How will you distinguish between the following pairs of alcohols by a chemical test?
`CH_(3)(CH_(2))_(3)OH and CH_(3)CH=CH-CH_(2)OH`

Explanation

To distinguish between the two alcohols, CH₃(CH₂)₃OH (n-butyl alcohol) and CH₃CH=CH-CH₂OH (allylic alcohol), we can use a chemical test involving bromine water. Here’s the step-by-step solution:

### Step 1: Identify the Structures
- **n-butyl alcohol (CH₃(CH₂)₃OH)**: This is a saturated alcohol with no double bonds.
- **Allylic alcohol (CH₃CH=CH-CH₂OH)**: This alcohol contains a double bond adjacent to the hydroxyl (-OH) group.

### Step 2: Choose the Chemical Test
- We will use **bromine water (Br₂ in water)** as our chemical test. This reagent is commonly used to test for the presence of double bonds (unsaturation) in organic compounds.
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