Question

The $C-H$ bond energy in ethane, ethene and ethyne:

• A. more in ethane
• B. more in ethane
• C. more in ethyne
• D. same in all the above

Answer 1

Answer: (C)

$H-\underset{|}{\stackrel{|}{C}}-<=\stackrel{|}{C}-H<\equiv C-H$ Bond energy $411444.14506.99J$ . $mol{e}^{-1}$ So the $C-H$ bond energy is more in ethyne