Addition of 10 gram of non volatile  substance in 100 gram $CC{l}_4$ (mol. Wt -154) increases the boiling point of $CC{l}_4$ by ${0.6}^{0}C.$ If $K_b$ and $K_f$ of $CC{l}_4$ are 5 K kg $mo{l}^{-1}$ and 32 K kg $mo{l}^{-1}$ respectively, then select the correct statement of the following:

mol.wt of substance  = 833.33 g $mo{l}^{-1}$

depression in freezing point of the solution is ${3.84}^{0}C$

relative lowering of V.P is approximately equal to 0.018

Osmotic pressure of the solution at 300 K is 2.95 atm if molality in assumed to be equal to molarity