Question

separating technique, camphor from sand?

Answer 1

The sublimation is the best process by which we can separate camphor from sand.

I hope it will help you..,!!

Answer 2

We know that camphor is a sublime substance and sand is not a sublime substance. Thus we can separate camphor from sand by heating the mixture slowly. The vapours of camphor should be then collected and cooled down.
We would observe that solid camphor crystals will form.
This process is also called sublimation.