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61.
Why is boiling point elevated when a non-volatile solute is added?
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62.
The osmotic pressure of polymers (Macro-molecules) are determined by osmotic pressure and not by other colligative properties. Explain.
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63.
What happens when blood cells are placed in pure water?
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64.
What are the factors on which the vapour pressure of a liquid depends?
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65.
State the conditions under which the Raoult’s law holds good.
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66.
What are the different types of azetropes? Give one example of each.
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67.
Give an example of a compound in which hydrogen bonding results in the formation of a dimer.
Acetic acid and benzoic acid exist as dimer due to hydrogen bonding when dissolved in an organic solvent.
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68.
State any two characteristics of an ideal solution.
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69.
What are the value ΔH, ΔV and P
total
for a solution showing negative deviation from identity? Give one example.
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70.
If the membrane used in determination of osmotic pressure is slight leaking, how will it influence the measured value of osmotic pressure?
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