### Haloalkanes and Haloarenes

goals
Identity the compound 'D' in the following series of reactions.
$CH_{3}-CH_{2}-Br \overset{alc. KOH}{\rightarrow} 'A' \overset{Cl_{2}/CCI_{4}}{\rightarrow} 'B' \overset{NaNH_{2}}{\rightarrow} 'C' \xrightarrow[1percentHgSO4]{40percentH2SO4} 'D'$
The reaction of one molecule of $HBr$ with one molecule of $1,3-$butadiene at ${40}^{o}C$ gives predominantly:
The major product formed in the following reaction is:
The major product(s) obtained in the following reaction is/are.
The number of possible organobromine compounds which can be obtained in the allylic bromination of $1$-butane with N-bromosuccinimide is ________.