Which of the following alcohols gives a red colour in victor meyer test :-

Options

A. `C_(2)H_(5)OH`
B. `CH_(3)-CH(OH)-CH_(3)`
C. `C(CH_(3))_(3)OH`
D. None of the above

Answer

To determine which of the following alcohols gives a red color in Victor Meyer's test, we need to understand the test's procedure and the behavior of different types of alcohols.

### Step-by-Step Solution:

1. **Understanding Victor Meyer’s Test**:
- Victor Meyer’s test is a qualitative test used to differentiate between primary, secondary, and tertiary alcohols based on the color produced after a series of reactions.
- The test involves three main steps:
- **Step 1**: The alcohol is treated with red phosphorus and iodine to form an alkyl iodide.
- **Step 2**: The alkyl iodide is then treated with silver nitrite (AgNO2) to produce a nitroalkane.
- **Step 3**: The nitroalkane is treated with nitrous acid (HNO2) and the solution is made alkaline. The color produced indicates the type of alcohol:
- **Red color** indicates a primary alcohol.
- **Blue color** indicates a secondary alcohol.
- **Colorless solution** indicates a tertiary alcohol.

2. **Analyzing the Given Alcohols**:
- **Option 1: Ethanol (C2H5OH)**:
- Ethanol is a primary alcohol. According to Victor Meyer’s test, it will give a red color.
- **Option 2: Isopropanol (CH3CHOHCH3)**:
- Isopropanol is a secondary alcohol. It will give a blue color in the test.
- **Option 3: Tert-butanol (C(CH3)3OH)**:
- Tert-butanol is a tertiary alcohol. It will produce a colorless solution.
- **Option 4: None of these**:
- This option suggests that none of the alcohols listed would give a red color, which is incorrect since ethanol does.

3. **Conclusion**:
- Based on the analysis, the only alcohol that gives a red color in Victor Meyer’s test is **Ethanol (C2H5OH)**, which is a primary alcohol.

### Final Answer:
**Ethanol (C2H5OH) gives a red color in Victor Meyer’s test.**

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