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Which reagent used to test unsaturation ...

Which reagent used to test unsaturation of alkenes ?

A

Conc. `H_2SO_(4)`

B

Ammoniacal `Cu_2 Cl_2`

C

Ammoniacal `AgNO_3`

D

Solution of `Br_2` in C `Cl_4`

Text Solution

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The correct Answer is:
D
Solution of bromine in carbon tetrachloride is used to test for unsaturation of alkene. Red colour of bromine disappears due to the formation of colourless dibromo ethane `(C_2H_4Br_2)`.
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