How will you convert :
(i) Propanoic acid to Ethanoic acid
(ii) Nitromethane to Dimethylamine

Explanation

To convert propanoic acid to ethanoic acid and nitromethane to dimethylamine, we can follow these step-by-step reactions:

### Part (i): Conversion of Propanoic Acid to Ethanoic Acid

1. **Starting Compound**: Propanoic acid (CH3CH2COOH).
2. **Formation of Acid Chloride**: React propanoic acid with thionyl chloride (SOCl2) to form propanoyl chloride (CH3CH2COCl).
- **Reaction**:
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