Chemistry 2014 | Study Mode

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Question 21
A
0 to + 4
B
0 to + 2
C
+ 1 to + 2
D
+ 1 to + 3
Explanation

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Correct option: B
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Question 22
A
CO(g)
B
C(s)
C
H2O(g)
D
H(2)(g)
Explanation

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Correct option: C
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Question 23
A
32395.5
B
30156.3
C
60784.5
D
15196.5
Explanation
Cu Cu2++ 2e
64g Cu requires 2 x 96500 coloumbs 10g Cu requires x columbs
x = 10x2x96500/64 =30156.3

Correct option: B
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Question 24
A
1.00F
B
0.01F
C
0.05F
D
0.50F
Explanation
Cu Cu2+ + 2e
1mole Cu requires 2f
0.25 mole Cu requires x
x = 0.25x2/1 = 0.50f

Correct option: D
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Question 25
A
+2081 Jmol-1
B
-2081 Jmol-1
C
-649 Jmol-1
D
+649 Jmol-1
Explanation
G = H - TS
-899 = H - 2980
H = -899 + 2980 = + 2081 Jmol-1

Correct option: A
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Question 26
A
Equilibrium constant is very large
B
H - TS = O
C
H > T S
D
Equilibrium constant is less than zero
Explanation

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Correct option: A
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Question 27
A
entropy of reaction
B
enthalpy of reaction
C
rate of reaction
D
order of reaction
Explanation

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Correct option: C
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Question 28
A
more of the products will be formed
B
the reaction will not proceed
C
the equilibrium position will shift to the right
D
the equilibrium position will shift to the left.
Explanation

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Correct option: D
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Question 29
A
Lead
B
Magnesium
C
Cpper
D
Gold
Explanation

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Correct option: B
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Question 30
A
O 2
B
SO 2
C
HCI
D
H 2
Explanation

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Correct option: C

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