AIEEE-2009MODEL PAPER - 2

AIEEE-2009

MODEL PAPER - 2

(CHEMISTRY)

Note: This paper is not only for AIEEE (indeed more advanced) but equally useful for other competitive examinations

like IIT-JEE, EAMCET, KCET, CSIR-NET, JAM, M.Sc CHEMISTRY entrance examinations of various

universities and institutions.

1) The IUPAC name of the product formed during the alkaline hydrolysis of the following

compound is

H3C

Cl

Cl

1) 1-[3-carboxycyclopentyl]-4-methylbenzene

2) 1-[3-(formyl)cyclopentyl]-4-methylbenzene

3) 3-(4-methylphenyl)cyclopentanecarbaldehyde

4) 3-(4-methylphenyl)cyclopentanecarboxylic acid

2) Graphite is considered as the ultimate of fused benzene rings. On the same lines, which of the

following can be considered as the ultimate of fused ‘inorganic benzene’ rings?

1) boran carbide 2) borazole 3) boron nitride 4) carborundum

3) If either o o

D D α-D-Glucose([ ] = +111 ) or β-D-Glucose([ ] = +19.2 ) is dissolved separately in

water and allowed to stand, their specific rotations, D [ ] , gradually change and reach to a

specific constant value +52.5o. Which of the following equilibrium best represents this

mutarotation?

1)

O

OH

H

H

H

HO

OH

H OH

H

OH

O

OH

H H

HO

H

H

OH OH

H

OH

2)

O

OH

H

H

H

HO

OH

H OH

H

OH

O

H

H H

HO

H

H

OH OH

OH

OH

3)

O

H

H H

H

HO

OH

H OH

OH

OH

O

H

OH

H

H OH

OH

H

OH

OH

4)

O

OH

H

H

H

HO

OH

H OH

H

OH

O

H

H H

H

HO

OH

H OH

OH

OH

4) Following sequence of reactions occur during Mac Arthur Forrest process of extraction of

V.ADITYA VARDHAN

HTTP://WWW.ADICHEMADI.COM

2

Prepared by V. Aditya vardhan adichemadi(at)gmail.com WARANGAL

silver from argentite ore.

2 2 2 4

NaCN

O

Zn

Ag S A Na SO

A B Ag

 

  

Consider the following statements about ‘A’ and ‘B’.

a) The geometries of the complexes ‘A’ and ‘B’ are respectively linear and square planar.

b) The central metal ions in ‘A’ and ‘B’ exhibit ‘sp’ and ‘sp3’ hybridisations respectively.

c) The IUPAC name of ‘A’ is Sodium dicyanoargentate(I) and that of ‘B’ is Sodium

tetracyanozincate(II).

d) Both ‘A’ and ‘B’ are paramagnetic and colorless substances.

Choose the INCORRECT statment(s)

1) a & c 2) a, c & d 3) b & c 4) a & d

5) When 2.0 mol O2(g) is heated at a constant pressure of 4.25 atm, its temperature increases

from 260 K to 285 K. Given that the isobaric molar heat capacity of O2 is 29.4 J.K-1 mol-1, the

change in the internal energy during the process will be

1) 1054 J.K-1 mol-1 2) 416 J.K-1 mol-1 3) 1470 J.K-1 mol-1 4) 1887 J.K-1 mol-1

6) In the following reaction sequence,

CH3 1) O3

2) H2O, Zn, 

A

conc. NaOD

products

the product mixture contains,

1) both

CH3

COOD

OH

and

CH3

COOHO

D

2) both

CH3

COOHO

H

and

CH3

COOHO

H

3) both

CH3

COOH

OH

and

CH3

COOHO

H

4) only

CH3

COOH

OH

7) Consider the following reactions and their differential rate expressions.

V.ADITYA VARDHAN

HTTP://WWW.ADICHEMADI.COM

3

Prepared by V. Aditya vardhan adichemadi(at)gmail.com WARANGAL

1

2

X products ; - dx [ ]

dt

Y products ; - dy

dt

k X

k

 

 

These reactions are started with the 2 M solutions of ‘X’ and ‘Y’ each. It is found that their

initial concentrations are halved in 5 minutes. The respective concentrations of ‘X’ and ‘Y’

after 10 minutes will be

1) 0.5 M & 0.5 M 2) 0.5 M & 0.0 M

3) 0.5 M & 0.25 M 4) 0.125 M & 0.5 M

8) The correct increasing order of the acidic strength of the following compounds is

a) 3-Nitrophenol, b) 2-Nitrophenol, c) water, d) Ethyl alcohol, e) 2-Propanol, f) para cresol

1) e <>

3) e <>

9) A beaker contains 100 mL of 0.02 M aqueous solution of methylamine. In first step, 50 mL of

0.02 M HCl solution is added to this and the pH of the resulting solution is found to be 10.6. In

the next step, 50 mL of the 0.01 M H2SO4 solution is added to the beaker. The pH of final

solution will be

1) 4.3 2) 9.7 3) 2.7 4) 11.3

10) As shown below, a graph of log x/m against log P values are plotted for adsorption of hydrogen

gas over 2 gr of finely powdered nickel. ( where x = amount of adsorbate adsorbed, m = weight

of adsorbent and P = equilibrium pressure). What is the amount of hydrogen adsorbed over

nickel at 2 atm pressure?

