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Question

If the e.m.f of a galvanic cell is negative, it implies that:

This question has multiple correct options

A

the cell reaction is spontaneous

B

the cell reaction is non-spontaneous

C

the cell reaction is exothermic

D

the cell is working in reverse direction

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Solution

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Correct options are B) and D)

If the e.m.f of a galvanic cell is negative, it means emf is positive for reverse reaction and reverse reaction is spontaneous,
also cell is working in reverse direction.

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Given are the standard oxidation potentials;
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