Question

In which of the following reactions of H$_2$O$_2$ acts as an oxidizing agent (either in acidic, alkaline, or neutral medium)? 
(i) \( 2Fe^{2+} + H_2O_2 \rightarrow \) 
(ii) \( 2MnO_4^- + 6H^+ + 5H_2O_2 \rightarrow \) 
(iii) \( I_2 + H_2O_2 + 2OH^- \rightarrow \) 
(iv) \( Mn^{2+} + H_2O_2 \rightarrow \) 
 

• A. (ii), (iii)
• B. (i), (iv)
• C. (i), (iii)
• D. (ii), (iv)

Hint:

Hydrogen peroxide (\( H_2O_2 \)) is a versatile redox agent that can act as either an oxidizing or reducing agent, depending on the reaction medium.