1. 1
CHEMISTRY[IRTPF-FT-VI-P2]
MULTIPLE CHOICE QUESTIONS (SINGLE OPTION CORRECT)
25. In the commercial electrochemical process of aluminium extraction, the electrolyte used is
(A) Al2O3 in Na3AlF6 (B) fused mixture of Al2O3 + Al(OH)3
(C) an aqueous solution of AlCl3 (D) Al(OH)3 + NaOH fused
26. 1mole HCOOH and 1 mole CH3COONa are mixed with 1 mole CH3COOH and 1 mole HCOONa.
Final volume of the solution is 1 L, then pH of the final solution (approximate) is
Given [Ka(HCOOH) = 10-4
, ka (CH3COOH)=10-5
]
(A) 4.7 (B) 4
(C) 4.5 (D) 4.3
27. When excess of SnCl2 is added to HgCl2, the substance formed is
(A) HgCl2 (B) Sn
(C) Hg (D) Cl2
28. An aromatic compound has molecular formula C7H7Br. Give the possible isomers and the
appropriate method to distinguish them.
(A) 3 isomers; by heating with AgNO3 solution (B) 4 isomers; by treating with AgNO3 solution
(C) 4 isomers; by oxidation (D) 5 isomers; by oxidation
29. The product B in the reaction is
2 6
2
B H
Cu
3 3 573 K OH /D O
(CH ) COH A B


 
(A)
H3C CH3
CH3
OD
(B)
H3C
CH3
H OH
(C)
H3C
CH3
H OD
(D)
H3C
CH3
D OH
30. Among
Me
OH
I
NO2
(I)
and
OH
NO2
Me
I
(II)
, the two compound the acidic strength is–
(A) I > II (B) II > I
(C) I = II (D) Cannot be predicted
31. Which reagent(s) can be used to make distinction between an aldose and a ketose?
(I) Br2 water, (II) Tollen’s reagent and (III) Fehling solution
(A) (I), (II) and (III) (B) (II) and (III)

2. 2
(C) Only (I) (D) Only (II)
32. Certain chemical tests were performed on the pain-relief drug ibuprofen. The results of these tests
are given in the table below:
Test Result
Aqueous sodium carbonate Effervescence
Bromine water Remained orange
Acidified potassium dichromate (VI) and heat Remained orange
Fehling’s solution and heat Remained blue
Which one of the following functional groups do these results suggest that ibuprofen contains?
(A)
H
O
(B)
H
H
OH
(C) (D)
OH
O
33. Bicyclohexane was found to undergo two parallel 1st
order rearrangements. At 730 K the first order
rate constant for the formation of cyclohexene was 1.26  10–4
s–1
and for the formation of methyl
cyclopentene the rate constant was 3.8 10–5
s–1
. What was the percentage distribution of methyl
cyclopentene.
(A) 77% (B) 23%
(C) 66% (D) 34%
34. Which of the following substances represent a colourless substance?
(A) H5C6
N
N
C6H5
O
(B) H5C6
N
N
C6H5
(C) H5C6
NH
NH
C6H5
(D) None of the above
35. The Solvay process used for the manufactured of washing is based on the following fact:
(A) Ammonia is soluble in water
(B) Sodium carbonate is very stable compound
(C) Sodium bicarbonate is sparingly soluble in water in the presence of excess of CO2
(D) Sodium bicarbonate is insoluble in water
36. The temperature of an ideal gas is increased from 140 K to 560 K. If at 140 K the root mean
square velocity of the gas molecule is V, at 560 K it becomes
(A) 5V (B) 2V
(C) V/2 (D) V/4
MULTIPLE CHOICE QUESTIONS (MULTIPLE OPTIONS CORRECT)
37. Which of the following statements is/are correct?
(A) The coordination number of each type of ion in CsCl crystal is 8
(B) A metal that crystallizes in bcc structure has coordination number of 12
(C) A unit cell of an ionic crystal shares some of its ions with other unit cells

3. 3
(D) The length of the unit cell in NaCl is 552 pm
 
Na Cl
r 95pm;r 181pm
 
 
38. 50 ml of 0.01 M Cu2S require 20 ml of 0.05 M KMnO4 for complete oxidation to CuSO4, then
(A) molar ratio of Cu2S : KMnO4 = 1 : 2
(B) oxidation number of S in CuSO4 is +2
(C) equivalent weight of Cu2S M
10

(D) number of equivalents of Cu2S = 4 meq.
39. Which set of quantum numbers is/are not consistent with the theory?
(A) 1
n 2, 0, m 1, s
2
     
