Question

The energy required to break all the bonds in ethene is ethyne.

• A. Less than
• B. Equal to
• C. More than

Answer 1

The correct option is A Less than

Ethene has double bond and Ethyne has triple bond.
As the shared electrons in triple bond are more than the double bond, the energy required to break the double bond in ethene molecule is less than the energy required to break the triple bond in the ethyne molecule.