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Identify a sol from the following.

(a) Stone

(b) Paint

(c) Ink

(d) Rice milk

I have been asked this question in an online quiz.

I need to ask this question from Colloids topic in section Surface Chemistry of Engineering Chemistry II

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Correct choice is (b) Paint

For explanation: Paint is thicker as compared to other liquid fluids. It’s hardness scale is assumed to be 9 on the Mohr’s scale which is next to kerosene. Hence paint is considered to a solid liquid sol.

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