Compreshension-II
In non-ideal solutions, at one of the intermediate compostions, the total vapour pressure is highest and the boiling point is lowest. At this point, the composition of the liquid and vapour phase is same. So, if liquid mixture vapouriese at this point and vapours are condensed, teh condensate contains same compositon as present in original liquid mixture. it means at this point liquid behaves like a pure liquid and is called an Azeotropic mixture.
Choose the correct answer :
A. Ideal solutions cannot be separated into their components by fractional distillation
B. For ideal solutions enthalpy of mixing is always greater than zero
C. Only non-ideal solution showing positive deviation cannot be separated out by fraction distillation
D. Non-ideal solution showing both positive and negative deviation cannot be separated out by fractional distillation
