The C-C bond length in propene is little shorter 149 pm than the C-C bond length 154 pm in ethane. This is due to
A. `+I` effect of `CH_(3)` group
B. Mesomeric effect
C. Electromeric effect
D. Hyperconjugation effect

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1 Answers

Correct Answer - D
Ethyl (alkyl) group is electron repelling group.

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