How will you separate a mixture of iron filings, chalk powder and common salt?

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Solution

To separate iron filings you need a magnet. When you will move a bar magnet over the mixture iron filings will be separated. Now you should mix the remaining mixture with water. Salt will get dissolved completely. Now you should filter the mixture and chalk will be separated. Now you should heat the filtered solution till all the water gets evaporated. You will get a common salt.

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