What are the products formed when chlorine is passed through aqueous hypo solution?

• Na₂SO₃ + HCl + S

• Na₂SO₃ + SO₃ + HCl

• Na₂SO₄ + HCl + S

• Na₂SO₄ + HCl + SO₂

The vapour pressure of water at 23°C is 19.8 mm, 0.1 mole of glucose is dissolved in 178.2 g ofwater. What is the vapour pressure (in mm) ofthe resultant solution?

• 19.0

• 19.602

• 19.402

• 19.202

Assertion (A) : The aqueous solution of CH₃COONa is alkaline in nature.

Reason (R) : Acetate ion undergoes anionic hydrolysis.

The correct answer is

• both (A) and (R) are true and (R) is the correct explanation of (A).

• both (A) and (R) are true but (R) is not the correct explanation of (A).

• (A) is true but (R) is not true.

• A) is not true but (R) is true.

During the depression in freezing point experiment, an equilibrium is established between the molecules of

• liquid solvent and solid solvent

• liquid solute and solid solvent

• liquid solute and solid solute

• liquid solvent and solid solute

105.

If BaCl₂,ionizes to an extent of 80% in aqueous solution, the value of van't Hoff factor is

• 2.6

• 0.4

• 0.8

• 2.4

X is a non-volatile solute and Y is a volatile solvent. The following vapour pressures are observed by dissolving X in Y.

X/mol L-1	Y/mm of Hg
0.10	p1
0.25	p2
0.01	p3

The correct order of vapour pressures is

• p₁ < p₂ <p₃

• p₃ < p₂ < p₁

• p₃ <p₁ < p₂

• p₂ <p₁ <p₃

Which one of the followng is an isotonic pair of solutions?

• 0.15 M NaCl and 0.11 M Na₂SO₄

• 0.2 M Urea and 0.1 M Sugar

• 0.1 M BaCl₂ and 0.2 M Urea

• 0.4 M MgSO₄ and 0.1 M NH₄Cl

The vapour pressure in mm of Hg, of an aqueous solution obtained by adding 18 g of glucose (C₆H₁₂O₆) to 180g of water at 100°C is

• 76.0

• 7.60

• 759

• 752.4

The weight in grams of a non-volatile solute (mol. wt. 60) to be dissolved in 90 g of water to produce a relative lowering of vapour pressure of 0.02 is

• 4

• 8

• 6

• 10

The experimentally determined molar mass of a non-volatile solute, BaCl₂ in water by Cottrell's method, is

• equal to the calculated molar mass

• more than the calculated molar mass

• less than the calculated molar mass

• double of the calculated molar mass