Gujarat BoardEnglish MediumSTD 12 ScienceChemistrySurface Chemistry1 Mark
Question
What is electrodialysis?
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Answer
It is a process by which colloidal solutions containing ionic impurities are purified. The colloidal solution containing ionic impurities is placed in a bag of parchment paper in distilled water in electric field. The ions come out through parchment paper and the sol is purified.
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