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Short Answer Type

41. What do you understand by ‘colligative’ property?

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42. Why is vapour pressure of solution of glucose in water is lower than that of water?

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43. Draw the vapour pressure versus compositon diagram for an idal solution.

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44. What are isotonic solutions? How do they differ from hypotonic and Hypertonic solutions?

Answer:
A hypotonic solution in which it contain more solute than solvent.example a lot of salt (solute)
dissovled in water (solvent)

isotonic solution in which solute and solvent are equally distrubuted for example a cell normally wants to remain in an isotonic solution where concentration of liquid inside it is equal to the concentration of the liquid outside of it.

hypertonic solution in which contains more solvent than solute.

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45. What is the relationship between the eubllioscopic constant and the elevation in boiling point of the solution?

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46. How is the alcohol and water are miscible in all proportions?

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47. Why do gases nearly always tend to be less soluble in liquids as the temperature is raised?

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48. How is osmotic pressure related to the concentration (or number of moles) of a solute in solution?

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49. What is the effect of temperature on solubility of salt in water?

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50. What happens to vapour pressure of solution if table sugar or table salt is added to water?

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