Chemistry Question Bank

Van’t Hoff factor more than unity indicates that the solute in solution has

Which of the following concentration factors affected by change in temperature?

Which of the following liquid pairs shows a positive deviation from Raoult's law?

A solution of acetone in ethanol

To a 4L of 0.2M solution of NaOH, 2L of 0.5 M NaOH are added. The molarity of resulting solution is :

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

A solution containing components A and B follows Raoult’s law

At high altitude the partial pressure of oxygen is less than that at the ground level. This leads to

What would happen if a thin slice of sugar beet is placed in a concentrated solution of NaCl?

Low concentration of oxygen in the blood and tissues of people living at high altitude is due to .............

If liquid A and B from ideal solutions

The concentration (in mol/L) of the solution having osmotic pressure 0.0821 atm at 300 K will be (AFMC 2009)

In which mode of expression, the concentration of solution remains independent of temperature?

Molarity of a solution containing 1g NaOH in 250 ml of solution is

Which of the following concentration terms is/are independent of temperature?

A mixture of benzene and toluene forms

At o 25 C, the total pressure of an ideal solution obtained by mixing 3 moles of ‘A’ and 2 moles of ‘B’, is 184 torr. What is the vapour pressure (in torr) of pure ‘B’ at the same temperature? (Vapour pressure of pure…

What is the molarity of 0.2 N Na₂CO₃solution?

The empirical formula of a non-electrolyte is CH₂O. A solution containing 6g/L of the compound exerts the same osmotic pressure as that of 0.05 M glucose solution. The molecular formula of the compound is SOLUTIONS

If the elevation in boiling point of a solution of 10 g of solute (molecular weight = 100) in 100 g of water is b T , the ebulliscopic constant of water is (Manipal 2010)

Among 0.1 M solutions of urea, Na₃PO₄ and Al₂ (SO₄)₃, which is incorrect

An aqueous solution of methanol in water has vapour pressure (MP PMT 2007)

Kf for water is 1.86 K kg mol–1. If your automobile radiator holds 1.0 kg of water, how many grams of ethylene glycol (C₂H₆O₂) must you add to get the freezing point of the solution lowered to –2.8ºC?

Ethylene glycol is used as an antifreeze in a cold climate. Mass of ethylene glycol which should be added to 4 kg of water to prevent it from freezing at – 6ºC will be (Kf for water = 1.86 K kg mol–1. and molar mass o…

A solution of urea (mol. mass 56 g mol–1) boils at 100.18ºC at the atmospheric pressure. If Kf and Kb for water are 1.86 and 0.512 K kg mol–1 respectively, the above solution will freeze at