Please be patient as the PDF generation may take up to a minute.

Given that the pH of a 0.1 M monobasic acid is 2, what is the osmotic pressure at a given temperature T?
1. 0.1RT
2. 0.11RT
3. 1.1RT
4. 0.01RT

The mole(s) of K₂SO₄ to be dissolved in 12 moles of water to lower its vapor pressure by 10 mm of Hg at a temperature at which vapor pressure of pure water is 50 mm of Hg is :

The relative lowering of vapour caused by dissolving 71.3 g of a substance in 1000 g of water is 7.13 x 10^-3. The molecular mass of the substance is-
1. 180 g mol^-1
2. 18 g mol^-1
3. 1.8 g mol^-1
4. 360 g mol^-1

During osmosis, the flow of water through a semi-permeable membrane is :
1. From solution having higher concentration only
2. From both sides of the semi-permeable membrane with equal flow rates
3. From both sides of the semi-permeable membrane with unequal flow rates
4. From solution having lower concentration only

The Vapour pressure of CCl₄ at 25°C is 143 mm Hg. 0.5 g of a non-volatile solute (mol. wt. 65) is dissolved in 100 ml of CCl₄. The vapor pressure of the solution is:
(Density of CCl₄ = 1 .58 g/cm³$)$
1. 141.93 mm Hg
2. 94.39 mm Hg
3. 199.34 mm Hg
4. 143.99 mm Hg

An aqueous solution containing 1 g of urea boils at 100.25 °C. The aqueous solution containing 3 g of glucose in the same volume will boil at:
1. 100.75 °C
2. 100.5 °C
3. 100 °C
4. 100.25 °C

1.00 g of non-electrolyte solute (molar mass 250 g mol^-1) was dissolved in 51.2 g of benzene. If the freezing point depression constant, K_f of benzene is 5.12 mol^-1 kg K, the freezing point of benzene will be lowered by:
1. 0.4 K
2. 0.3 K
3. 0.5 K
4. 0.2 K

Aqueous solutions of 0.004 M Na₂SO₄ and  0.01 M Glucose are isotonic. The degree of dissociation of Na₂SO₄ is-
1. 25% 
2. 60%
3. 75% 
4. 85%

When 20 g of naphthoic acid (C₁₁H₈O₂) is dissolved in 50 g of benzene, a freezing point depression of 2 K is observed. What is the Van’t Hoff factor (i)?
(Given: K_f = 1.72 K kg mol^–1)

Which one of the following electrolytes has the same value of van't Hoff's factor(i) as that of Al₂(SO₄)₃ (if all are 100% ionised)? 
1. K₂SO₄
2. K₃[Fe(CN)₆]
3. Al(NO₃)₃
4. K₄[Fe(CN)₆]

The osmotic pressure of 5% (mass-volume) solution of cane sugar at 150°C (mol. mass of sugar = 342) is:
1. 4 atm
2. 5.07 atm
3. 3.55 atm
4. 2.45 atm

A solution containing 3.3 g of a substance in 125 g of benzene (b.p. 80 °C) boils at 80.66 °C. If K_b for one litre of benzene is 3.28 °C m^-1, the molecular weight of the substance shall be -
1. 127.20 g mol^-1
2. 131.20 g mol^-1
3. 137.12 g mol^-1
4. 142.72 g mol^-1

The Van't Hoff factor for 0.1 M Ba(NO₃)₂ solution is 2.74. The degree of dissociation is -
1. 91.3 %
2. 87 %
3. 100 %
4. 74 %

Preservation of fruits against bacterial action by adding sugar is an example of-
1. Exosmosis
2. Reverse-osmosis
3. Diffusion
4. Capillary action

A solution that has the highest boiling point among the following is:
1. 1.0 M NaOH
2. 1.0 M Na₂SO₄ 
3. 1.0 M NH₄NO₃
4. 1.0 M KNO₃

The unit of Ebullioscopic constant is:
1. K kg mol^–1 or K (molality)^–1
2. mol kg K^–1 or K^–1 (molality)
3. kg mol^–1 K^–1 or K^–1 (molality)^–1
4. K mol kg^–1 or K (molality)

In comparison to a 0.01 M solution of glucose, the depression in the freezing point of a 0.01 M MgCl₂ solution will be:

The incorrect statement among the following is:

The incorrect statement among the following is:

Three aqueous solutions of NaCl are labelled as ‘A', ‘B’ and ‘C with concentrations 0.1 M, 0.01 M and 0.001 M, respectively. The value of van’t Hoff factor for these solutions will be in the order of :
1. i_A < i_B < i_C
2. i_A > i_B > i_C
3. i_A = i_B = i_C
4. i_A < i_B > i_C