• # question_answer All bonds in benzene are equal due to [Roorkee 1990; KCET 1998] A) Tautomerism B) Inductive effect C) Resonance D) Isomerism

All the bonds $(C-C)$ are equal in benzene. The $C-C$ bond length is $1.39\text{{ }\!\!\mathrm{\AA}\!\!\text{ }}$ which is in between $C-C$ bond $\underset{\begin{matrix} {} \\ \begin{smallmatrix} \text{1, 2, 3-Trimethyl} \\ \text{benzene} \end{smallmatrix} \\ \end{matrix}}{\mathop{\begin{matrix} C{{H}_{3}} \\ {} \\ {} \\ \end{matrix}\,\,\,\,}}\,$ and $C=C$ $(1.34\text{{ }\!\!\mathrm{\AA}\!\!\text{ }})$.