When 10 g of a non-volatile solute is dissolved in 100 g of benzene, it raises boiling point by 1ºC then molecular mass of the solute is (K_b for benzene = 2.53 km^-1)

Which of the following statements, regarding the mole fraction (x) of a component in solution, is incorrect?

2.5 litres of NaCl solution contain 5 moles of the solute.What is the molarity?

If 0.44 gm of substance dissolved in 22.2 gm of benzene lowers the freezing point of benzene by 0.567ºC, then the molecular mass of substance is, the molal depression constant= 5.12ºC mol^-1.

On adding a solute to a solvent having vapour pressure 0.80 atm, vapour pressure reduces to 0.60 atm. Mole fraction of solute is :

10g of NaCl is dissolved in 10⁶g of the solution. Its concentration is :

An aqueous solution of glucose is 10% in strength. The volume in which 1 g mole of it is dissolved, will be :

The osmotic pressure at 17ºC of an aq. solution containing 1.75 gm of sucrose per 150 ml solution is :

The molarity of pure water is :

The vapour pressure of pure benzene at 25°C is 640 mm Hg and that of solution of solute A is 630 mm Hg. The molality of solution is –