Which of the following is correct ?

Options

A. Oxidation fo a substance is followed by reduction of another substance
B. Reduction of a substance is followed by oxidation of another substance.
C. Oxidation and reduction are complementary processes
D. All of these

Answer

C

Explanation

Oxidation and reduction always occur simultaneously, and to the same exent, in ordinary chemical reactions. For brevity, we usually call oxidation-reduction reactions as redox reactions.