Saved Bookmarks
| 1. |
Write principle behind the following : (i) Vapour phase refining (ii) Chromatography (iii) Froth flatation process. |
|
Answer» (i) The metal is converted into a volatile compound leaving non-volatile impurities behind. The volatile compound is then decomposed to give pure metal. (ii) The different constituents in a mixed ore are adsorbed to different extent on the surface of the adsorbent. (iii) Mineral particles are wetted by oil and gangue particles by water. |
|