Explain the types of addition reactions?

Explanation

Addition reactions are classified into three types. They are,
(i) Electrophilic addition reaction.
(ii) Nucleophilic addition reaction.
(iii) Free radical addition reaction
(i) Electrophilic addition reaction: An electrophilc addition reaction can bedescibed as an addition reaction in which a reactant with multiple bonds as in a double or triple bond undergoes has its `pi` bond broken and two new `rho` bond are formed.

(ii) Nucleophilic addition reaction: A nucleophilic addition reaction is an addition reaction where a chemical compound with an electron deficient or electrophilic double or triple bond, a `pi` bond, reacts with a nucleophilic which is an electron rich reactant with the disappearance of the double bond and creation of two new single or `rho` bonds.

(iii) Free radical addition reaction: It is an addition reaction in organic chemistry involving free radicals. The addition may occur between a radical and a non radical or between two radicals.
`underset ("ethene") (CH_(2) =CH_(2)) + H-Br overset("Benzoyl peroxide") to underset ("ethyl bromide") (CH_(3) - CH_(2)-Br)`