Answer: The correct answer is option (A).
Explanation:
In solution, size of the particles smaller than 1 nano meter which are not visible to the eyes.
In the suspension, size of particles are larger than the 1000 nano-meter which can be seen with the help of eyes.
In colloidal solution, size of the particles ranges from 1 nano-meter to 1 micrometer, which are not visible to eyes.
So, the order is :
[tex]Solution<Colloid<Suspension[/tex]
