Which of the following undergoes reduction with hydrogen peroxide in alkaline medium ?

Options

A. `Mn^(2+)`
B. HOCl
C. PbS
D. `I_(2)`

Answer

D

Explanation

It reduces iodine to iodide ion in alkaline medium.
`I_(2)(s) + H_(2)O_(2)(aq) + 2OH^(-)(aq) rarr 2I^(-)(aq) + 2H_(2)O(l) + O_(2)(g)`