In a cell that utilizes the reaction Zn (s) + 2H + (aq) → Z…

Chemistry Electrochemistry JEE Advanced Previous Years Question Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 14, 2026

In a cell that utilizes the reaction Zn (s) + 2H + (aq) → Zn 2+ (aq) + H 2(g) ,

addition of H 2 SO 4 to cathode compartment will :

lower the E and shift equilibrium to the left.

lower the E and shift the equilibrium to the right.

increase the E and shift the equilibrium to the right.

increase the E and shift the equilibrium to the left.

Text Solution

Verified by Experts

The correct answer is:

Zn + 2H + (aq) Zn 2+ (aq) + H 2 (g)

E = Eº – log

Adding H 2 SO 4 means increasing H + and therefore E cell will increase and reaction will shift to forward direction.

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