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JEE Main levelOne or more correct optionsDifficulty 2 of 3cb099

Select the correct statements.

AThe C-C bond in ethyne is shorter than the C=C bond in ethene
BThe C=C bond in ethene is shorter than the C-C bond in benzene
CThe C-C bond in benzene is longer than the C-C bond in ethane
DThe C-C bond in ethane is shorter than the C-C bond in ethyne

Answer: A, B

Lengths are about 120 pm (ethyne), 134 pm (ethene), 139 pm (benzene) and 154 pm (ethane). The first two statements agree with these values; the last two reverse them.

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