Why are unsaturated hydrocarbons more reactive than saturated hydrocarbons?

Why are unsaturated hydrocarbons more reactive than saturated hydrocarbons?

Answer:

Unsaturated hydrocarbons are more reactive due to the presence of C=C and C=C bonds which are weaker than the single bond in saturated hydrocarbons. These double and triple bonds are the reactive sites in the unsaturated hydrocarbons which easily give addition reactions.