When a sulphur sol is evaporated,sulphur is obtained. On mixing with water,the sulphur sol is not formed. The sol is

Give information about examples of colloids.

Match the following List-$I$ (Dispersed Phase - Dispersion medium) with List-$II$ (Type of colloid):
| List-$I$ | List-$II$ |
| :--- | :--- |
| $(A)$ Solid - Liquid | $(I)$ Gel |
| $(B)$ Liquid - Liquid | $(II)$ Aerosol |
| $(C)$ Solid - Gas | $(III)$ Sol |
| $(D)$ Liquid - Solid | $(IV)$ Emulsion |

Which is $NOT$ an example of a macromolecular colloid?

The minimum concentration of an electrolyte in $mol \ L^{-1}$ required to cause coagulation or precipitation of a sol is known as:

The correct statements with respect to dialysis of colloidal solution are
$I$. Colloidal particles can pass through the membrane.
$II$. Animal bladder can be used as membrane.
$III$. Cellophane is not used as membrane.
$IV$. Ions or small molecules can diffuse through membrane into water.