Explain why particles of a colloidal solution do not settle down when left undisturbed, while in the case of a suspension, they do.
ScienceClass 9CBSEAnswered 27 Mar 2026
Answer
Solution:
The size of the particles in suspension is relatively larger than the size of the particles in a solution. Moreover, in suspension, molecular interaction is weaker to keep the molecules in suspended form. Hence the particles settle down. Similarly, in colloidal solution, molecular interaction is strong hence they remain in suspended form.
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