In lyophilic sols,the attraction of sol particles towards the medium is due to:

The ability of an ion to bring about coagulation of a given colloid depends upon

If some gelatin is mixed in a colloidal solution of gold,then it does:

$A$ colloidal solution is subjected to an electrical field. The particles move towards the anode. The coagulation of the same sol is studied using $NaCl$,$BaCl_2$,and $AlCl_3$ solutions. Their coagulating power should be:

The arsenious sulfide sol is negatively charged. Which of the following will have the highest coagulating power for its precipitation?

The concentration of electrolyte required to coagulate a given amount of $As_2S_3$ sol is minimum in the case of