What happens when:
(i). Ethyl chloride is treated with NaI in the presence of acetone
(ii). Chlorobenzene is treated with Na metal in the presence of dry ether
(iii). Methyl chloride is treated with `KNO_(2)`.
Write chemical equation in support of your answer.

Explanation

To solve the question, we will analyze each part step by step and provide the corresponding chemical equations.

### (i) Ethyl chloride is treated with NaI in the presence of acetone.

**Step 1:** Identify the reactants.
- Ethyl chloride (C₂H₅Cl) is the alkyl halide.
- Sodium iodide (NaI) is the halide source.
- Acetone is the solvent.
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