How will you separate the following?
Common salt, sulphur, iodine and iron filings.

Explanation

To separate the mixture of common salt, sulphur, iodine, and iron filings, we can follow these steps:

### Step-by-Step Solution:

1. **Magnetic Separation**:
- Use a magnet to attract the iron filings from the mixture. Since iron filings are magnetic, they will stick to the magnet, allowing you to separate them from the other substances.
- **Result**: Iron filings are separated from the mixture.

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