1) 2 gr 2) 4 gr 3) 0.25 gr 4) 0.27 g

11) Which among a) PHBV, b) Buna-S, c) Dacron, d) Neoprene, e) Nylon-6, are the condensation

copolymers?

1) b,d & e 2) a,c & e 3) a & c 4) b,c & e

12) A 0.2 molar KCl solution is found to be isotonic with 3% glucose solution. The van’t Hoff

factor of KCl solution is (the density of glucose solution is 1 g cm-3)

1) 1.334 2) 0.33 4 3) 1.667 4) 0.667

13) The reaction that occurs at anode of lead storage battery during its charging by external supply

V.ADITYA VARDHAN

HTTP://WWW.ADICHEMADI.COM

4

Prepared by V. Aditya vardhan adichemadi(at)gmail.com WARANGAL

of electric current is

1) - 2-

4 4 PbSO (s) + 2e Pb(s) + SO (aq)

2) 4 2 2 2 4 2PbSO (s) + 2H O(l)Pb(s) + PbO (s) + 2H SO (aq)

3) 2- + -

4 2 2 4 PbSO (s) + 2H O (l )PbO (s) + SO (aq) + 4H (aq) + 2e

4) 2- -

4 4 Pb(s) + SO (aq)  PbSO (s) + 2e

14) The major product formed during the following reaction is

CH3

Br KOH

Alcohol, 

1)

CH3

OH

2)

CH3

3)

CH3

4)

CH3

OH

15) Choose the incorrect order for the given property.

1) NH3 <>

2) H2O > H2S > H2Se > H2Te - Bond angle

3) Se2- <>

4) P <>

16) Choose the incorrect statement about van der Waals’ equation of state,

 

2

2

P an V nb nRT

V

 

    

 

1) The units of ‘a’ and ‘b’ are respectively, atm mol-2 lit2 and lit mol-1.

2) Higher is the value of ‘a’ for a given gas, easier is the liquifaction.

3)

2

2

P an

V

 

  

 

is the experimentally determined pressure exerted by a real gas under given

conditions.

4) V  nb is the actual volume available to ‘n’ moles of the gas.

17) The reaction 2 2 2

( ) 1 ( ) ( )

2

H g  O g H O l is used in fuel cells to produce an electric

current. Given the thermodynamic data:

Molar entropies in J mol-1 K-1 for O2(g) =205; for H2(g)=130.6; for H2O(l) =70

and o

f  H of H2O(l) = –285.9 kJ mol–1.

What is the amount of electrical work the same reaction can perform in the fuel cell when

carried out reversibly at 298 K.

1) -237.2 kJ mol-1 2) +285.9 kJ mol-1 3) +237.2 kJ mol-1 1) +2.859 kJ mol-1

V.ADITYA VARDHAN

HTTP://WWW.ADICHEMADI.COM

5

Prepared by V. Aditya vardhan adichemadi(at)gmail.com WARANGAL

18) The number of S=S bonds in ‘X’ formed in the following reaction is

2Na2S2O3  I2 X  2NaI

1) 2 2) 4 3) 0 4) 3

19) The orbital which belongs to principal quantum level, n = 5 is

20) Aniline is heated with fuming sulfuric acid at 453-473 K and the final compound obtained is

subjected to Lassaigne’s test. The coloration observed when the sodium extract obtained is

tested with ferric chloride is

1) Prussian blue 2) Blood red 3) Purple 4) Yellow

21) Which of the compounds formed in the following reaction sequence gives positive iodoform

test?

3 4 3

3 3

1) 1)

2) 2)

CH MgBr KMnO CH MgBr

H O H O Ethanal A B C     

1) A and B 2) Only A 3) B and C 4) Only B

22) The paramagnetic species with bond order 2.5 and containing one odd electron in the anti

bonding orbital is

1) CN 2) NO 3) CO+ 4) C2

-

23) The radii of Ca2+

and F- ions respectively are 100 pm and 131 pm. The edge length of the

unit cell in CaF2 is

1) 231 pm 2) 533.5 pm 3) 462 pm 4) 362.5 pm

24) 20 moles of HI containing 25% of I2 as impurity by moles is passed over hot gold catalyst. At

