Which of the following statements is not correct for sigma …

Chemistry Chemical Bonding and Molecular Structure Polarisation and Fajan's Rule Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 13, 2026

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

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

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.

Text Solution

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The correct answer is:

Since bond is weaker than s bond the stated value of bond energies are wrong.

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