Solutions Test ...

Only One Option Correct Type
This section contains 13 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct

Elevation in boiling point of an aqueous solution of a non-electrolyte solute is 1.04°. What is the depression in freezing point of this solution?

K_f (H₂0) = 0.52° mol^-1 kg

K_f (H₂0) = 1.86° mol^-1 kg 

12.8 g of naphthalene (C₁₀H₈) is dissolved in 92 g toluene (C₇H₈). Boiling point of this solution is

(boiling point of toluene = 110°Cand mole fraction boiling point elevation constant of toluene is 36.1 K)

Elevation in boiling point of a molar (1 M) glucose solution (d = 1.2 g mL^-1) is

For a dilute solution containing 2.5 g of a non-volatile non-electrolyte solute in 100 g water, the elevation in boiling point at 1 atm pressure is 2°C. Assuming concentration of solute is much lower than the concentration of solvent, the vapour pressure (mm of Hg) of the solution is (Take, K_b = 0.76 K mol^-1 kg).

[IITJEE2012]

Relative lowering of vapour pressure of a non-volatile solute X in water is 0.05. If   K_b(H₂0) = 0.52° mol^-1  kg^-1.

(ΔT_b) = elevation in boiling point assuming a dilute solution

(AT_b)' = elevation in boiling point assuming a solution of moderate concentration then, {ΔT_b) - {ΔT_b)' =

6% aqueous solution of urea (by mass of solvent) has elevation in boiling point xt. 18% aqueous solution of glucose (by mass of solvent) has elevation in boiling point x₂. If these two solutions are mixed then, elevation in boiling point is x₃. Then,

AB is a sparingly soluble salt in aqueous solution with K_sp =1x10^-8. If K_b(H₂0 ) = 0.52° mol^-1 kg then elevation in boiling point of saturated solution is 

Elevation in boiling point of a solution of non-electrolyte in non-polar solvent (toluene) is 0.3°. Mole fraction elevation constant of non-polar solvent is 36.1 K. Thus, molality (mol kg^-1) of the solution is

Which of the given aqueous solution has maximum boiling point? 

(K_b of H₂0 = 0 .5 2 ° mol^-1 kg), T_b (H₂0 ) = 373 K)

X and Y both are soluble in given solvent. Molar mass of the polymer Y is

Given, H₂0 ( / ) H₂0 ( g ) a t 373 K, ΔH° = 9.72 kcal mol^-1 and the concentration of the sucrose in water is 0.1 M. Find the elevated boiling point of water.

Glucose solution is 20% by weight of solution. Its boiling point is ........
Given 1 molal urea solution boils at 100.52° C and water boils at 1 atm pressure,

Latent heat of fusion and latent heat of vaporisation of a solvent are in the ratio of 1: 6 and freezing point and boiling point (in Kelvin scale) are in the ratio of 2:3. Thus, ratio of elevation in boiling point to depression in freezing point of 1 molal solution is