Which Reaction Is an Oxidation?
A)RCHO $\to$ RCO₂H
B)RCH₂OH $\to$ RCHO
C)RCH₂OH $\to$

Which reaction is an oxidation?

A) RCHO $\to$ RCO₂H
B) RCH₂OH $\to$ RCHO
C) RCH₂OH $\to$ RCO₂H
D) None of these choices.
E) All of these choices.