In acetylene (C₂H₂), hybridization of carbon atoms is:

Correct option is D

The correct answer is (d) sp
• In acetylene, each carbon atom undergoes sp hybridization.
• This involves mixing one s and one p orbital, forming two sp hybrid orbitals oriented linearly (180° apart).
• The remaining two p orbitals form two π bonds, creating a triple bond between carbon atoms.
• The molecular geometry around carbon is linear, consistent with sp hybridization.
Information Booster:
• sp hybridization is characteristic of alkynes with triple bonds.
• The bond angle is approximately 180°.
• sp² hybridization is seen in alkenes, and sp³ in alkanes.
• The σ bond in acetylene is formed by sp-sp overlap, π bonds by unhybridized p orbitals.
Additional Information:
• Options (a) and (b) refer to hybridizations not applicable to acetylene.
• Option (c) corresponds to single-bonded carbon atoms.