Solve this:
Q. Total vapour pressure of mixture of 1 mol X ($P_X^{°}$= 150 torr) and 2 mol Y ($P_Y^{°}$ = 300 torr) is 240 torr. In this case :-
(1) There is a neagative deviation from Raoult's law
(2) There is a positive deviation from Raoult's law
(3) There is no deviation from Raoult's law
(4) Can not be decided