In benzene,all the six $C-C$ bonds have the same length because of

What is the correct increasing order of $C-O$ bond length in $CO$,$CO_3^{2-}$,and $CO_2$?

Give the resonance structures of nitromethane and explain its real structure.

Which of the following resonating structures of $1$-methoxy-$1, 3$-butadiene is least stable?

Explain the important aspects of resonance with reference to the $CO_3^{2-}$ ion.

$A$ molecule may be represented by three structures having energies $E_1$,$E_2$ and $E_3$,respectively. The energies of these structures follow the order $E_3 < E_2 < E_1$. If the experimental bond energy of the molecule is $E_0$,the resonance energy is