Question

give chemical test to distinguish between saluted and unsoluted hydrocarbon​

Answer 1

Answer:

On adding few drops of bromine water, if brown colour of bromine disappears quickly then the compound is an unsaturated hydrocarbon.

Explanation:

mark me as a brainlist

Answer 2

hydrocarbons burn in air with sooty yellowish flame, because saturated compounds contain less percentage of carbon which easily oxidised completely in air but unsaturated compounds need more oxygen for complete burning which is not present in air.

Unsaturated compounds gives addition reaction with Br

2

water and decolorize it but saturated cmpounds does not give addition reactions. Hence they can distinguish by flame test as well as by bromine water test.

Br

2

water is a brown coloured liquid.

(a) Unsaturated hydrocarbons give addition reaction with Br

2

. So the colour of Br

2

-water gets decolourized.

R−C=C−R+Br

2

→R−BrC−CBr−R

(b) Saturated hydrocarbons do not react with Br

2

-water, so the colour of Br

2

.-water does not get decolourised .