Give the chemical test to distinguish between
(a) Hexane , `MeCH=CHCl `,
Propylchloride , and `CH_(2)=CHCH_(2)Cl `
(b) ` CH_(3)Cl`, `CH_(3)Br,` and ` CH_(3)I`

Explanation

To distinguish between the given compounds in the question, we will perform specific chemical tests. Let's break down the solution step by step.

### Part (a): Distinguishing between Hexane, MeCH=CHCl, Propyl Chloride, and CH2=CHCH2Cl

1. **Hexane (C6H14)**:
- **Test**: React with bromine (Br2) in carbon tetrachloride (CCl4).
- **Observation**: No decolorization of bromine water occurs since hexane is a saturated hydrocarbon and does not react with bromine.

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