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Which sol can be prepared directly by mixing the dispersed phase with dispersion medium?

1. Lyophobic sol
2. Lyophilic sol
3. Both
4. None

Correct answer: Lyophilic sol

Solution

Lyophilic sols are easy to prepare because the dispersed phase has a natural attraction for the dispersion medium, so simple mixing is enough. Lyophobic sols usually require special methods like dispersion or condensation.

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