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. ​

Answer 1

A mixture of salt, sand, oil and water can be separated by using these steps-​

i) Decantation- Oil floats on water (oil is insoluble in water), so it can be decanted easily.​​

ii) Filtration- The mixture is filtered easily, and sand is separated from the water (as it is insoluble in water), and only salt solution will be left.​

iii) Evaporation- The water in the salt solution can be evaporated, and by this, the salt can be separated out.​