A reagent used to test for unsaturation of alkene is
Answer»
Conc. `H_2SO_4` Ammoniacal `Cu_2Cl_2` Ammoniacal `AgNO_3` Solution of `Br_2` in `C Cl_4`
Solution :Solution of BROMINE in CARBONTETRACHLORIDE 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)`