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Cryoscopic constant of a liquid is:...

Cryoscopic constant of a liquid is:

A

decreases in freezing point when 1 gram of solute is dissolved per kg of the solvent

B

decreases in the dreezing point when 1 mole of solute is dissolved per kg of the solvent

C

the elevation for 1 molar solution

D

a factor used for calculation of elevation in boiling point

Text Solution

Verified by Experts

The correct Answer is:
B

`DeltaT_(f) = K_(f), m`
If `m = 1, DeltaT_(f) = K_(f)`
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ALLEN-SOLUTIONS-EXERCISE -01
  1. Which solution will show maximum elevation in b.pt:

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  2. The correct relationship between the boiling point of very dilute solu...

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  3. Cryoscopic constant of a liquid is:

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  4. At certain Hill-station pure water boils at 99.725^(@)C. If K(b) for w...

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  5. The freezing point of 1 molal NaCl solution assuming NaCl to be 100% d...

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  6. 10 gram of solute with molecular mass 100 gram mol^(-1) is dissolved i...

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  7. Depression in freezing point of solution of electrolytes are generally

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  8. A liquid is in equilibrium with its vapour at its boiling point. On av...

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  9. Which salt may show the same value of vant Hoff factor (i)as that of K...

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  10. Which compound corresponds vant Hoff factor (i) to be equal to 2 in di...

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  11. In which of the following the vant Hoff factor (i) is equal to one:

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  12. If the observed and theoretical molecular mass of NaCI is found to be ...

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  13. The substance A when dissolved in solvent B shows the molecular mass c...

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  14. Which of the following conditions is not correct for ideal solution:

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  15. Solution distilled without change in composition at a temperature is c...

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  16. If mole fraction of the solvent in a solution decreases than:

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  17. An azeotropic solution of two liquids has a boiling point lower than e...

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  18. The passing of solvent particles through semipermeable membrane is cal...

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  19. From the colligative properties of solution which one is the best meth...

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  20. As a result of osmosis the volume of the concentrated solution:

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