Depression in freezing point is directly proportional to
mole fraction of the solution
molarity of the solution
molality of the solution.
molality of the solvent.
C.
molality of the solution.
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True Or False
The correct order of increasing vapour pressure of 0.1 m aqueous solution of glucose, NaCl and magnesium chloride is glucose < NaCl < magnesium chloride.
A.
False
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Multiple Choice Questions
Van’t Hoff factor for an electrolyte is
> 1
< 1
= 1
none of the above
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Molality is expressed in
Grams/litre
Litres / moles
Moles/litre
Moles / kg
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Which of the following does not show positive deviation from Raoult’s low?
Benzene-chlorofrom
Benzene-acetone
Benzene-ethanol
Benzene-carbon tetrachloride
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Increasing the temperature of an aqueous solution will cause.
decrease in molarity
decrease in molality
decrease in mole fraction
decrease in % (w / W)
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When mango is placed in aqueous solution of hydrochloric acid, it
Shrinks
Swells
Bursts
Nothing happens
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True Or False
Molality is expressed in moles/kg.
A.
False
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Multiple Choice Questions
Which of the following liquid pairs will show positive deviation from Raoult’s law?
water-hydrochloric acid
water-nitric acid
acetone chloroform
Benzene-methanol.
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True Or False
Molal depression constant depends upon the nature of the solvent.
