Question

Given an aqueous solution of NaCl, which of the following is the simplest method for the separation of NaCl from the solution?

1. evaporation of solution to dryness
2. filtration of solution
3. osmosis of solution
4.centrifuging the solution
5. electrolysis of solution

Is it 1. evaporation of solution to dryness?

Answer 1

That is, by far, the simplest.

Answer 2

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