The group reagent for the test of alcohols is :

Options

A. Cerric ammonium nitrate
B. Schiff's reagent
C. Molisch's reagent
D. Bromine water

Answer

**Step-by-Step Solution:**

1. **Identify the Group Reagent for Alcohols:**
- The group reagent used for the test of alcohols is Ceric Ammonium Nitrate (CAN).

2. **Understanding the Reaction:**
- When alcohols (R-OH) react with Ceric Ammonium Nitrate, they form a red-colored complex. The reaction can be represented as:
\[ 2 R-OH + (NH_4)_2[Ce(NO_3)_6] \rightarrow R_2[Ce(NO_3)_4] + 2 NH_4NO_3 \]
- This reaction indicates the presence of alcohols due to the formation of a red solution.

3. **Analyzing the Options:**
- **Option A:** Ceric Ammonium Nitrate - Correct, as it tests for alcohols.
- **Option B:** Schiff's Reagent - Incorrect, used for aldehydes, gives a pink/red color.
- **Option C:** Molisch's Reagent - Incorrect, used for carbohydrates, gives a ring formation.
- **Option D:** Bromine Water - Incorrect, used for unsaturated compounds, decolorizes the solution.

4. **Conclusion:**
- Based on the analysis, the correct answer is **Option A: Ceric Ammonium Nitrate**.

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