Answer :

(i) The colligative property which is used to find the molecular mass of macromolecules is osmotic pressure.

π = cRT

where π = osmotic pressure

c = concentration

R = gas constant

T = Temperature

By the above formula, we can calculate the molecular mass of macromolecules.

(ii) In non-ideal solution, positive deviation shows the formation of minimum boiling azeotropes.

Note: The type of liquid mixture, having a definite composition, and boiling like a pure liquid, is called an azeotropic mixture

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