Solutions Test ...

Two aqueous solution S₁ and S₂ are separated by a semi-permeable membrane.S₂ has lower vapour pressure than S₁. Then

Which statement is incorrect about osmotic pressure (P), volume (V) and temperature (T)?

n moles of a solute are dissolved in w g of water. If K_f is the molal depression constant of water, the freezing point of the solution will be

The molecular mass of a solute cannot be calculated by one of the following relations

Molal depression constant is calculated from the enthalpy of fusion (∆H_f ) and b.pt. of solvent using the relation

Which of the following aqueous solution do you expect to have the lowest freezing point?

The van’t Hoff’s factor (i) for a 0.2 molal aqueous solution of urea is

If a substance undergoes association or dissociation in the solution and i is the van’t Hoff factor, then the expression for osmotic pressure is

Benzoic acid undergoes dimerisation in benzene solution, the van’t Hoff factor ‘i’ is related to the degree of association ‘x’ of the acid as

For a dilute solution, Raoult’s law states that