Identify the dispersed phase and dispersion medium in cheese based on the following table:

	Dispersed Phase	Dispersion medium
$1$	liquid	solid
$2$	liquid	liquid
$3$	solid	liquid
$4$	solid	solid

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.

Gelatin is mostly used in making ice cream in order to

Most suitable salt which can be used for efficient clotting of blood will be :-

On addition of $1 \, mL$ solution of $10\% \, NaCl$ to $10 \, mL$ gold sol in the presence of $0.25 \, g$ of starch,the coagulation is just prevented. What is the gold number of starch?

Which of the following is not correct?