An ideal solution is prepared from A and B (both are volatile). The composition of the solution is such that the total vapour pressure is harmonic mean of vapour pressures of pure `A(P_(A)^(@))` and pure `B(P_(B)^(@)).[P_(A)^(@) ne P_(B)^(@)]`
If `x_(A), x_(B)` represents mole freaction of A and B in solution respectively and `y_(A) ` and `Y_(B)` represents mole fraction of A and b in vapour phase, then answer the following questions.
If the total vapour pressure is half the value mentioned in the above comprehension, then which of the following must be ture?

Options

A. The composition of this ideal solution can be determined
B. the solution exhibits positive as well as negative of `P_(a)^(@)` and `P_(B)^(@)`
C. `A"…."B` attractions are stronger than `A"….."A` and `B"….."B` interactions.
D. A and B form a maximum boiling point azeotropic mixture.

Answer

C, D