Chemistry Question Bank

The milli moles of N₂ gas that will dissolve in 1L of water at 298 K. when it is bubbled through water and has a partial pressure of 0.96 bar will be (Given that at 298 K KH = 76.8 k bar)

An ideal solution is formed when its constituents

Exactly 1 g of urea dissolved in 75 g of water gives a solution that boils at 100.114°C at 760 torr. The molecular weight of urea is 60.1. The boiling point elevation constant for water is

The vapour pressure of a solvent decreases by 10 mm of Hg when a non-volatile solute was added to the solvent. The mole fraction of the solute in the solution is 0.2. What should be the mole fraction of the solvent if…

A 5% solution (by mass) of cane sugar in water has freezing point of 271 K and freezing point of pure water is 273.15 K. The freezing point of a 5% solution (by mass) of glucose in water is

A solution containing 10g per dm3 of urea(molecular mass = 60 g mol–1) is isotonic with a 5% solution of a non-volatile solute. The molecular mass of this non- volatile solute is

At a particular temperature, the vapour pressures of two liquids A and B are respectively 120 and 180 mm of Hg respectively. If 2 moles of A and 3 moles of B are mixed to form an ideal solution, the vapour pressure of…

Assertion: If one component of a solution obeys Raoult’s law over a certain range of composition, the other component will not obey Henry’s law in that range. Reason: Raoult’s law is a special case of Henry’s law.

The volume of 10N and 4N HCl required to make 1L of 7N HCl are

The normality of 10% (weight/volume) acetic acid is

When acetone and chloroform are mixed together, hydrogen bonds are formed between them. Which of the following statements is correct about the solution made by mixing acetone and chloroform?

What weight of glycerol should be added to 600 g of water in order to lower its freezing point by 10ºC? (Kf = 1.86ºC m–1). (Molecular mass of glycerol is 92)

A solution containing 12.5g of non-electrolyte substance in 185g of water shows boiling point elevation of 0.80 K. Calculate the molar mass of the substance. SOLUTIONS (Kb = 0.52 K kg mol-1)

12g of urea is dissolved in 1 litre of water and 68.4 g of sucrose is dissolved in 1 litre of water. The lowering of vapour pressure of first case is

Mole fraction of the solute in a 1.00 molal aqueous solution is (AIPMT 2011)

A solution of two liquids boils at a temperature more than the boiling point of either of them. Hence, the binary solution shows (KCET 2011)

pA and pB are the vapour pressure of pure liquid components A and B respectively of an ideal binary solution. If xA represents the mole fraction of component A, the total pressure of the solution will be (AIPMT 2012)

The molarity of a solution obtained by mixing 800 mL of 0.5 M HCl with 200 mL of 1M HCl will be

The system that forms maximum boiling azeotrope is

A solution has higher osmotic pressure than its standard solution. Which of the following term will be used for this solution? (OJEE 2012)

Isotonic solutions are the solutions having the same (RPMT 2010)

4 L of 0.02 M aqueous solution of NaCl was diluted by adding one litre of water. The molarity of resultant solution is …A… Here, A refers to

What happens when an egg is kept in saturated solution of NaCl after removing its hard shell in dilute HCl? (OJEE 2010)

The osmotic pressure is expressed in the unit of (VMMC 2010)

6.02 × 1020 molecules of urea are present in 100 mL of its solution. The concentration of solution is (NEET 2013)