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In which case Raoult's law is not applic...

In which case Raoult's law is not applicable ?

A

1m NaCl

B

1M urea

C

1M glicose

D

1M sucrose

Text Solution

Verified by Experts

The correct Answer is:
A
Raoult's law is not applicable if the total number of particles of solute changes in the solution due to association or dissociation.
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-SOLUTIONS AND COLLIGATIVE PROPERTIES -Exercise 1 (Types of Solutions and Concentration of Solutions)
  1. Which of the following will show a negative deviation from Raoult's la...

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  2. Mole fraction of vapour of A above solution in mixture of A and B(X(A)...

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  3. In which case Raoult's law is not applicable ?

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  4. Which of the following liquid pairs shows a positive deviation from Ra...

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  5. If two substances A and B have p(A)^(@): p(B)^(@) = 1:2 and have mole ...

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  6. Relative lowering in vapour pressure of solution containing non-volati...

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  7. The vapour pressure of pure benzene at a certain temperature is 640 mm...

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  8. If M is molecular of solvent, K(b) is molal elevation constant, T(b) i...

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  9. Solute is non-volatile and solvent molecule is volatile. Which of the ...

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  10. When two liquids A and B are mixed, their boiling points become greate...

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  11. Vapour pressure of C CL(4) at 25^@C is 143 mmHg 0.05g of a non-volatil...

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  12. The vapour pressure of two liquids P and Q are 100 and 50 torr, respec...

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  13. Which of the following plot obeys the Raoult's law for all concentrati...

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  14. At 40^(@)C the vapour pressure of pure liquids, benzene and toluene, a...

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  15. The solution which shows large positive deviation from Raoult's law fo...

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  16. 1xx10^(3)m" solution of Pt "(NH(3))(4)Cl(4) " in "H(2)O shows depress...

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  17. What happens to freezing point of benzene when nephthalens is added ?

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

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  19. The difference between the boiling point and freezing point of an aque...

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  20. A 6% of urea is isotonic with

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