NCERT/Class 12/Chemistry/Solutions

Solutions

Class 12 · Chemistry

105 questions32 easy46 medium27 hard

Sample Questions

Q1.Reverse osmosis is used for:

  • AIncreasing concentration of solute
  • BDesalination of sea water
  • CIncreasing osmotic pressure
  • DDissolving more solute in solvent

Q2.Ethanoic acid dimerises in benzene primarily because:

  • ABenzene is a polar solvent
  • BBenzene has a low dielectric constant, favouring hydrogen bond-mediated dimerisation
  • CEthanoic acid is non-polar
  • DBenzene catalyses the dimerisation reaction

Q3.Which of the following is an example of a solid solution?

  • AOxygen dissolved in water
  • BEthanol dissolved in water
  • CCopper dissolved in gold
  • DCamphor in nitrogen gas

Q4.The mass percentage of benzene (C₆H₆) if 22 g of benzene is dissolved in 122 g of carbon tetrachloride is:

  • A18.03%
  • B15.28%
  • C22%
  • D84.72%

Q5.When one mole of KCl dissolves in water, the expected van't Hoff factor (i) is close to:

  • A0.5
  • B1
  • C2
  • D3

Q6.This is a sample question to preview what you'll get in the full practice test...

  • A. Option one
  • B. Option two
  • C. Option three
  • D. Option four
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Concepts Covered

Abnormal Molar MassesAssociation and DissociationAzeotropesColligative PropertiesConcentration UnitsDepression of Freezing PointElevation of Boiling PointHenry's LawIdeal SolutionsIsotonic SolutionsMass PercentageMolalityMolarityMole FractionNegative DeviationNon-ideal SolutionsOsmotic PressureParts Per MillionPositive DeviationRaoult's LawRelative Lowering of Vapour PressureReverse OsmosisSolubilityTypes of SolutionsVan't Hoff FactorVapour Pressure

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