6.4 Explain: (i) Zone refining (ii) Column chromatography.
6.4 Explain: (i) Zone refining (ii) Column chromatography.
Zone refining method is based on the principle that impurities are more soluble in the molten state of metal (the melt) than in the solid state. The impure metal is heated with the help of a circular mobile heater at one end. This results in the formation of the molten zone or melt. As the heater is
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Chemistry Ncert Solutions Class 12th 2023
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