$\begin{array}{1 1} \text{In acid solution } HCl0_2 \text{disproportionate to} ClO_2\;and\;Cl \\ \text{In warm acid solution Cl0 disproportionates to yield Cl and Cl0_3} \\ \text{Both} cl0_4\; and\; cl0_3 \text{ are powerful oxidizing agents } \\ \text{All of them } \end{array} $
