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Which of the following colloidal system represents a gel?

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in Chemistry – Class 12 by (188k points)
Which of the following colloidal system represents a gel?

(a) Solid in liquid

(b) Solid in gas

(c) Liquid in solid

(d) Liquid in gas

This question was posed to me during an online interview.

This key question is from Surface Chemistry in portion Surface Chemistry of Chemistry – Class 12

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Correct choice is (c) Liquid in solid

For explanation I would say: A gel is a colloidal system in which the dispersed phase is a liquid and the dispersion medium is a solid. Toothpaste, jam, cheese, rubber and gelatin (animal protein) are some of the examples of colloidal systems which are gels.

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