AIPMT | 2015Mole ConceptHard
Question
The boiling point of 0.2 mol kg-1 solution of X in water is greater than equimolal solution of Y in water. Which one of the following statements is true in this case ?
Options
A.Molecular mass of X is greater than the molecular mass of Y.
B.Molecular mass of X is less than the molecular mass of Y.
C.Y is undergoing dissociation in water while X undergoes no change
D.X is undergoing dissociation is water
Solution
(ᐃTb)x > (ᐃTb)y
same solvent so, Kb is same m is same (given)
ix. kb. m > iy. kb . m ⇒ ix > iy
so, x is undergoing dissociation in water.
same solvent so, Kb is same m is same (given)
ix. kb. m > iy. kb . m ⇒ ix > iy
so, x is undergoing dissociation in water.
Create a free account to view solution
View Solution FreeMore Mole Concept Questions
The percentage of Fe(III) present in iron ore Fe0.93 O1.00 is (Fe = 56)...Law of multiple proportions is not applicable for the oxide(s) of...In which of the following reactions, increase in the volume at constant temperature does not affect the number of moles ...For a hydrocarbon, the ratio of volume O2 used for complete combustion and the volume of CO2 formed is independent to th...Some bottles of colourless liquids were being labelled when the technicians accidentally mixed them up and lost track of...