Assertion :Colloidal solutions are purified by dialysis. Reason: In the process of dialysis, colloidal particles pass through parchment paper.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Assertion is incorrect but Reason is correct

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Solution

The correct option is C Assertion is correct but Reason is incorrect
We know that colloidal particles cannot be passed through parchment paper. This property is used in dialysis. The colloidal solution kept in parchment bag is dipped in beaker containing water, so that impurities may pass into aqueous medium leaving the colloidal particles inside the bag. Hence C is answer.

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