Question

Which of the following can undergo addition reactions?

• A. ${\text{C}}_2{\text{H}}_4$
• B. ${\text{C}}_2{\text{H}}_6$
• C. ${\text{CH}}_4$
• D. ${\text{C}}_3{\text{H}}_8$

Answer 1

The correct option is A

${\text{C}}_2{\text{H}}_4$

Saturated hydrocarbons do not under go addition reaction. Addition reaction is limited to unsaturated hydrocarbons only.

An unsaturated hydrocarbon, i.e. alkene ${\text{C}}_2{\text{H}}_4$ (ethene) can undergo addition reaction.