Question

How is bromoethane prepared from ethene?

Answer 1

Bromoethane is prepared from ethene by reacting ethene with hydrogen bromide (HBr). This is an electrophilic addition reaction, where the H and Br atoms add across the double bond of ethene.

\[\ce{\underset{Ethene}{CH2 = CH2} + \underset{bromide}{\underset{Hydrogen}{HBr}} → \underset{Bromoethane}{CH2H5 - Br}}\]