Ethanol on reaction will alkaline `KMnO_(4)` gives:

Options

A. Ethanal
B. Glyoxal
C. Acetic acid
D. Acrolein

Answer

To solve the question regarding the reaction of ethanol with alkaline potassium permanganate (KMnO₄), we will follow these steps:

### Step-by-Step Solution:

1. **Identify the Reactants**:
- The reactant in this case is ethanol, which has the chemical formula \( \text{C}_2\text{H}_5\text{OH} \) or \( \text{CH}_3\text{CH}_2\text{OH} \).

2. **Understand the Role of KMnO₄**:
- Potassium permanganate (KMnO₄) is a strong oxidizing agent, especially in alkaline conditions. It is known for its ability to oxidize alcohols.

3. **Reaction Conditions**:
- The reaction is conducted in an alkaline medium, which enhances the oxidizing capability of KMnO₄.

4. **Oxidation of Ethanol**:
- When ethanol is treated with alkaline KMnO₄, it undergoes oxidation. Ethanol (an alcohol) is oxidized to acetic acid (ethanoic acid), which has the formula \( \text{CH}_3\text{COOH} \).

5. **Observation During the Reaction**:
- Initially, the KMnO₄ solution has a pink color due to the presence of MnO₄⁻ ions. As the reaction proceeds, the pink color disappears, indicating that the KMnO₄ is being reduced as it oxidizes ethanol.

6. **Final Product**:
- The final product of the reaction is acetic acid, which is the result of the oxidation of ethanol.

### Conclusion:
- Therefore, the reaction of ethanol with alkaline KMnO₄ produces acetic acid.

### Answer:
Ethanol on reaction with alkaline KMnO₄ gives acetic acid (CH₃COOH).

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