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Question
Colloidal solutions are not purified by ______.
Options
dialysis
electrodialysis
electrophoresis
ultrafiltration
MCQ
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Solution
Colloidal solutions are not purified by electrophoresis.
Explanation:
Colloidal solutions are purified by dialysis, electrodialysis, and ultrafiltration, which remove impurity particles by diffusion, electric field-assisted diffusion, and size exclusion, respectively. Electrophoresis, however, is a technique used to separate charged colloidal particles but not for purifying colloidal solutions from impurities. Therefore, electrophoresis is not used for purification of colloidal solutions.
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