A) Ammoniacal \[AgN{{O}_{3}}\]
B) Concentrated \[{{H}_{2}}S{{O}_{4}}\]
C) Ammoniacal\[C{{u}_{2}}C{{l}_{2}}\]
D) Solution of \[B{{r}_{2}}\]in \[CC{{l}_{4}}\]
Correct Answer: D
Solution :
Solution of bromine in carbon tetra chloride is used to test for unsaturation of alkene. Here, red colour of bromine disappears due to the formation of colorless dibromo ethane \[({{C}_{2}}{{H}_{4}}B{{r}_{2}}).\] Hence, the correct option is (d).
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