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PAPER-2

Maximum Marks: 80

Question paper format and Marking scheme:

1. In Section I (Total Marks: 24), for each question you will be awarded 3 marks if you darken ONLY the

bubble corresponding to the correct answer and zero marks if no bubble is darkened. In all other cases,

minus one (1) mark will be awarded.

2. In Section II (Total Marks: 16), for each question you will be awarded 4 marks if you darken ALL the

bubble(s) corresponding to the correct answer(s) ONLY and zero marks other wise. There are no negative

marks in this section.

3. In Section III (Total Marks: 24), for each question you will be awarded 4 marks if you darken ONLY the

bubble corresponding to the correct answer and zero marks otherwise There are no negative marks in this

section.

4. In Section IV (Total Marks: 16), for each question you will be awarded 2 marks for each row in which

you have darken ALL the bubble(s) corresponding to the correct answer(s) ONLY and zero marks

otherwise. Thus each question in this section carries a maximum of 8 Marks. There are no negative marks

in this section.

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SECTION I (Total Marks : 24)

(Single Correct Answer Type)

This Section contains 8 multiple choice questions. Each question has four choices (A), (B), (C) and (D) out of

which ONLY ONE is correct.

1. H for the reaction ( ) ( )2

H H| |

H C N g +2H g H C N H|

H

(g) is 150 KJ

Calculate the bond energy of C N bond. [Given bond energies of C H = 416 KJ mol1; H H =

436 KJ mol1; C N = 293 KJ mol1; N H = 369 KJ mol1]

A) 762 KJ mole1 B) 481 KJ mole1

C) 841 KJ mole1 D) 741 KJ mole1

2. Given are two reactions:

3CH OH

1NuCH I Rate constant k

3

2NuCH I Rate constant k

3DMF

The difference in the value of k1 and k2 is highest when Nu is

(A)Cl (B) Br (C) NCS (D) 3CH S

3. ColumnI Column IIA) Borax

A

P) BN

B) B2H6 + H2O Q) B2H6

C) B2H6 + NH3 R) H3BO3

D) BCl3 + LiAlH4 S) NaBO2 + B2O3A) A-R; B-S; C-P; D-Q B) A-Q; B-R; C-P; D-S

C) A-S; B-R; C-P; D-Q D) A-S; B-P; C-R; D-Q

4. Statement-1 : HIO4 decomposes . 1, 2 glycols but not 1,3 or higher glycols

Statement 2 : Only 1, 2 glycol forms cyclic esters which subsequently undergo clevage to form

carbonyl compound.(A) Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1.

(B) Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1

(C) Statement-1 is True, Statement-2 is False

(D) Statement-1 is False, Statement-2 is True

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5. Match the following

ColumnI Column II

(Organic comp.) (Test responded)A)

3CHNH

P) Hinsberg test

B)

2NH

OHCH 2 Q) Victor Meyer testC)

3CHNH

OHCH 2 R) Yellow oily layer with, NaNO2 + HClD)

33 CHNCH

CHOCH 2 S) Silver mirror test

A) A-P,Q; B-P,R; C-P,Q,S; D-Q,SB) A-P,R; B-P,Q; C-P,Q,R; D-S

C) A-P,R,S; B-P,Q; C-P,Q,R,S; D-S

D) A-P,Q,S; B-P,Q; C-Q,R; D-P,Q

6. S1 : The graphite is diamagnetic and diamond is paramagnetic in nature.

S2 : Graphite acts as a metallic conductor along the layers of carbon atoms and as semi-conductor

perpendicular to the layers of the carbon atoms.

S3 : Graphite is less denser than diamond

S4 : C60 is called as Buckminster fullerene(A) F T T T (B) T F T T (C) F F T T (D) F T T T

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7.

Indicate the correct stereochemical relationship amongst the

following monosacharides

I) II) III) IV)

A) I and II are anomers; III and IV are epimers

B) I and III are epimers; II and IV are anomers

C) I and II are epimers; III and IV are anomers

D) I and III are anomers; I and II are epimers

8. Match the following

I Bauxite (a) Lead

II Carnallite (b) Copper

III Malachite (c) Magnesium

IV Galena (d) Halls Process(A) I a, II b, III c, IV d (B) I d, II c, III b, IV a

(C) I b, II a, III d, IV c (D) I d, II b, III c, IV a

SECTION II (Total Marks : 16)

(Multiple Correct Answer(s) Type)

This section contains 4 multiple choice questions. Each question has four choices (A), (B), (C) and (D) out ofwhich ONE OR MORE may be correct.

