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Why is the vapous pressure of an aqueous...

Why is the vapous pressure of an aqueous solution of gulucose lower than that of water ?

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At a number of sites, volatile water molecules are replaced by non-volatile glucose molecules. Hence, effective surface area for evaporation decreases. This leads to decrease in vapour pressure.
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ICSE-SOLUTIONS-EXERCISE (PART-II Descriptive Questions) (VERY SHORT ANSWER QUESTIONS)
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  3. Why is the vapous pressure of an aqueous solution of gulucose lower th...

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  8. Osmotic Pressure

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  9. What is meant by reverse osmosis?.

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  10. Under what condition Van't Hoff factor (i) is (a) equal to unity, ...

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  11. Under what condition Van't Hoff factor (i) is (a) equal to unity, ...

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  14. What is the van't Hofffactor for a compound which undergoes tetrameri...

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  15. How is the vapour pressure of a solvent afffected when anon volatile s...

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  16. Which aqueous solution has higher concentration , 1 molar or 1 molal ...

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  17. What do you mean by saying that the molarity of a solution is one.

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  18. What is the relation between normality and molarity of a solution?

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  19. Write expressions for the Raoult's law for non-volatile solutes.

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  20. Define an ideal solution and write one of its characteristics.

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