In the depicted figure, the relationship between the vapor pressure of liquid L and the mole fraction of M in a solution is illustrated for a solution composed of liquids L and M. Here, $X_L$ and $X_M$ represent the mole fractions of L and M, respectively, in the solution. The appropriate statement(s) applicable to this system is (are)

 

 

Free energy of mixing of two liquids is positive for all $X_L$ values

The point Z represents vapour pressure of pure liquid M and Raoult’s law is obeyed from $X_L=0$ to $X_L=1.$

The point Z represents vapour pressure of pure liquid L and Raoult’s law is obeyed when $X_L\to 1.$

The point Z represents vapour pressure of pure liquid M and Raoult’s law is obeyed when $X_L\to 0.$