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IGCSE O Level Chemistry Certification Exam Tests

IGCSE O Level Chemistry Practice Test 5

Atoms and Elements Quiz Questions and Answers PDF - 5

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Atoms & Elements Questions and Answers PDF Download: Quiz 5

MCQ 21: Brass is an example of an/a

  1. alloy
  2. compound
  3. mixture
  4. element

MCQ 22: If acidified Potassium Dichromate(VI) (K2Cr2O7) acts as oxidizing agent, color changes from

  1. orange to red
  2. orange to green
  3. yellow to green
  4. yellow to red

MCQ 23: A particle maybe a/an

  1. atom
  2. molecule
  3. isotope
  4. all of above

MCQ 24: If the proton (p+) number of an element changes, it will become a/an

  1. isotope
  2. another element
  3. electrolyte
  4. none of above

MCQ 25: Aluminum (Al) is preferred in overhead power cables because

  1. it is a good conductor
  2. it acts as an insulator, in case of lightening
  3. it prevents accidents
  4. it is lighter in weight

IGCSE O Level Chemistry Exam Prep Tests

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Atoms & Elements App (Android & iOS)

Atoms & Elements App (Android & iOS)

O Level Chemistry App (Android & iOS)

O Level Chemistry App (iOS & Android)

10th Grade Chemistry App (Android & iOS)

10th Grade Chemistry App (Android & iOS)

College Chemistry App (Android & iOS)

College Chemistry App (iOS & Android)