Question

The hybridisation of carbon atoms in ethane doesn’t change during :

• A. pyrolysis
• B. combustion
• C. halogenation
• D. both halogenation and combustion

Answer 1

The correct option is C halogenation

A. Pyrolysis : The pyrolysis product of ethane is ethylene. In ethylene molecule, the carbon atom is $s{p}^2$ hybridized.

B. Combustion : In combustion reaction, ethane is turned into carbon dioxide, which is also $s{p}^2$ hybridized.

C. Halogenation : The halogenation reaction is a replacement type of reaction where one hydrogen atom of ethane gets replaced by a halogen atom. So, the hybridisation state does not change during the reaction. So, the correct answer is (C).