Predict the major product $ P $ in the following sequence of reactions: (i) HBr, benzoyl peroxide (ii) KCN (iii) Na(Hg), $C_{2}H_{5}OH$
Show Hint
In the presence of KCN, alkyl halides undergo nucleophilic substitution to form nitriles, which is a common reaction. The subsequent step does not affect the nitrile in this case.