Which of the following statement is not correct for sigma and pi-bonds formed between two carbon atoms ?

Options

A. Sigma-bond is stronger than a `pi`-bond
B. Bond energies of sigma and `pi` -bonds are of the order of 264 kJ / mol and 347 kJ / mol
C. Free rotation of surrounding atoms about a sigma -bond is allowed but not in case of a `pi`-bond
D. Sigma-bond determines the direction between carbon atoms but a `pi`-bond has no primary effect in this regard

Answer

B