Question

Name the technique used to separate common salt and sand

Answer 1

the technique name is solubility also known as suitable solvent
hope it helps u

Answer 2

we can separate common salt and sand" by using a suitable solvent" example- water.

when we dissolve the solution in water as a solvent the the salt will mixed with the water and sand remains then take out sand from salt water solution....now to obtain salt from water ...provide heat to solution...then water will gets evaporate and salt will remain...