Question

How would you convert:
(a) Ethene into 1, 2 - dibromoethane.
(b) Ethene to bromoethane

Answer 1

(a) Ethene into1,2- Dibromoethene:

when bromine gas is passed into inert solvent like CCI₄ Containing dissolved ethene at room temperature, one molecule of Br₂ adds across the double bond togive ethylene dibromide.

\[\ce{CH2 = CH2 + Br -> CH2Br - CH2Br}\]

(b) Ethene to bromoethane:

Ethene reacts with halogen acids to form alkyl halidies.

\[\ce{CH2 = CH2 + HBr -> CH3 - Ch2Br}\]