Question

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

Answer 1

(a) Ethene to 1, 2-Dibromoethane.
When bromine gas is passed through an inert solvent like CCl₄ containing ethene, we get 1,2-dibromoethane.



(b) Ethene to Bromoethane
The reaction between ethene and bromic acid (HBr) gives bromoethane.
${\mathrm{C}}_2{\mathrm{H}}_4+\mathrm{HBr}\to {\mathrm{C}}_2{\mathrm{H}}_5\mathrm{Br}$