Which one of the following impurities present in colloidal solution ca – InterviewSolution

1.	Which one of the following impurities present in colloidal solution cannot be removed by electrodialysis?
Answer» SODIUM chloride Potassium SULPHATE Urea CALCIUM chloride SOLUTION :Electrodialysisinvolvesmovementofionstowardsoppositelychargedelectrodes. Ureabeingacovalentcompounddoes notdissociatetogiveionsand hence itcannotberemovedby ELECTRODIALYSIS. Howeverallthe other given compoundsareionicwhichcanundergodissociation to giveoppositelychargedionsandthuscanbeseparated.

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