Explain the types of substitution reaction ?

Explanation

Substitution reactions are classified into three types they are .
(i) Nucleophilic substitution reaction : A nucleophilic substitution reaction in organic chemistry is a type of reaction where a nucleophilic gas attached to the positive charged atom or molecules of the other substance . A Good example of a nucleophilic susbstitution reaction the hydrolysis of alkyl bromide, under the basic conditions where in the nucleophile is nothing but the base `overset (-) (O)H` , where as the leaving group in the ` Br^(-)` , the reaction for the following is as given below .
`underset ("bromide") underset ("Methyl")(CH_(3) Br ) overset (-)overset(OH)to underset ("Methanol ")(CH_(3) OH + Br^(Theta))`
(ii) Electrophilic institution reaction :
The electrophilic substitution involver the electrophiles the electrophilic reaction occurs mostly with the aromatic compounds. This type of substitution reaction are basically defined as those chemical reactions where the electrophile replaces the functional group in a compound but not the hydrogen atom, sometimes hydrogen atom can be also replaced by electrophilies .
For example :