Power alcohol is used in `:`

Options

A. Electricity production
B. As solvent in medicine
C. Energy production
D. All the above

Answer

**Step-by-Step Solution:**

1. **Understanding Power Alcohol:**
- Power alcohol is defined as a mixture of absolute alcohol (ethanol) and petrol (gasoline).
- The typical composition is about 20% absolute alcohol and 80% petrol.

2. **Identifying Uses of Power Alcohol:**
- Power alcohol is primarily used as a fuel in internal combustion engines.
- It is added to petrol to enhance energy production during combustion.

3. **Combustion Properties:**
- Ethanol, being a carbon-containing compound, undergoes combustion, releasing energy.
- The addition of alcohol helps in improving the efficiency of fuel combustion.

4. **Anti-Knocking Properties:**
- Power alcohol has anti-knocking properties, which means it helps prevent premature ignition and detonation in engines.
- This property is crucial for the smooth operation of internal combustion engines, preventing metallic sounds caused by knocking.

5. **Evaluating Options:**
- Option A: Electricity production - Incorrect, as power alcohol is not primarily used for this purpose.
- Option B: Solvent in medicine - Incorrect, power alcohol is not typically used as a solvent in medicine.
- Option C: Energy production - Correct, as power alcohol is used to enhance energy production in vehicles.
- Option D: All of the above - Incorrect, since not all options are valid.

6. **Conclusion:**
- The correct answer is C: Energy production, as power alcohol is primarily used as a fuel to increase energy output in automobiles.

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