# Can hydrogen peroxide reduce ferric ion to ferrous ion?

I have studied that hydrogen peroxide always oxidizes ferrous ion to ferric ion (source of study : NCERT Chemistry Part II, Textbook for Class XI), but a question came in IIT JEE 2015 which states:

The answer given is A and B but I doubt that the answer is correct as I have studied the following reactions in my book :

$$\ce{2Fe^{2+}(aq) + 2H^{+}(aq) + H_2O_2(aq) -> 2Fe^{3+}(aq) + 2H_2O(l)}$$

$$\ce{2Fe^{2+} + H_2O_2(aq) -> 2Fe^{3+} + OH^{-}}$$

Where am I possibly going wrong?

• Yes, H2O2 is both easily reduced and oxidised. – Mithoron Jun 20 at 18:08
• You are right, and your book is wrong. It is easy to show in a simple test tube. In presence of $\ce{H2O2}$, the $\ce{Fe^{2+}}$ ion is always oxidized, whatever the presence of an acid or a base in solution. – Maurice Jun 20 at 18:33
• @Maurice I think you mean to say that the question is wrong as my book states that in presence of $H_2O_2$, $Fe^{2+}$ is always oxidized to $Fe^{3+}$. – ecneics Jun 20 at 18:42
• @sochemistry, Your textbook is right. It is just that question is wrong. – M. Farooq Jun 20 at 18:46
• The book example looks like the peroxide is oxidising ferrous to ferric, which is kind of what I'd expect an oxidising agent to do. Think someone made a mistake (or two) writing the question. – Bloke Down The Pub Jun 22 at 22:37