Question

Why colour of bromine water discharges on addition of ethene in it?

Answer 1

Answer. When bromine waters (a solution of bromine in water) having red-brown colour is added to ethene in an inert solvent like car.bon tetrachloride, its colour is discharged at once. Bromine water reacts with ethene in CCU to form ethylene bromide a colorless compound.
                        H2C=CH2 + Br2 → Br-CH2-CH2-Br
This reaction is used to identify the unsaturation of an organic compound.

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