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Question
You are provided with a mixture of salt, sand, oil and water. Write the steps involved for the separation of salt, sand and oil from the mixture by giving an activity along with the diagram.
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Solution
We can separate salt, sand, oil and water with the following method -
- Decantation : Because oil floats on water (it is insoluble in water), it is simple to decant.
- Filtration : Filter the mixture to separate the sand from the water (sand is insoluble in water), leaving just the salt solution.
- Evaporation : Salt can be separated from a solution by evaporating it.
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