Which of the following will show the Tyndall effect? (i) An aqueous solution of soap below critical micelle concentration. (ii) An aqueous solution of soap above critical micelle concentration. (iii) An aqueous solution of sodium chloride. (iv) An aqueous solution of sugar.
Option 2) Aqueous solution below critical micelle concentration is not a colloid solution whereas aqueous solution of soap above critical micelle concentration is a colloidal solution. Therefore, tyndall effect will be shown by soap solution above critical micelle concentration.
