The migration of dispersion medium under the influence of an electric potential is called

Which of the following is lyophobic in nature?

The coagulation of $200 \ mL$ of a positive colloid took place when $0.73 \ g$ of $HCl$ was added to it. The flocculation value of $HCl$ for the colloid is

The following data is obtained for coagulating a positively charged sol in $2$ hours:

Conc. of $Cl^{-}$ in $mol \cdot L^{-1}$	Result
$5 \times 10^{-5}$	Sol not precipitated
$6 \times 10^{-5}$	Sol not precipitated
$7 \times 10^{-5}$	Sol precipitated
$8 \times 10^{-5}$	Sol precipitated
$1 \times 10^{-4}$	Sol precipitated

What is the coagulating value of electrolyte for this sol?

What is the cause of the stability of lyophilic colloids?

The coagulation of $100 \, mL$ of a colloidal sol of gold is completely prevented by the addition of $0.25 \, g$ of a substance '$X$' to it before adding $10 \, mL$ of $1 \% \ NaCl$ solution. The gold number of '$X$' is: