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Which of the following is incorrect ?...

Which of the following is incorrect ?

A

Relative lowering of vapour pressure is independent

B

The vapour pressure is a colligative property

C

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

D

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

Text Solution

Verified by Experts

The correct Answer is:
D
According to Raoult.s law, the relative lowering in vapour pressure of a dilute solution is equal to mole fraction of the solute present in the solution.
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ERRORLESS-SOLUTIONS -NCERT BASED QUESTIONS (LOWERING OF VAPOUR PRESSURE)
  1. A solution is obtained by dissolving 12gof urea(mol.wt.60)in a litre o...

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  2. Equal weight of CH(4) " and " H(2) are mixed in an empty container at ...

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  3. The boiling point of a solution of 0.11g of a substance is 15g of ethe...

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  4. Two beakers of capacity 500 mL were taken. One of these beakers, label...

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  5. An aqueous solution of methanol in water has vapour pressure

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  6. Which solution will show the maximum vapour pressure at 300 K?

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  7. The relative lowering of vapour pressure is equal to the ratio between...

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  8. 5 cm^(3) of acetone is added to 100 cm^(3) of water . Then the va...

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  9. A solution has 1:4 mole ratio of pentane to hexane . The vapour pressu...

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  10. The vapour pressure lowering caused by addition of 100 g of sucrose (m...

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  11. Which of the following is incorrect ?

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  12. An ideal solution was obtained by mixing methanol and ethanol. If the ...

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  13. Which of the following has maximum vapour pressure?

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

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  15. The mass of glucose that would be dissolved in 50g of water in order t...

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  16. Assertion (A): Vapour pressure increase with increase in temperature. ...

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  17. Pick out the wrong statement (s). (i) Vapour pressure of a liquid ...

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  18. Low concentration of oxygen in the blood ndtissues of people living at...

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  19. When a liquid that is immiscible with water was steam distilled at 952...

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  20. A liquid has a vapour pressure of 40mm Hg at 19.0^(@)C and a normal bo...

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