Which one of the following statements is not correct for si…

Chemistry Chemical Bonding and Molecular Structure NEET Previous Year Question Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 13, 2026

Which one of the following statements is not correct for sigma ‐ and pi ‐ bonds formed between two carbon atoms?

Sigma ‐ bond is stronger than a pi ‐ bond.

Bond energies of sigma ‐ and pi ‐ bonds are of the order of 264 kJ/mol and 347 kJ/mol, respectively.

Free rotation of atoms about a sigma ‐ bond is allowed but not in case of a pi ‐ bond.

Sigma ‐ bond determines the direction between carbon atoms but a pi ‐ bond has no primary effect in this regard.

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The correct answer is:

We know C ‐ C kJ/mol

kJ/mol

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