Arsenic sulfide is a negatively charged sol. Which of the following reagents has the lowest coagulating power for it?

Nanomaterials are $NOT$ typically applied in which of the following fields?

Which of the following is not an emulsion?

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.

Identify the correct statements from the following :
$I$. Sulphur sol is an example of a multimolecular colloid.
$II$. Tyndall effect is observed when the diameter of the dispersed particles is not much smaller than the wavelength of the light used.
$III$. The process of removing a dissolved substance from a colloidal solution by means of diffusion through a suitable membrane is called peptisation.
$IV$. Eosin,gelatin are examples of negatively charged sols.

Draw the diagram showing micelle formation by the following detergent.
$CH_3(CH_2)_{10}CH_2OSO_3^-Na^{+}$