Question

Among the given compounds I-III, the correct order of bond dissociation energy of C–H bond marked with \({}^*\) is :

(1) \(II > I > III \)

(2) \(I > II > III \)

(3) \(III > II > I \)

(4) \(II > III > I\)

Answer 1

Correct option is:  (1) \(II > I > III \)

Higher the percentage s character, stronger is C–H bond.

Correct order of bond dissociation energy of C–H bond: \(II > I > III\)