Answer
Please see the work below.
Work Step by Step
We know that $OH^-$ ion is the catalyst. It is consumed in the first step and regenerated in the second step. It speeds up the reaction by providing a path way with a lower activation energy than that of a reaction pathway involving no $OH^-$ ion.
The reaction is given as
$NH_2NO_2\rightarrow NO_2+H_2O$
