Hydrogen peroxide in its reaction with \(\mathrm{KIO}_{4}\) and \(\mathrm{NH}_{2} \mathrm{OH}\) respectively, is acting as a

(A) reducing agent, oxidising agent

(B) reducing agent, reducing agent

(C) oxidising agent, oxidising agent

(D) oxidising agent, reducing agent

Hydrogen — JEE Advanced · 2014 · 25 May 2014 · Paper 2 Question with Solution

Hydrogen peroxide in its reaction with

KIO_{4}

and

NH_{2} OH

respectively, is acting as a

Answer: (A)

In the reaction with

KIO_{4}

, hydrogen peroxide acts as a reducing agent because

IO_{4}^{-}

(periodate) is a strong oxidizing agent and gets reduced, while

H_{2} O_{2}

gets oxidized to

O_{2}

.

In the reaction with

NH_{2} OH

(hydroxylamine), hydrogen peroxide acts as an oxidizing agent because hydroxylamine is a reducing agent and gets oxidized (to

N_{2}

or other nitrogen oxides), while

H_{2} O_{2}

gets reduced to

H_{2} O

JEE Advanced · 2014 · 25 May 2014 · Paper 2 · Single correct option