Give an example of a solid sol in which the dispersed phase is solid.

Which one of the following is most effective in causing the coagulation of an $As_2S_3$ sol?

Which is an incorrect statement?

Equal volumes of two $AgI$ sols are mixed together. The first sol is obtained by adding $AgNO_3$ to a slight excess of $KI$,and the second sol is obtained by adding $KI$ to a slight excess of $AgNO_3$. What happens when they are mixed?

Which ion has the lowest coagulating power?

When freshly precipitated $Fe(OH)_3$ is shaken with an aqueous solution of $FeCl_3$,a colloidal solution is formed. This process is known as