Class 11Chemistry8-1.Organic Chemistry : Classification and Nomenclature of Organic compoundsMix Examples of 8-1.Organic Chemistry : Classification and Nomenclature of Organic compounds
MediumWhich of the following statements is wrong?
- AIn $2-$methyl$-1,3-$butadiene,the bond length $\ell_2 > \ell_1$.
- BIn the tropylium cation $(C_7H_7^+)$,the bond lengths $\ell_1 = \ell_2$.
- CIn pyridine,the bond lengths $\ell_1 = \ell_2$.
- DIn cyclooctatetraene,the bond lengths $\ell_1 = \ell_2$.
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