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| 1. |
Explain a test for unsaturation. |
| Answer» Solution :HALOGENS like `Cl_(2)` or `Br_(2)` react with alkenes in the presence of inert solvent like `"CCl"_(4)` to form dihaloalkanes.`R - CH = CH_(2)+ Br_(2) overset("CCl"_(4))(rarr)R " "- underset("dibromoalkane")(underset(BR)underset(|)(CH)- underset(Br)underset(|)(CH_(2)))` | |