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Methods of purification MCQ Questions and Answers PDF Download eBook

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"In order to lower melting point of ice," Multiple Choice Questions (MCQ) on methods of purification with choices solar energy shall be waited for, hot water shall be poured, salt can be spread over the ice, and the ice shall be scrapped from the roads and doorways for best online ACT prep class. Practice pure substances and mixtures quiz questions for jobs' assessment test and online courses for colleges that offer online courses.

MCQs on Methods of purification Quiz PDF Download eBook

MCQ: In order to lower melting point of ice,

  1. hot water shall be poured
  2. solar energy shall be waited for
  3. salt can be spread over the ice
  4. the ice shall be scrapped from the roads and doorways


MCQ: In the fractionating column of fractional distillation, as we go higher in the column the

  1. temperature becomes lower
  2. temperature becomes higher
  3. minimum absorption is carried out
  4. risks of sublimation exists


MCQ: After centrifugation when the sublimate settles, the clear liquid can be

  1. allowed to rest
  2. allowed to form crystals
  3. decanted off
  4. evaporated


MCQ: Pure stearic acid melts at exactly

  1. 78 °C
  2. 70 °C
  3. below 70 °C
  4. above 80 °C


MCQ: In order to separate colors, dyes and amino acids, the useful method will be

  1. crystallization
  2. centrifugation
  3. filtration
  4. chromatography