9. Figure displays the plot of the compressibility factor Z verses p for a few gasesIV

III

I

II

Which of the following statements is/are correct for a vander waals gas ?

A) The plot I is applicable provided the vander waals constant a is negligible.

B) The plot II is applicable provided the vander waals constant b is negligible.

C) The plot III is applicable provided the vander waals constants a and b are negligible.

D) The plot IV is applicable provided the temperature of the gas is much higher than its criticaltemperature.

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10. Which of the following molecule/s gives only acids on hydrolysisA) PCl3 B) SF4 C)NCl3 D) P4O6

11. Given log3 = 0.4771, log2 = 0.3010. To measure the activity of a given radioactive sample, a count

rate meter is used. Two recordings separated in time by 1 minute show a count rate ratio of 2.25.

The decay constant (min1) of the sample is :(A) 0.83 min1 (B) equal to its t1/2 numerically in min.

(C) 1 min1 (D) varying with time

12. Identify the set in which product formed is correctly matched with given reagent. The

reactant is 1-tert-butyl cyclohexene.

SECTION-III (Total Marks : 24)

(Integer Answer Type)

This section contains 6 questions. The answer to each of the questions is a single-digit integer, ranging from 0 to

9. The bubble corresponding to the correct answer is to be darkened in the ORS.

13. pH of 6.66 x 104 M solution of Al(OH)3 is xy .

x + y is...

Given the first dissociation of Al(OH)3 is complete, second dissociation is 50% and third is

insignificant

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14. 0.5g of fuming H2SO4(oleum) is diluted with water. This solution is completely neutralized by 26.7

ml of 0.4 N NaOH. The percentage of free SO3 in the sample is nearly Z X 4. z is

15. For an ionic compound AX3(s) formed between a metal A and a non-metal X (outermost shell

configuration of X = ns2np5). Unit place of enthalpy of formation (magnitude) of AX3(s)

in k cal mol1 using following data.

(Non-metal X is found to exist in nature as a diatomic gas)

Hsublimation

A(s) = 100 Kcal/mol

1

HIE

A(g) = 60 Kcal/mol

2

HIE

A(g) = 150 Kcal/mol

3

HIE

A(g) = 280 Kcal/mol

Hdiss X2(g) = 80 Kcal/mol

He.g X(g) = 110 Kcal/mol

HLattice energy A X3(s) = 470 Kcal/mol

16. Electrolysis of a solution of MnSO4 in aqueous sulphuric acid is a method for the preparation of

MnO2. Passing a current of 27A for 24 hours gives 1 kg of MnO2. The current efficiency is n. Theunit place value of n is

17. Decomposition of A follows first order kinetics by the following equation.

4A(g) B(g) + 2C(g)

If initially, total pressure was 800 mm of Hg and after 10 minutes it is found to be 650 mm of Hg.

What is half-life of A ? (Assume only A is present initially)

18. Among K2CO3, MgCO3, CaCO3, BeCO3, Na2CO3, BaCO3, SrCO3, the no of carbonates,those

more thermally stable than MgCO3 are

SECTION-IV (Total Marks : 16)

(Matrix-Match Type)

This section contains 2 questions. Each question has four statements (A, B, C and D) given in Column I and five

statements (p, q, r, s and t) in Column II. Any given statement in Column I can have correct matching with

ONE or MORE statement(s) given in Column II. For example, if for a given question, statement B matches withthe statements given q and r, then for the particular question, against statement B, darken the bubbles

corresponding to q and r in the ORS.

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19. Match the reactions mentioned in Column-I with the nature of the reaction/characteristic(s) of the

products mentioned in Column-II

Column I Column II

(A) strongly heated3 2H PO

(p) One of the products is a reductant

(B) 2i)H O3 ii)

PCl

(q) One of the products is tribasic

(C)2 2

NO H O+ (r) Dehydration

(D)3 4 10

HNO P O + (s) One of the products has central atom in+5 oxidation state

(t) Disproportionation

20. Match the reactions given in Column-I with the facts given in Column-II.

Column-I Column-II

(A) +PyH CrO Cl3CH CH CH OH

3 2 2 CH Cl2 2

(p) Net result is

reduction

(B) K Cr O2 2 7

H SO ,H O2 4 2

CH CH CH OH3 2 2

(q) A ketone is formed

(C)

CH3

LiAlH4

etherCH CH CH Cl

3 2

(r) Net result is

oxidation

(D) ( )3 3PCl

3ether

CH CH OH3

CH COK +

CH2

CH3

(s) A hydrocarbon isformed

(t) An acid is formed

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