Question

Which of the following will not undergo addition reaction?

Options

• C₄H₈

• C₂H₂

• C₃H₈

• C₂H₄

Answer 1

C₃H₈

Explanation:

Addition reactions are shown by unsaturated hydrocarbons (alkenes and alkynes), which have double or triple bonds. C₄H₈ and C₂H₄ are alkenes, and C₂H₂ is an alkyne, so they undergo addition reactions. C₃H₈ (propane) is a saturated hydrocarbon (alkane) with only single bonds, so it does not undergo addition reactions.