Question

Identify the compound X, Y and Z in the following sequence of reaction.

\[\ce{C2H5Br ->[alc. KOH][]X->[Br2][]Y->[alc. KOH][]Z}\]

Answer 1

\[\ce{C2H5Br ->[alc. KOH][]\mathbf{\underset{\text{ethene}}{CH_2=CH_2}} ->[Br2][]\mathbf{\underset{\text{1,2-dibromoethane}}{CH_2Br-CH_2Br}} ->[alc. KOH][]\mathbf{\underset{\text{ethyne}}{CH≡CH}}}\]