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Questions and Answers
Which unit is useful in relating concentration of solution with its vapor pressure?
Molality
At equilibrium, the rate of dissolution of a solid solute in a volatile liquid solvent is?
Equal to the rate of crystallization
What type of solution is indicated when precipitation of substance 'A' takes place when a small amount of 'A' is added to the solution?
Supersaturated
Under which of the following cases will the dissolution of sugar be most rapid?
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The maximum amount of a solid solute that can be dissolved in a specified amount of a given liquid solvent does not depend upon?
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What causes low concentration of oxygen in the blood and tissues of people living at high altitude?
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Which of the following mixtures will show a positive deviation from Raoult’s law?
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What do colligative properties depend on?
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Which of the following aqueous solutions should have the highest boiling point?
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What is the unit of ebulioscopic constant?
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In comparison to a 0.01 M solution of glucose, the depression in freezing point of a 0.01 M MgCl2 solution is _____________?
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Why does an unripe mango placed in a concentrated salt solution to prepare pickle, shrivel?
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At a given temperature, osmotic pressure of a concentrated solution of a substance _____________?
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Which of the following statements is false?
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The values of Van’t Hoff factors for KCl, NaCl and K2SO4, respectively, are _____________?
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Study Notes
Solution Concentration and Vapor Pressure
- The unit useful in relating concentration of a solution with its vapor pressure is molality.
Equilibrium in Solutions
- At equilibrium, the rate of dissolution of a solid solute in a volatile liquid solvent is equal to the rate of crystallization of the solute from the solution.
Saturated and Unsaturated Solutions
- A solution is indicated as saturated when precipitation of a substance takes place when a small amount of the substance is added to the solution.
Factors Affecting Dissolution
- The dissolution of sugar will be most rapid when the solute and solvent are finely divided, and the mixture is agitated.
Solubility
- The maximum amount of a solid solute that can be dissolved in a specified amount of a given liquid solvent does not depend upon the shape of the solute particles.
High Altitude Effects
- Low concentration of oxygen in the blood and tissues of people living at high altitude is caused by the low air pressure, which reduces the oxygen content in the air.
Deviation from Raoult's Law
- A mixture of acetone and chloroform will show a positive deviation from Raoult's law.
Colligative Properties
- Colligative properties depend on the number of solute particles, not on their nature or size.
Boiling Point Elevation
- A 0.1 M solution of NaCl should have the highest boiling point compared to a 0.01 M solution of glucose or a 0.01 M solution of MgCl2.
Ebulioscopic Constant
- The unit of ebulioscopic constant is K kg/mol.
Freezing Point Depression
- The depression in freezing point of a 0.01 M MgCl2 solution is four times that of a 0.01 M solution of glucose.
Osmosis
- An unripe mango placed in a concentrated salt solution to prepare pickle shrivels due to the loss of water from the mango cells through osmosis.
Osmotic Pressure
- At a given temperature, the osmotic pressure of a concentrated solution of a substance is higher than that of a dilute solution.
False Statements
- The statement "A 0.1 M solution of NaCl has the same boiling point as a 0.1 M solution of glucose" is false.
Van't Hoff Factors
- The values of Van't Hoff factors for KCl, NaCl, and K2SO4, respectively, are 2, 2, and 3.
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Description
Test your knowledge of solutions in chemistry with this multiple choice quiz. Explore concepts such as relating concentration of solution with vapour pressure, and factors affecting the rate of dissolution of solutes in solvents.
