Which mixture is correctly paired with a method for separation of the mixture?

Oil and water - filter paper

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Salt water - crystallisation

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Sand and water - funnel

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Sand and sugar - tweezers

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Iron and sand - filter paper

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Solution

The correct option is D Salt water - crystallisation
Salt can be separated from salt and water mixture by crystallisation, which involves heating the mixture and then letting it cool. Pure salt crystallises out.

Oil and water need to be separated by using a separating funnel. Sand and water can be separated by filtration. Sand and sugar need more than two methods of separation. Iron and sand can be separated using magnetic separation.

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