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Which of the following is not an example of lyophobic colloids?

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in Chemistry – Class 12 by (188k points)
Which of the following is not an example of lyophobic colloids?

(a) Gold solution

(b) Sulphur solution

(c) NaCl solution

(d) Blood

I got this question in a national level competition.

Origin of the question is Surface Chemistry topic in chapter Surface Chemistry of Chemistry – Class 12

1 Answer

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Best answer
Right option is (c) NaCl solution

Easy explanation: Gold solution, Sulphur solution and blood are colloids in which the dispersed phase has very low affinity for the dispersion medium and once the dispersed phase and dispersion medium are separated we cannot get the solution directly by remixing the two phases. Therefore they are categorized under lyophobic colloids.

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