Methods of purification Learning App | IGCSE O Level Chemistry MCQ e-Book PDF
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IGCSE O Level Chemistry MCQs – Practice Test 6 (Chapter 9)

Methods of purification MCQ with Answers PDF Download – Test 6

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The "Methods of purification MCQ" App Download (Android & iOS): Range of &minus5 oC to &minus25 oC is of; MCQ with answers: latent heat of freezing, depression of freezing point of ice, melting salted ice, and melting pure ice. Practice Basic Acidic Neutral & Amphoteric Quiz Questions, download Apple Book (Free Chapter) to improve chemistry online mobility.

Methods of purification MCQ with Answers PDF Download: Quiz 6

MCQ 26: Elevation of boiling points occur due to:

  1. presence of impurities
  2. reduced pressure
  3. high pressure
  4. lower rate of evaporation

MCQ 27: Range of −5 oC to −25 oC is of:

  1. depression of freezing point of ice
  2. latent heat of freezing
  3. melting salted ice
  4. melting pure ice

MCQ 28: The distillate is a liquid that:

  1. mixes together
  2. condenses after distillation
  3. does not sink due to very fine particles
  4. a substance that will not dissolve

MCQ 29: Presence of impurities in ethanol (C2H5OH) will:

  1. lower the boiling point
  2. raise the boiling point
  3. lower the rate of evaporation
  4. none of above

MCQ 30: A purple stain is obtained if the Ninhydrin spray is used to locate:

  1. peptones
  2. protean
  3. protein
  4. amino acids

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