Question

42.What is the source of the electric current produced by a voltaic cell?
A. a spontaneous oxidation-reduction reaction
B. competing salt bridges
C. non-spontaneous reduction at the cathode
D. an imbalance of ion charges

Answer 1

I think is Gonna be C

Answer 2

Answer:

This is a spontaneos oxidation-reduction reaction. A would be the answer.

Explanation: