Liquid Solution Questions

Pure benzene freezes at 5.45°C at a certain place but a 0.374 m solution of tetra chloroethane in benzene freezes at 3.55°C. The Kf for benzene is-

The osmotic pressure of the solution having concentration 0.05 M.

A solution of benzoic acid dissolved in benzene will show a molecular mass closer to -

If the vapour pressure of solutions of two liquids are less than those expected from ideal solution they are said to have-

Cryoscopic constant of a liquid is-

1000 g aqueous solution of CaCO₃ contains 10 g of calcium carbonate. Concentration of solution is-

The osmotic pressure of 10%(w/v) aqueous solution of urea (π₁) is related to that of 10%(w/v) aqueous solution of glucose (π₂) as -

A molar solution represents a solution of molarity equal to-

An azeotropic solution of two liquids has boiling point lower than either when it -

Molality of the solution is-

One among the following is an incorrect statement-

When 5.0 gram of BaCl₂ is dissolved in water to have 10⁶ gram of solution. The concentration of solution is-

0.2 mole of HCl and 0.1 mole of CaCl₂ were dissolved in water to have 500 mL of solution, the molarity of Cl− ions is-

25 mL of 3 M HCl were added to 75 mL of 0.05 M HCl. The molarity of HCl in the resulting solution is approximately-

In order to prepare 100 cm³ of 0.250 M barium chloride solution the amount of BaCl₂·2H₂O required will be (Ba = 137) -

The molecular weight of NaCl determined by studying freezing point depression of its 0.5% aqueous solution is 30. The apparent degree of dissociation of NaCl is -

If 18 gram of glucose (C₆H₁₂O₆) is present in 1000 gram of an aqueous solution of glucose it is said to be-

In which case van't Hoff factor is maximum?

pH of 1 M HA (weak acid) is 2. Hence van't Hoff factor is -

If pKa = −log Ka = 4, and Ka = Cα² then van't Hoff factor for weak monobasic acid when C = 0.01 M is -

A complex containing K+, Pt(IV) and Cl− is 100% ionised giving i = 3. Thus, complex is -

For a solution containing non-volatile solute, the relative lowering of vapour pressure is 0.2. If the solution contains 5 moles in all, which of the following are true? I. Mole fraction of solute = 0.2 II. Number of moles of solute = 0.2 III. Number

Which one of the following pairs of solution can we expect to be isotonic at the same temperature-

Assuming each salt to be completely dissociated which of the following will have highest osmotic pressure-

The osmotic pressure of a solution of benzoic acid dissolved in benzene is less than expected because-

The relationship between osmotic pressure at 273 K when 10 g glucose (P₁), 10 g urea (P₂) and 10 g sucrose (P₃) are dissolved in 250 mL of water is -

Consider following solutions - I : 1 M aq. glucose II : 1 M aq. sodium chloride III : 1 M benzoic acid in benzene IV : 1 M ammonium phosphate Select incorrect statement -

2.56 g of sulphur in 100 g of CS₂ has depression in f.p. of 0.010°, Kf = 0.1° (molal)⁻¹. Hence, atomicity of sulphur is -

An aqueous solution of urea containing 18 g urea in 1500 cm³ of solution has a density of 1.052 g cm⁻³. If the molecular weight of urea is 60, then molality of solution is-

Decimolar solution of potassium ferricyanide, K3[Fe(CN)6], has osmotic pressure 3.94 atm at 27°C. Hence percent ionisation of the solute is -

Van't Hoff factors of aqueous solutions of X, Y, Z are 1.8, 0.8 and 2.5. Hence their -

At a given temperature, total vapour pressure in Torr of a mixture of volatile components A and B is given by P = 120 − 75 XB Hence, vapour pressure of pure A and B respectively (in Torr) are -

Total vapour pressure of mixture of 1 mol volatile component A (p°A = 100 mmHg) and 3 mol volatile component B (p°B = 60 mmHg) is 75 mmHg. For such case -

Select correct statement -

Which one of the following salts would have the same value of the Vant Hoff factor (i) as that of K₃[Fe(CN)₆]-

In case of electrolyte which dissociates in solution the Vant Hoff's Factor-

Vant Hoff factor (i)-

The Vant Hoff factor (i) for a dilute aqueous solution of glucose is-

In which of the following, the Vant Hoff factor (i) is equal to one-

Which aqueous solution has minimum freezing point -

Which salt may show the same value of Vant Hoff factor (i) as that of K₄Fe(CN)₆ in very dilute solution state -

0.5 M solution of urea is isotonic with-

The correct relationship between the boiling points of very dilute solutions of AlCl₃ (t₁) and CaCl₂ (t₂), having the same molar concentration is-

Which of the following 0.1 M aqueous solutions will have the lowest freezing point-

Which solution will show maximum elevation in b.pt-

According to Boyle-Vant Hoff law for solutions, the osmotic pressure of a dilute solution is-

Two solutions have different osmotic pressures. The solution of higher osmotic pressure is called-

If mole fraction of the solvent in a solution decreases then-

In the case of osmosis, solvent molecules move from-

The passing of solvent particles through semipermeable membrane is called-