Which of these occurs(s) during reduction?
A) Gaining electrons
B) Gaining hydrogen
C) Losing oxygen
D) All of these
E) None of these

Question

Quizplus · Accepted Answer

Reduction involves either gaining electrons or gaining hydrogen (which usually involves gaining electrons as well), and often results in a molecule losing oxygen (which is why reduction is sometimes called "de-oxidation"). Therefore, all of the choices (A, B, and C) are correct.

Which of These Occurs(s) During Reduction