How will you bring about the following conversions :
(i) Ethanol to acetone
(ii) Benzene to acetophenone
(iii) Benzoic acid to benzaldehyde.

Explanation

To solve the conversions step by step, we will break down each conversion process clearly.

### (i) Conversion of Ethanol to Acetone

1. **Oxidation of Ethanol**:
- Ethanol (C2H5OH) is oxidized using potassium dichromate (K2Cr2O7) in an acidic medium.
- This reaction converts ethanol to acetic acid (CH3COOH).
- **Reaction**:
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