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Difine ultrafiltration.

Answer» In this process, colloidal solutions are purified by carrying out filtration throuh special types of graded filters called ultra-filters. Filter paper allows the passage of electrolyte but does not allow the passage of colloidal particles. In this process, colloidal solutions are purified by carrying out filtration throuh special types of graded filters called ultra-filters. Filter paper allows the passage of electrolyte but does not allow the passage of colloidal particles.


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