Question 9):

The best way to separate the sand and Sulphur combination is  by:

 

Solution:

Concept: The best way to separate a sand and Sulphur mixture is to dissolve it in CS2 and filter it.

Sulphur powder and sand are collected and dissolved in carbon disulphide.

Sulphur is soluble in carbon disulphide, whereas sand is not.

To get Sulphur, filter the solution and evaporate it. On filter paper, sand is dried.