ICSE Class 10 Answered

Addition reaction:

• The reaction which involves the direct addition of an attacking agent, across the double or triple bonds is called addition reactions.
• An unsaturated hydrocarbon combines with another substance to give a single product.
• Addition reaction like the addition of hydrogen, chlorine or bromine is a characteristic property of unsaturated hydrocarbons.
• This reaction occurs only in unsaturated compounds where there are double or triple bonds.

e.g.