Question

Identify the species having one $\pi$-bond and maximum number of canonical forms from the following :

• A. $S{O}_2$
• B. $O_2$
• C. $C{O}_3^{2-}$
• D. $S{O}_3$

Answer 1

The correct option is C $C{O}_3^{2-}$

$S{O}_2$


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