Preparation of Colloids

Which method is used to prepare colloids?

${\mathrm{As}}_2{\mathrm{O}}_3+3{\mathrm{H}}_2\mathrm{S}\to {\mathrm{As}}_2{\mathrm{S}}_3\left(\mathrm{sol}\right)+3{\mathrm{H}}_2\mathrm{O}$

Silicic acid Sol is obtained by the hydrolysis of _____.

The _____ method is used for the preparation $\mathrm{Fe}{\left(\mathrm{OH}\right)}_3$ Sol.

How does the colloidal solution of ferric chloride prepared?

Bredig's arc method cannot be used for the preparation of the colloidal solution of

Purple of Cassius is

A freshly prepared $\mathrm{Fe}(\mathrm{OH}{)}_3$ precipitate is peptised by adding ${\mathrm{FeCl}}_3$ solution. The charge on the colloidal particle is due to preferential adsorption of

The precipitate of $\mathrm{F}\mathrm{e}{\left(\mathrm{O}\mathrm{H}\right)}_3$ in presence of water containing some ${\mathrm{F}\mathrm{e}\mathrm{C}\mathrm{l}}_3$ becomes colloidal on gentle shaking. This is an example of

Which of the following statements are incorrect regarding mechanical disintegration?

Freshly prepared precipitate sometimes gets converted to colloidal solution by :-

Colloidal solution of silver is prepared by:

Which of the following option show correct matches:

Colloidal solution of gold is prepared by

Which of the following method is used to prepare the violet gold solution ?

Which of the following method is used to prepare the colloidal particles by grinding of bigger particles in colloidal mill ?

Which of the following is not a dispersion method of preparation of colloids$?$

On hydrolysis, ferric chloride gives a deep red sol of iron $\left(\mathrm{II}\right)$ hydroxide.

Which method is used to prepare the colloidal dispersion of sulphur by the action of nitric acid on ${\mathrm{H}}_2\mathrm{S} ?$

When freshly precipitated $\mathrm{Fe}(\mathrm{OH}{)}_3$ is shaken with an aqueous solution of ${\mathrm{FeCl}}_3,$ a colloidal solution is formed. This process is known as :

 Which of following statement is incorrect?