$A$ colloidal solution is subjected to an electric field,and the colloidal particles move towards the anode. The amount of electrolytes $BaCl_{2}$,$AlCl_{3}$,and $NaCl$ required to coagulate the given colloid is in the order:

Which of the following is not a correct match for an emulsion?

What is the coagulating power of an effective ion carrying a charge opposite to that of the sol particles called?

Which of the following is a characteristic of a lyophilic colloid?

$A$ negatively charged suspension of clay in water will need for precipitation the minimum amount of

Consider the following statements about the Tyndall effect:
$(I)$ It is used to distinguish between a true solution and a colloidal solution.
$(II)$ It is possible only when the refractive indices of the dispersed phase and the dispersion medium differ significantly.
$(III)$ It is observed only when the size of the colloidal particles is much smaller than the wavelength of the light used.
Which of the following statements are correct?