The reaction of $1$-chlorobutane with alcoholic $KOH$ yields .....

The increasing order of reduction of alkyl halides with zinc and dil. $HCl$ is:

Which of the following compounds has the highest boiling point?

The rate of $S_N1$ reaction will be faster for which of the following bromides?

The major product formed in the reaction is:

Some alkyl halides undergo substitution whereas some undergo elimination reaction on treatment with bases. Discuss the structural features of alkyl halides with the help of examples which are responsible for this difference.