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Question 700011

JEE Chemistry · Medium

Redox Reactions: Standard potentials MCQ

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Standard potentialsMediumQuestion 700011

Question

For spontaneous redox reaction, the standard EMF (E°cell) must be:

A
Positive
Correct
B
Negative
C
Zero
D
Undefined

Correct answer

Positive

Explanation

ΔG° = −nFE°cell. For spontaneous reaction, ΔG° < 0, so E°cell must be positive.

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