Correct or false statement about colligative properties

1. A.
   The boiling point of solution containing non-volatile solute is always higher than pure solvent.
2. B.
   At any temperature the vapour pressure of solution containing non-volatile solute is lower than that of pure solvent.
3. C.
   The boiling point of liquid is the temperature at which its vapour pressure equals atmospheric pressure.
4. D.
   The molal elevation constant is the boiling point elevation produced by 1 molar solution.

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1. A.
   The osmosis is a colligative property
2. B.
   The vapour pressure of solution containing nonvolatile solute is lower than that of pure solvent at any given temperature
3. C.
   The osmotic pressure of 0.1 M NaCl solution is lower than 0.1 M sucrose solution
4. D.
   The boiling point of solution containing nonvolatile solute is lower than that of pure solvent

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1. A.
   The vapour pressure of a solvent increases by dissolving nonvolatile solute into it.
2. B.
   The boiling point of solvent decreases by dissolving a nonvolatile solute into it.
3. C.
   The osmotic pressure of electrolytic solution is greater than nonelectrolytic solution of the same concentration.
4. D.
   The freezing point of solvent is a colligative properly.

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1. A.
   It is directly proportional to molar mass of solvent.
2. B.
   It is directly proportational to the concentration of solution.
3. C.
   It is inversely proportional to number of moles of solute in solution.
4. D.
   It is inversely proportional to tempertaure.

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