Question

How will you separate mixture of sand ,water and mustard oil?

Answer 1

we will place them in a beaker and let the mixture settle down . 
the topmost layer would be of mustard oil , second layer would be of water and the last layer or the heaviest layer would be sand

Answer 2

Answer:

Explanation:

You are given a mixture of sand ,water and mustard oil. Water will settle down at bottom and mustard oil will float on it.

Then open the stopcock of the separating funnel and pour out the lower layer of water. Mustard oil will remain in the separating funnel.