Explain:
(i). Zone refining
(ii). Column chromatography.

Explain (ii) Column chromatography.

Write short notes on : (i) Zone refining (ii) Column chromatography

Explain Column chromatography.

Explain Column chromatography

Explain: Column chromatography.

Write the principles of the following methods: (i) Vapour phase refining (ii) Zone refining (iii) Chromatography

Explain zone refining of metals.

Explain the following : a) Column chromatography