Question

Which of the following hydrocarbons undergo addition reactions?
C₂H₆, C₃H₈, C₃H₆, C₂H₂ and CH₄

Answer 1

Unsaturated hydrocarbons (i.e., hydrocarbons having double or triple bonds) undergo addition reactions.
i. C₂H₆ (Ethane) is a saturated hydrocarbon. It does not undergo addition reactions.
ii. C₃H₈ (Propane) is a saturated hydrocarbon. It does not undergo addition reactions.
iii. C₃H₆ (Propene) is an unsaturated hydrocarbon. It undergoes addition reactions.
iv. C₂H₂ (Ethyne) is an unsaturated hydrocarbon. It undergoes addition reactions.
v. CH₄ (Methane) is a saturated hydrocarbon. It does not undergo addition reactions