Question

Ethylene from ethyl bromide is obtained by
treating it with
(a) hydrogen
(b) alcoholic caustic potash
(c) aqueous caustic potash
(d) aqueous caustic soda

Answer 1

Ethylene from ethyl bromide is obtained by  treating it with (a) hydrogen.

Explanation:

• When ethene/ethylene reacts with hydrogen bromide, then bromide is attached to ethene/ethylene to form ethyl bromide (CH₃CH₂ - Br).
• It is an addition reaction.
• The chemical equation of the reaction is given below:

CH₂ = CH₂ + HBr → CH₃CH₂ - Br + HBr

• Ethyl bromide is haloalkanes group. It is a volatile compound.

Answer 2

Answer:

C2H5Br + KOH ------CH2 = CH2 + KBr + H2O