(B) 1
n 2, 0, m 0, s
2
    
(C) 1
n 1, 1, m 0, s
2
     
(D) 1
n 3, 3, m 3, s
2
     
40.
Cl
Cl
and
Cl
Cl
are...... isomers.
(A) position (B) geometrical
(C) optical (D) none
41.   2
Br
A cis 2butene I
 

2
Br
(B)trans 2butene II
 

correct statement(s) about above reactions is/are
(A) I is racemic mixture by anti addition
(B) II is meso compound by anti addition
(C) I is meso compound by syn addition
(D) II is racemic compound by syn addition
42. CH3CH2NO2 will show which type of isomerism?
(A) position (B) functional
(C) geometrical (D) tautomerism
43. The standard emf for the cell reaction,
2 2
Zn Cu Cu Zn ,
 
 
  is 1.1 V at 25o
C. If 0.1 M Cu2+
and 0.1 M Zn2+
solutions are used then
(A) the emf of cell = 1.15 V (B) emf of cell = 1.1 V
(C) reaction will be spontaneous (D) reaction will be non-spontaneous
44. Compound (X), molecular formula C8H8O, is water insoluble and gives yellow ppt. with I2/NaOH. It
reacts with H2N – OH in the presence of NH4Cl/NH4OH to give two geometrical isomers, which do not
undergo dehydration but can go for rearrangement with acids. Compound (X) can be,
(A)
H5C6 CH3
O
(B) H5C6 CHO

4. 4
(C)
H5C6 CH3
OH
(D)
O
H3C
MATCH THE FOLLOWING QUESTIONS
45. Match List–I and List–II.
List – I List - II
(A) The limits of pH values of buffer
solution.
(i) 12
5 10

(B) The [H3O]+
concentration in 0.001 M
Ba(OH)2 solution.
(ii) Equal
(C) The buffer capacity of a solution is
maximum when conc. of salt to that
acid is:
(iii) 1st
order reaction
(D) Hydrolysis of ethyl acetate in acidic
solution.
(iv) a
pK 1

46. Match the following:
List – I
Reaction
List - II
Product
(A) Borax 

 (i) H2B4O7
(B) 4
Borax NH Cl 
 
 (ii) NaBO2 + B2O3
(C) HCl
Borax 
 (iii) BN
(D) 2
Borax H O
 
 (iv) H3BO3
47. Match list – I with list – II.
List – I List – II
(A) Half life period of first order reaction (i) T
T
K 10
K

(B) Molecular concentration (ii) 0.693
0.5 K
t 
(C) Temperature coefficient (iii) active mass
(D) Half life period of zero order reaction (iv) a
2K
48. List – I List - II
(A) Rate of diffusion (i) Proportional to mole fraction
(B) Kinetic energy (ii) Proportional to (1/density)
(C) Pressure on a wall (iii) Proportional to temperature
(D) Partial pressure (iv) Proportional to momentum

5. 5
ANSWERS
25. A
26. C
27. C
28. C
29. C
30. B
31. C
32. D
33. B
34. C
35. C
36. B
37. A, C, D
38. A, C
39. A, C, D
40. B, C
41. A, B
42. B, D
43. B, C
44. A, D
45. A (iv)
B (i)
C (ii)
D (iii)
46. A (ii)
B (iii)
C (iv)
D (i)
47. A (ii)
B (iii)
C (i)
D (iv)
48. A (ii)
B (iii)
C (iv)
D (i)
HINTS & SOLUTIONS
27. SnCl2 reduces HgCl2 to Hg2Cl2 and finally to Hg.
2 2 2 2 4
2HgCl SnCl Hg Cl SnCl
 
 
2 2 2 4
Hg Cl SnCl 2Hg SnCl
 
 

6. 6
28. Br
,
CH3
Br
,
CH3
Br
,
CH3
Br
30. In (I) steric inhibition is available.
32.
OH
O
Group reacts with NaHCO3 to give H2 gas.
33. 4
4 5
1.26 10
(1.26 10 ) (3.8 10 )

 

  
= 77% cyclohexene
 methyl cyclopentene = (100 – 77) = 23%
39. (A) If 0, then m 1.
   Hence, (A) is incorrect.
(B) It is the correct set.
(C) If n = 1, then 1.
  Hence, (C) is not correct.
(D) If n = 3, then m 3.
 Hence, (D) is also incorrect.
Hence, (A, C, D).
43. o 0.0591 [P]
E E log
n [R]
 
E = 1.1 – 0
= 1.1
44. Compound (X) is having
C
H3
O
group as it gives positive haloform test.
Hence, (X) should be (A) and (D).