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Which of the following will show the Tyndall effect?
(i) Aqueous solution of soap below critical micelle concentration.
(ii) Aqueous solution of soap above critical micelle concentration.
(iii) Aqueous solution of sodium chloride.
(iv) Aqueous solution of sugar.
Answers (1)
The answer is the option (ii).
Over the critical micelle concentration, an aqueous solution of soap forms a colloidal solution. When light is passed through a colloid, it scatters due to its interaction with the particles. This effect is known as the Tyndall effect.
View full answer
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