Question

a hydrocarbon C2H4 decolourise bromine water.
(a). Name the hydrocarbon
(b). Mention the family to which it belongs.
(c). write down its reaction with bromine water.
(d). write its chemical reaction with H2O.
(e). Name a polymer of this compound which is extensively used in daily life.

Answer 1

Ethene
CnH2n
C2H4+Br—)C2Br4

Answer 2

it is etheneit belongs to alkenes.C2H4+ H2 = C2 H6  (Ethane)