The vapor pressures of benzenen, toluene and `a` xylene are `75` Torr, `22` Torr and `10` Torr respectively at `20^(@)C` Which of the following is not a possible value of the vapor pressure of an equimolar binarytemary solution of these at `20^(@)C`? Assume all form ideal solution with each other?

Options

A. `48(1)/(2)`
B. 16
C. `35(2)/(3)`
D. `53(1)/(2)`

Answer

D

Explanation

Possible vapor pressures are
`(75+22)/(2),(75+10)/(2),(22+10)/(2) "and" (75+22+10)/(2)=48(1)/(2),42(1)/(2),16,35(2)/(3)`.