19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
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
What would happen if a thin slice of sugar beet is placed in a concentrated solution of NaCl?
Solutions A, B, C and D are respectively 0.1M glucose, 0.05 M NaCl, 0.05 M BaCl₂ and 0.1 M AlCl₃. Which one of the following pairs is isotonic?
Which of the following pairs of solutions is isotonic?
Which of the following pairs shows a negative deviation from Raoult's law?
Which statement is incorrect about osmotic pressure (), volume (V) and temperature (T)?
Two solutions A and B are separated by a semi- permeable membrane. As a result of osmosis, the level of solution A is found to rise. It implies that
The Van’t Hoff factors i for an electrolyte which undergoes dissociation and association in solvents are respectively
A non-ideal solution was prepared by mixing 30 mL chloroform and 50 mL acetone. The volume of mixture will be
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…
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?
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
2g of sugar is added to one litre of water to give sugar solution. What is the effect of addition of sugar on the boiling point and freezing point of water?
0.052 100.052 6 / 60 x x x x b b b b b o b T T T T T T C 102. An aqueous solution of Glucose freezes at –0.186 °C. Given that 0.512 H O b K K kg mol and 1.86 H O f K K kg mol , the elevation in boiling point of this s…
An aqueous solution of a non-electrolyte solute boils at 100.52ºC. The freezing point of the solution will be (Kf = 1.86K Kg mol-1, Kb = 0.52 K kg mol-1)
The freezing point of 1 molal Glucose solution in water is ( 1.86 H O f K K kg mol )
Which of the following colligative properties can provide molar mass of proteins (or polymers of colloids) with greater precision?
The freezing point of equimolal aqueous solutions will be highest for
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)
Depression of freezing point for …(i)… is directly proportional to …(ii)… Here, (i) and (ii) refer to
Osmotic pressure is proportional to
The amount of urea to be dissolved in 500 cc of water (K = 1.86) to produce a depression of 0.186ºC in the freezing point is
The freezing point of a 0.05 molal solution of a non- electrolyte in water is
Given that Tf is the depression in freezing point of the solvent in a solution of a nonvolatile solute of molality 1, the quantity f m T lt m → is equal to
Pure benzene freezes at 5.45ºC at a certain place but a 0.374m solution of tetrachloroethane in benzene freezes at 3.55ºC. The Kf for benzene is