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Question

Which of the followings are not lyophobic in nature?

A
Gelatin
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B
Sulphur
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C
Starch
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D
Protein
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Solution

The correct options are
A Gelatin
C Starch
D Protein
The colloidal solutions in which the particles of the dispersed phase have a great affinity for the dispersion medium are called lyophillic colloids.
Examples include gum, gelatin, starch, proteins, rubber etc.
The colloidal solutions in which there is no affinity between the particles of the dispersed phase and the dispersion medium are called lyophobic colloids.
Examples include the solutions of metals like Ag and Au, hydroxides such as ferric hydroxide , S and metal sulphides like As2S3

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