Question

A solution when kept for sometime formed two layers. The solution cannot pass through filter paper. What type of solution is it ? Explain.

Answer 1

If their is the formation of two layers, then we can say that solution is $\textbf{suspension}$.

In such solutions actually the suspended particles settle down at the bottom, which leads to the formation of two different layers.

Since, it's particles size ranges from 10^-5 cm or larger makes it not pass through the filter paper.

Answer 2

if a solution has two different layers than its suspension
suspention when kept undisturbed the particles settle down and cannot pass throudh filter paper