Which statement correctly describes electrochemical cells?
a)electrochemical cells involve only oxidation reactions.
b)electrochemical cells involve only reduction reactions.
c)electrochemical cells involve oxidation-reduction reactions.
d)electrochemical cells do not involve oxidation-reduction reactions.

The correct option is C

Explanation:

Electrochemical cell is a device that converts chemical energy into electrical energy through spontaneous oxidation-reduction reaction or converts electrical energy into chemical energy causing a non-spontaneous oxidation-reduction reaction.

Oxidation occurs in the anode (the positively charged electrode) while reduction occurs at the cathode (negatively charged electrode) of the electrochemical cell.

since electrons are negative the answer is neagtaive

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hope i !