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Which of the following is incorrect ?...

Which of the following is incorrect ?

A

Relative lowering of vapour pressure is independent of the nature of the solute and the solvent

B

The vapour pressure is a colligative property

C

Vapour pressure of a solution is lower than that of the solvent

D

The relative lowering of vapour pressure is directly proportional to the original pressure

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The correct Answer is:
D
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OP TANDON-SOLUTIONS (GENERAL AND COLLIGATIVE PROPERTIES)-Set-1 (Level-A)
  1. Which one of the following statements is false ?

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  2. A solution of sucrose (molar mass = 342 "g mol"^(-1)) has been prepare...

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  3. Which of the following is incorrect ?

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  4. Calculate the molal depression constant of a solvent which has a. Fr...

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  5. If for the sucrose solution elevation in boiling point is 0.1^(@)Cthen...

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  6. Which has minimum osmotic pressure ?

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  7. Solution A contains 7 g/L of MgCl(2) and solution B contains 7 g/L of...

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  8. The van't Hoff factor for BaCl(2) at 0.01 M concentration is 1.98. The...

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  9. Equimolar solutions in the same solvent have-

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  10. After adding non-volatile solute, freezing point of water decreases to...

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  11. The osmotic pressure of a solution of benzoic acid dissolved in benzen...

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  12. A 5% solution (by mass) of cane sugar in water has freezing point of 2...

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  13. 18g of glucose (C(6)H(12)O(6)) is added to 178.2g of water. The vapour...

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  14. Depression in freezing point is 6K for NaCl solution. If K(f) for wate...

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  15. Observe the following observations : pi(obs)= observed colligative p...

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  16. A 5.25% solution of a substance is isotonic with a 1.5% solution of ur...

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  17. Concentrated aqueous sulphuric acid is 98% H(2)SO(4) by mass and has a...

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  18. If the vapour pressure of pure A and pure B at 298 K are 60 and 15 tor...

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  19. When 20 g of naphthoic acid (C(11)H(8)O(2)) is dissolved in 50 g of be...

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  20. At 80^(@)C the vapour pressure of pure liquid 'A' is 520 mm Hg and tha...

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