question_answer

Which is the oxidant in the following reaction? \[\text{5KI}\,\text{+}\,\text{KI}{{\text{O}}_{3}}+6HCl\xrightarrow{{}}3{{I}_{2}}+6KCl+3{{H}_{2}}O\]

A)  \[{{I}_{2}}\]                                      

B)  \[KI{{O}_{3}}\]

C)         \[KI\]                   

D)         None of these

Correct Answer: B

Solution :

\[5KI+KI{{O}_{3}}+6HCl\xrightarrow{{}}3{{I}_{2}}+6KCl+3{{H}_{2}}O\] \[\text{KI}{{\text{O}}_{\text{3}}}\]is acting as oxidizing agent. It oxidizes \[\text{KI}\] into \[{{\text{I}}_{2}}\] and itself get reduced.