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The vapour pressures of ethanol and meth...

The vapour pressures of ethanol and methanol are `42.0mm`and`88.0mmHg`respectively .An ideal solution is formed at the same temperature by mixing `46.0g`of ethanol with `16.0g`of methanol. The mole fraction of methanol in the vapour is:

A

0.467

B

0.502

C

0.513

D

0.556

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The correct Answer is:
C
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MOTION-LIQUID SOLUTION-EXERCISE-1 OBJECTIVE PROBLEMS JEE MAIN
  1. Mole fraction of vapour of A above solution in mixture of A and B(X(A)...

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  2. At a given temperature , total vapour pressure (in Torr) of a mixture ...

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  3. The vapour pressures of ethanol and methanol are 42.0mmand88.0mmHgresp...

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  4. A solution of sulphuric acid in water exhibits:

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  5. Binary liquid mixtures which exhibit positive deviations from Raoult’s...

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  6. Which of the following is not correct for an ideal solution ?

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  7. Which of the following conditions is not correct for ideal solution-

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

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  9. An ideal solution is that which over the entire range of conce...

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

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  11. Which pair shows a contraction in volume on mixing along with evolutio...

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  12. Azeotropic mixture of water and HCl boils at 381.5 K. By distilling th...

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

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

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  15. The van't Hoff factor (i) for a dilute aqueous solution of glucose is:

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  16. Vant Hoff factor (i)-

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  17. In case of electrolyte which dissociates in the solution the van Hoff ...

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  18. Which one of the following salts would have the same value of the Vant...

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  19. The exact mathematical expression of Raoult's law is ["n"="n"("solute"...

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  20. Which of the following aqueous solution will show maximum vapour press...

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