Van’t Hoff factor for an electrolyte is 
  • > 1
  • < 1
  • = 1
  • none of the above

A.

> 1
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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


A.

Benzene-chlorofrom
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Which of the following compounds corresponds vant’t Hoff factor to be equal to 2 for dilute solution?
  • K2SO4
  • Na2SO4
  • Sugar
  • MgSO4

D.

MgSO4
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When mango is placed in aqueous solution of hydrochloric acid, it
  • Shrinks
  • Swells
  • Bursts
  • Nothing happens

B.

Swells
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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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