The molecular mass of a solute cannot be calculated by which of the following?

Options

A. `M_(B) =(W_(B)xxRT)/(piV)`
B. `M_(B) =(p^(@)W_(B) M_(A))/((p^(@) -p) W_(A))`
C. `M_(B) =(Delta T_(b) W_(B) xx 1000)/(K_(b) W_(A))`
D. `M _(B) =(K_(b) W_(B) xx1000)/(Delta T_(b) xxW_(A))`

Answer

C

Explanation

`M_(B) =(Delta T _(b) xx W_(B)xx1000)/(K _(b) xx W_(A))` is wrong. The correct from is `M _(B) =(K_(b)xx W_(B)xx 1000)/(Delta T_(b) xx W_(A))`