• # question_answer In which of the following reaction hydrogen peroxide is a reducing agent [BHU 1995] A) $2FeC{{l}_{2}}+2HCl+{{H}_{2}}{{O}_{2}}\to 2FeC{{l}_{3}}+2{{H}_{2}}O$ B) $C{{l}_{2}}+{{H}_{2}}{{O}_{2}}\to 2HCl+{{O}_{2}}$ C) $2HI+{{H}_{2}}{{O}_{2}}\to 2{{H}_{2}}O+{{I}_{2}}$ D) ${{H}_{2}}S{{O}_{3}}+{{H}_{2}}{{O}_{2}}\to {{H}_{2}}S{{O}_{4}}+{{H}_{2}}O$

$\underset{0}{\mathop{C{{l}_{2}}}}\,+{{H}_{2}}{{O}_{2}}\to \underset{-1}{\mathop{2HCl}}\,+{{O}_{2}}$ In this reaction ${{H}_{2}}{{O}_{2}}$ works as reducing agent