Q26 of 252 Page 80

How will you test whether a given solution is a colloidal solution?

We can distinguish between colloids and true solutions by using Tindall effect. If the solution scatters a beam of light passing through it and renders its path visible, will be a colloid.


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24

In what respects does a true solution differ from a colloidal solution?

 25

Classify the following into true solutions and colloidal solutions:

Ink, Salt solution, Starch solution, Blood, Sugar solution

 27

Explain what happens when a beam of light is passed through a colloidal solution.

 28

How will you distinguish a colloid from a solution?