Identify the species having one $\pi$-bond and maximum number of canonical forms from the following :
$\mathrm{CO}_{3}^{2-}$
$\mathrm{O}_{2}$
$\mathrm{SO}_{2}$
$\mathrm{SO}_{3}$
Explain why ${\rm{CO}}_3^{2 - }$ ion cannot be represented by a single Lewis structure. How can it be best represented ?
All the $( \mathrm{C -O} )$ bonds in carbonate ion $\left( {{\rm{CO}}_3^{2 - }} \right)$ are equal in length. - Explain.
In $PO_4^{3 - }$ ion, the formal charge on each oxygen atom and $P - O$ bond order respectively are
The correct order of $Cl - O$ bond order is
In benzene molecule all $C - C$ bond lengths are equal because