How many resonance forms can be written for the nitrate ion, $(NO^-_3)$ ?
$1$
$2$
$3$
$4$
Resonance is due to
Which one in the following is not the resonance structure of $C{O_2}$
${{\rm{H}}_3}{\rm{P}}{{\rm{O}}_3}$ can be represented by structure $1$ and $2$ shown below. Can these two structures be taken as the canonical forms of the resonance hybrid representing ${{\rm{H}}_3}{\rm{P}}{{\rm{O}}_3}$ ? If not, give reasons for the same.
In benzene molecule all $C - C$ bond lengths are equal because
Which of the following conditions is not correct for resonating structures?