A few reactions are given below:

Select the reaction type for the above reactions:

1. Reaction (i) involves the removal of $HBr$ to form an alkene. This is a dehydrohalogenation (Elimination) reaction.2. Reaction (ii) involves the replacement of $Br$ by $OH$. This is a Nucleophilic Substitution ($S_{N}1$) reaction.3. Reaction (iii) involves the adding of $H_{2}O$ across the double bond. This is an Addition reaction.