Q. Which of the following methods is NOT used for preparation of colloids?
निम्नलिखित में से किस विधि का उपयोग कोलाइड की तैयारी के लिए नहीं किया जाता है?
Explanation
Dialysis is a purification method used to remove impurities from colloids, not a method to prepare colloids.
Bredig's arc method and double decomposition are actual preparation methods; peptization converts precipitate into a colloidal solution.
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