Is Matter Aroun...

Liquid-liquid mixtures can be seperated by :

Name the change of state in which naphthalene changes into vapour:

How would you obtain pure ammonium chloride when it contains potassium chloride as an impurity?

Method used to separate Petrol from crude oil is:

Name a technique used to separate : Petrol and water

Pure iodine can be obtained by the process of ______________ .

Benzene and water can be separated by _____________ .

Ammonium chloride is separated from a mixture of sodium chloride and ammonium chloride by the process of _____________.

Which of the following is not colloid?

A teacher instructed four students $$A, B, C$$ and $$D$$ to prepare a suspension of chalk in water. The students prepared suspension in the following manner:
Student $$'A'$$ places a piece of chalk in water.
Student $$'B'$$ places powdered chalk in water.
Student $$'C'$$ places powdered chalk in water and then shakes the mixture vigorously.
Student $$'D'$$ places powdered chalk in dil. $$HCl$$.