The alcoholic solution of K O H is used in which type of the organic reactions?

Step-by-step solution

C H 3 C H 2 B r + a l c K O H → dehydrohalogenation C H 2 = C H 2 + K B r + H 2 O In alcoholic KOH alkoxide ions R O - are present which is a strong base. They abstract proton from beta carbon of alkyl halide and favours elimination reaction R O H + K O H → R O K + H 2 O R O K → R O - + K + R O - + H - C H 2 β - C H 2 α - B r → R O H + C H 2 = C H 2 + B r -