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Question


Arrange the following in the decreaing order of their particle size:
suspension, true solution and colloids


Options:
A .   Suspension > Colloidal > True solution
B .   Suspension > True solution > Colloidal
C .   True solution > Suspension > Colloidal 
D .   True solution > Colloidal > Suspension
Answer: Option A
:
A
A true solution is a homogeneous mixture. So, the particles will be completely dissolved.
Suspension and colloidal solutions are heterogeneous mixtures. The particles in colloidal solutions are relatively smaller than suspensions. However, the particles of a suspension can be seen with the naked eye, as opposed to a colloid.
Hence, the size of particles in suspension, true solution and colloidal solution varies in the order: Suspension > Colloid > True solution.

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