when hydrogen reacts with oxygen, oxygen gains electrons. which term describes what happens to oxygen in…

when hydrogen reacts with oxygen, oxygen gains electrons. which term describes what happens to oxygen in this reaction?\na. redox\nb. reduction\nc. oxidation\nd. synthesis
Answer
Brief Explanations:
Reduction is defined as the gain of electrons in a chemical reaction. Since oxygen gains electrons in the reaction with hydrogen, this is a reduction process. Redox refers to both oxidation and reduction happening together. Oxidation is the loss of electrons. Synthesis is the combination of substances to form a new compound.
Answer:
B. Reduction