Q. 8

Which of the following equations depict the oxidising nature of H2 O2?
A. 2[Fe(CN)6]4 + 2H+ + H2O2 2[Fe(CN)6]3- + 2H2O

B. I2 + H2 O2 +2OH- 2I- + 2H2O + O2

C. Mn2+ + H2O2 Mn-4 + 2OH-

D. KIO4 + H2O2 KIO3 + H2O + O2

Answer :

In the reaction where ferrocyanide ion reacts with hydrogen peroxide, the oxidation state on ferrocyanide ion is +2 and it increases to +3 in ferricyanide ion in the product. So, here hydrogen peroxide acts as an oxidising agent.

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