Question

Identify the species having one $\pi$-bond and maximum number of canonical forms from the following :
(JEE (MAIN)-2021)

Answer 1

$S{O}_2$


In $S{O}_3$
So, $S{O}_3$ is incorrect
$C{O}_3^{2-}$:
$C{O}_3^{2-}$ is the correct answer