Tyndall effect is more effectively shown by :

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Suspension

Lyophobic colloid

True solution

Lyophilic colloid

answer is B.

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Detailed Solution

Tyndall effect is the term used to describe how colloidal particles scatter light.
The difference in refractive indices between the dispersed phase and the dispersion medium determines the intensity of the scattered light.
The intensity of the scattered light will increase with the size of the discrepancy.
The particles are less solvated in lyophobic sols than they are in lyophilic sols.

Therefore, in lyophobic sols, the difference in refractive index between the particles and the medium is quite large.

Therefore, in lyophobic sols, the Tyndall effect is more noticeable.

Hence the correct option is (B).

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