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Question

If the e.m.f of a galvanic cell is negative, it implies that:
  1. the cell reaction is spontaneous
  2. the cell reaction is non-spontaneous
  3. the cell reaction is exothermic
  4. the cell is working in reverse direction

A
the cell reaction is spontaneous
B
the cell reaction is exothermic
C
the cell reaction is non-spontaneous
D
the cell is working in reverse direction
Solution
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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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