Colligative properties i.e., the properties of solution which depend upon the particles present in solution are osmotic pressure, depression in freezing point, elevation in boiling point and relative lowering of vapour pressure. Experimental values of colligative properties for electrolytes are always higher than those obtained theoreticallu. The ratio of experimental colligative properties to theoretical colligative properties is called as van't Hoff factor (i).
If equal volume of `0.01 M Ma OH` is added in the solution of above weak acid solution then what will be new observed osmotic pressure at same temperature? Neglect the hydrolysis, dissociation of water and any volume concentration or expansion. Assume `10%` dissociation of salt formed.

Options

A. `0.246` atm
B. `0.369` atm
C. `0.123` atm
D. `0.492` atm

Answer

A