Which of the following will show Tyndall effect

Which of the following will show the “Tyndall effect”?

Water vapors in the air act as a colloidal system and scatter light

(a) Salt solution
(b) Milk
(c) Copper sulfate solution
(d) Starch solution.

Answer:

When a beam of light travel from a colloidal mixture. Particles of colloid scatter the light. We call this scattering of light as a Tyndall effect.

A salt and copper sulfate solution is a homogenous mixture. Milk and starch, solutions form a colloidal solution. As a result salt and copper sulfate solution does not show the Tyndall effect. While milk and starch, the solution shows a Tyndall effect.

Next: Question 10: Classify the following into elements, compounds and mixtures.

See also: Question 8: Identify the solutions among the following mixtures.

Ref: Chapter 2.

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