V.ADITYA VARDHAN

HTTP://WWW.ADICHEMADI.COM

6

Prepared by V. Aditya vardhan adichemadi(at)gmail.com WARANGAL

equilibrium, 40% of HI is found to be dissociated. The Kp value for the following reaction is

2 2 2HIH  I

1) 0.815 2) 0.445 3) 2.4 4) 0.732

25) The major mono substituted product expected in the nitration of following compound is

Cl

H3C CH3

CH3

1)

Cl

H3C CH3

NO 2

CH3

2)

Cl

H3C CH3

O2N

CH3

3)

Cl

H3C CH3

NO 2

CH3

4)

Cl

H3C CH3

O2N

CH3

26) A metal ‘X’ is dissolved in conc.HCl and liberated hydrogen gas. The solution when diluted

with excess of water, gives a white precipitate (Y). This precipitate (Y) dissolves in excess of

alkali by giving (Z). The metal ‘X’ can also be dissoved in conc.NaOH by giving (Z) and

liberating hydrogen gas. The metal cannot show oxidation number greater than +2. The metal

may be

1) Al 2) Sn 3) Zn 4) All of the above.

27) Assertion(A): Europium can form stable Eu2+ ion besides Eu3+ ion.

Reason(R): Oxidation states of lanthanoids with empty f-orbitals are also quite stable.

1) Both ‘A’ & ‘R’ are correct ; and ‘R’ is the correct explanation of ‘A’

2) Both ‘A’ & ‘R’ are correct ; but ‘R’ is not the correct explanation of ‘A’.

3) ‘A’ is correct but ‘R’ is incorrect

4) ‘A’ is incorrect but ‘R’ is correct.

28) Two complexes ‘A’ and ‘B’ have the same formula CoCl3.3NH3. Aqueous solutions of both

of them do not give any precipitate with AgNO3 solution. They have different melting points.

Then ‘A’ and ‘B’ are

1) cis and trans isomers 2) Enantiomers

3) Diastereomers 4) meridional and facial isomers

29) 1 L of a gaseous hydrocarbon burns completely in excess of oxygen and thus by giving 4 L

each of carbondioxide and water vapour. (2R,3S)-Butane-2,3-diol is obtained when this

hydrocarbon is treated with cold and alkaline KMnO4. The hydrocarbon is

1) 2-Methylprop-1-ene 2) But-1-ene

3) (2Z)-But-2-ene 4) (2E)-But-2-ene

Directions: Question No. 30 and 31 are based on the following paragraph.

The standard reduction potentials of F2, Cl2, Br2 & I2 for the single electrode Pt,X2(1 atm)/X-

(1 M) are respectively +2.87 V, +1.36 V, +1.065 V & +0.536 V. The halogen with higher

reduction potential is stronger oxidising agent. Reduction potential of chlorine is less than that

of fluorine eventhough its electron affinity is greater than that of fluorine.

30) An aqueous solution contains a mixture of fluoride, chloride and iodide salts of potassium.

V.ADITYA VARDHAN

HTTP://WWW.ADICHEMADI.COM

7

Prepared by V. Aditya vardhan adichemadi(at)gmail.com WARANGAL

The ions observed immediately after excess of chlorine gas is bubbled through this solution

under cold conditions are

1) K+, H+, F-, Cl- & ClO3

- 2) K+, H+, F- & OI-

3) K+, H+, F-, OCl- & Cl- 4) K+, H+, OCl- & F-

31) Reduction potential of chlorine is less than that of fluorine. The best explanation for this

observation is

1) Chlorine has less electronegativity than fluorine.

2) Enthalpy of hydration of choride ion is higher than that of fluoride ion.

3) Enthalpy of hydration of fluoride ion is higher than that of choride ion.

4) Bond enthalpy of chlorine is smaller than that of fluorine.

32) The number of isomers, with the formula C4H8, which can decolorize bromine/CCl4 in dark is

1) 5 2) 4 3) 3 4) 2

33) A solution of two liquids behaves ideally when

1) Hmixture 0 2) 0 mixture S  3) 0 mixture V  4) 0 mixture H 

34) Commonly used antiseptic, dettol is a mixture of

1) Furacine and Soframycin 2) Terpineol and Chloroxylenol

2) Saccharin and Bithionol 3) Sucrolose and Alitame

35) The major product formed in the following reaction is

COCl

H2

Pd, BaSO4

1)

CHO

2)

CH2OH

3)

CHO

4)

CH2OH

key

1) 3 2) 3 3) 4 4) 4 5) 1 6) 3 7) 2 8) 4 9) 1 10) 2 11) 3 12)3

13) 1 14) 3 15) 3 16) 3 17) 1 18) 3 19) 3 20) 2 21) 1 22) 2 23) 2 24) 1

25) 3 26) 4 27) 2 28) 4 29) 3 30) 3 31) 3 32) 1 33) 4 34) 2 35) 3