Methods of purification Multiple Choice Questions and Answers 1 PDF Download

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MCQ on Methods of purification Test 1Quiz PDF Download

MCQ: Crude oil can be fractionally distilled to produce

  1. diesel
  2. petrol
  3. paraffin
  4. all of these

D

MCQ: Mixtures have

  1. a range of boiling points
  2. a range of melting points
  3. a lack of exact concentrations
  4. all of these

D

MCQ: Alternative techniques to crystallization involve

  1. decanting
  2. centrifuging
  3. filtration
  4. Both A and B

D

MCQ: Vacuum distillation is used

  1. under high pressures
  2. under low pressures
  3. on gentle heating
  4. upon quick heating

B

MCQ: When hot molten liquid cools,

  1. the first crystals are the most pure
  2. impure substances may also form the crystals
  3. it turns into gas
  4. it turns into aqueous solution

A