Which of the following is not an oxidation-reduction reaction?
A) A reaction in which a metal reacts with a nonmetal
B) A combustion reaction
C) A precipitation reaction
D) A metal reacting with an acid
E) All of these are oxidation-reduction reactions

Question

Quizplus · Accepted Answer

A precipitation reaction is not an oxidation-reduction reaction because it involves the formation of a precipitate (solid) from the reaction of two aqueous solutions. There is no transfer of electrons between species as is necessary for an oxidation-reduction reaction to occur.

Which of the Following Is Not an Oxidation-Reduction Reaction