Resonance hybrid of nitrate ion is
$\begin{matrix}
^{-1/2}O\underline{\overline{\cdots }}N\underline{\overline{\cdots }}{{O}^{-1/2}} \\
|\vdots | \\
\,\,\,\,\,\,\,\,\,{{O}^{-1/2}} \\
\end{matrix}$
$\begin{matrix} ^{-2/3}O\cdots N\cdots {{O}^{-2/3}} \\
\vdots \\
\,\,\,\,\,\,\,\,\,{{O}^{-2/3}} \\
\end{matrix}$
$\begin{matrix}
^{-2/3}O\cdots \overset{+}{\mathop{N}}\,\cdots {{O}^{-2/3}} \\
\vdots \\
\,\,\,\,\,\,\,\,\,{{O}^{-2/3}} \\
\end{matrix}$
$\begin{matrix}
^{-1/3}O\underline{\overline{\cdots }}N\underline{\overline{\cdots }}{{O}^{-1/3}} \\
|\vdots | \\
\,\,\,\,\,\,\,\,\,{{O}^{-1/3}} \\
\end{matrix}$
How many $\sigma $ and $\pi $ bonds are there in the molecule of tetracyanoethylene
$\begin{array}{*{20}{c}} {N \equiv C} \\ {N \equiv C}\end{array}\,\,\left. {} \right\rangle C = C\,\left\langle {} \right.\,\begin{array}{*{20}{c}} {C \equiv N} \\ {C \equiv N} \end{array}$
${{\rm{H}}_3}{\rm{P}}{{\rm{O}}_3}$ 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.
Draw the resonating structure of $(A)$ Ozone molecule $(B)$ Nitrate ion
Point out incorrect statement about resonance
What is Resonance structure ? Why the resonances stricture required explain with suitable example.