Wavell plan

IAS Prelims 2017 A Complete Guide: IAS Prelims 2017 A Complete Guide by Jagran Josh 110

148. Who won the gold both in the 5,000 and 110,000 meters event in 2017 Asian Athletics

Championship?

(a) Lakshmanan (b) Gopi Thonkanal (c) Jinson Johnson (d) Neeraj Chopra













































149. The parliament can make any law for whole or any part of India for implementing international

treaties:

(a) With the consent of all the states (b) With the consent of the majority of states

(c) With the consent of the states concerned (d) Without the consent of any state

UGC NET/JRF/SET History (Paper II & III) Facts At a Glance By Dr. Mani Bhushan Mishra p 463

150. Consider the following rivers:

A. Narmada B. Brahmaputra C. Godavari D. Tapti

Which of the above is/are flowing into the Bay of Bengal?

(a) A, B and C only (b) B and C only (c) A and B only (d) A and C only










































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