Which of the following is a characteristic of a multi-molecular colloid?(a) Large number of molecules combine to form a particle of colloidal size(b) A large number of atoms aggregate to form a particle of colloidal size(c) Starch solution is an example of multi-molecular colloid(d) Multi-molecular colloids are normally of the lyophilic typeThis question was addressed to me in my homework.The doubt is from Surface Chemistry in division Surface Chemistry of Chemistry – Class 12

Which of the following is a characteristic of a multi-molecular colloi

1.	Which of the following is a characteristic of a multi-molecular colloid?(a) Large number of molecules combine to form a particle of colloidal size(b) A large number of atoms aggregate to form a particle of colloidal size(c) Starch solution is an example of multi-molecular colloid(d) Multi-molecular colloids are normally of the lyophilic typeThis question was addressed to me in my homework.The doubt is from Surface Chemistry in division Surface Chemistry of Chemistry – Class 12
Answer» Correct choice is (b) A large number of atoms AGGREGATE to form a particle of colloidal size To elaborate: In this type of colloidal solution, a large number of atoms or SMALL molecules aggregate to form a particle of colloidal size, these are normally of LYOPHOBIC type. Starch solution is an EXAMPLE of lyophilic colloids and hence is not an example for multi-molecular colloids.

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