Class 12

16. Electrochemistry question bank (Chemistry)

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Q1.

Given:

(i) Cu²âº + 2e⁻ → Cu, E° = 0.337 V  
(ii) Cu²âº + e⁻ → Cu⁺, E° = 0.153 V  
Electrode potential, E° for the reaction, Cu⁺ + e⁻ → Cu, will be:-  

(A)
0.38 V
(B)
0.52 V
(C)
0.90 V
(D)
0.30 V
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Q2.

The equivalent conductance of M/32 solution of a weak monobasic acid is 8.0 mho cm² eq⁻¹ and at infinite dilution is 400 mho cm² eq⁻¹. The dissociation constant of this acid is:-  

(A)
1.25 × 10⁻⁴
(B)
1.25 × 10⁻⁵
(C)
1.25 × 10⁻⁶
(D)
6.25 × 10⁻⁴
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