Lyophilic sols are:

To resist the coagulation of $100 \ cc$ gold sol, $1 \ cc$ of $10 \% \ NaCl$ is added to it in the presence of $10^{-4} \ g$ gelatin. The gold number of gelatin is:

The coagulation of $200 \ mL$ of a positive colloid took place when $0.73 \ g$ of $HCl$ was added to it without changing the volume much. The flocculation value of $HCl$ for the colloid is

Blood contains

At high concentration of soap in water,soap behaves as a

Which ion has the lowest coagulating power?