Which of the following impurities can be sepa | vedclass

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(B) Electrodialysis is a process used to purify colloidal solutions by removing ionic impurities using an electric field. $(B)$ Alum is an electrolyte

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Alum

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(B) Electrodialysis is a process used to purify colloidal solutions by removing ionic impurities using an electric field. $(B)$ Alum is an electrolyte that dissociates into $Al^{3+}$ and $SO_4^{2-}$ ions in an aqueous solution. Since these ions are electrolytes,they can be separated from the colloidal particles using electrodialysis,whereas substances like alcohol,sugar,and urea are non-electrolytes and cannot be separated by this method.

Which of the following impurities can be separated from a colloidal solution by electrodialysis?

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