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Question

Mixture of sulphur and carbon disulphide is

a. homogeneous and does not show Tyndall effect

b. Heterogeneous and show Tyndall effect

Your answer to same question in the question bank option is a but explanation is of d

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Solution

The answer is (b).
A mixture of sulphur and carbon disulphide is a heterogeneous colloid and shows Tyndall effect. In a colloidal solution, the particles are big enough to scatter light.
The scattering of light by colloidal particles is known as Tyndall effect. Colloids are actually heterogeneous in nature though they appear to be homogeneous.

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