The correct statement(s) about the oxoacids, $HCl{O}_4$ and $HClO$ , is(are)

(A) $HCl{O}_4\underset{ }{\rightleftharpoons }{H}^{+}+Cl{O}_4^{-}$

$HClO\underset{ }{\rightleftharpoons }{H}^{+}+Cl{O}^{-}$

$Cl{O}_4^{-}$ is resonance stabilized anion

$\therefore HCl{O}_4$ is more acidic than $HClO$

(B)  $C{l}_2+H_{2}O\stackrel{ }{\to }HClO+HCl$

(C)  $HCl{O}_4$ Central is $s{p}^3$ hybridised

$HClO$Central atom is $s{p}^3$ hybridised

(D)  $HCl{O}_4+H_{2}O\to H_3{O}^{\oplus }+Cl{O}_4^{-}$ since $H_{2}O$ is accepting $H^{+}$ from $HCl{O}_4$ so $H_{2}O$ is stronger basic compare to $Cl{O}_4^{-}$