Question:
Multimolecular colloids are present in:
Multimolecular colloids are present in:
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Multimolecular colloids form when small molecules aggregate to form larger clusters, such as in the sol of gold.
Updated On: Apr 22, 2026
- Soap solution
- Sol of proteins
- Sol of gold
- All of these
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The Correct Option is C
Solution and Explanation
Step 1: Understanding multimolecular colloids.
Multimolecular colloids consist of aggregates of molecules that are small enough to remain in suspension, and their size is typically between 1 nm and 1000 nm.
Step 2: Explanation of the options.
- (1) Soap solution: Soap solutions contain micelles, which are not multimolecular colloids.
- (2) Sol of proteins: Proteins are macromolecules and generally form macromolecular colloids, not multimolecular.
- (3) Sol of gold: Gold nanoparticles in sol are an example of multimolecular colloids, where gold atoms aggregate.
- (4) All of these: This is incorrect because soap solutions and sol of proteins are not multimolecular colloids.
Step 3: Conclusion.
The correct answer is (3) Sol of gold.
Multimolecular colloids consist of aggregates of molecules that are small enough to remain in suspension, and their size is typically between 1 nm and 1000 nm.
Step 2: Explanation of the options.
- (1) Soap solution: Soap solutions contain micelles, which are not multimolecular colloids.
- (2) Sol of proteins: Proteins are macromolecules and generally form macromolecular colloids, not multimolecular.
- (3) Sol of gold: Gold nanoparticles in sol are an example of multimolecular colloids, where gold atoms aggregate.
- (4) All of these: This is incorrect because soap solutions and sol of proteins are not multimolecular colloids.
Step 3: Conclusion.
The correct answer is (3) Sol of gold.
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