Sugar containing an impurity of common salt can be purified by crystallisation from 

Explain: (1) A mixture of ether and water can be separated by simple distillation. (2) Water present in rectified spirit can be removed by azeotropic distillation. (3) Benzoic acid can be extarced from its aqueous solution using benzene. (4) Sugar containing NaCI as impurity can be purified by crystallisation using ethanol but not water. '

Explain how, impure copper sulphate can be purified by crystallisation.

How is common salt purified ?

Benzoic acid is an organic compound. Its crude sample can be purified by crystallisation from hot water. What characeteristic difference in the properties of benzoic acid and the impurity make this process of purification suitable ?

Benzoic acid is an organic compound. Its crude sample can be purified by crystallisation from hot water. What characeteristic difference in the properties of benzoic acid and the impurity make this process of purification suitable ?

Impure nickel can be purified by

Name a susbtance which can be purified by crystallisation.