Question

Multimolecular colloids are present in:

• A. sol of sulphur
• B. sol of protein
• C. sol of gold
• D. soap solution

Answer 1

Answer: (A), (C)

The correct options are
A sol of sulphur
C sol of gold

When a large number of small particles (dispersion phase) aggregate to form a large size molecule or particle having the size in the colloidal range, it known as Multimolecular colloids. Here, the atoms or particles are held together by weak van der Waals force of attraction. For example, gold sol contains particles of various sizes having several atoms. Another example is sulfur solution.
Sol of protein are present in macro molecular colloids and soap solution is present in associated colloids.
Hence, options A and C are correct options.