When some amount of non-volatile solute is dissolved in a solvent to prepare a dilute solution, the vapour pressure of the solvent is lowered and it is directly proportional to the mole fraction of solvent in the solution . Relative lowering in vapour pressure is equal to mole fraction of solute .
Elevation in boiling point of solvent is a collgative property like lowering in vaour pressure of solvent in solution , `K_(b)` i.e., molal elevation constant is calculated by the formula, `K_(b)=DeltaT_(b)//` molality and also by the expression, `K_(b)=RT_(b)^(2)//1000l_(v)` where `T_(b)` is boiling point of solvent and `I_(v)` is latent heat of vapourisation for 1 gm solvent . Abnormal elevation is boiling point =iX elevation in boiling point in ideal solution where i=van't Hoff factor
Which of the following relation /statements is correct?

Options

A. For solute showing associative nature, Exptl M. wt . `lt` Normal M.wt.
B. For solutes showing associative nature , `DeltaP` (exptl) `lt DeltaP` (calculated )
C. For solutes showing dissociated nature, Exptl M. wt. `gt` Normal M.wt.
D. For soluteds showing dissociated nature , `Delta T_(b)` (exptl) `lt DeltaT_(b)` (calculated)

Answer

b