The gold numbers of protective colloids $A, B, C,$ and $D$ are $0.50, 0.01, 0.10,$ and $0.005$ respectively. The correct order of their protective power is:

$A$ $10^{-3} \ M$ solution of detergent $(C_{12}H_{25}SO_4^-Na^+)$ forms a colloidal sol. In $1 \ mm^3$ of the solution,there are on average $10^{13}$ colloidal particles. How many ions are present in one colloidal particle (micelle)? $(N_A = 6 \times 10^{23})$

The greater the valence of the flocculating ion added,the greater is its power to cause precipitation of a colloid. This rule is

Which of the following electrolytes will have maximum coagulating value for $AgI / Ag^{+}$ sol?

Which of the following colloids are formed when hydrogen sulphide gas is passed through a cold solution of arsenious oxide?

The precipitation power of an electrolyte increases with: