# Oxidation of Vitamin C

How is ascorbic acid oxidized into dehydroascorbic acid? What is the reduction reaction in this case? Where are the 2 hydrogen atoms going?

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• I think this question is too broad, it would be useful to see it narrowed down. Also, a little searching reveals some good hits explaining possible mechanisms. The underlying question (is there a duplicate?) seems very interesting (if, again, broad): what is the biochemical mechanism of oxidation of ascorbic acid. Jul 25 '19 at 20:13

## 1 Answer

Think of oxidation in a classical sense for a minute or so. Oxidation is the addition of oxygen to a molecule or it can also mean the removal of hydrogen. If you carefully look at the structure of ascorbic acid, you will see that the two -$$\ce{OH}$$ groups are now converted into carbonyl groups. Those two hydrogens can be lost as a proton, $$\ce{H+}$$.