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IGCSE O Level Chemistry Practice Test 123

Atoms and Elements Quiz PDF: Questions and Answers - 123

The Atoms and Elements Quiz Questions and Answers PDF (Atoms and Elements Quiz Answers PDF e-Book) download Ch. 6-123 to solve IGCSE O Level Chemistry Practice Tests. Learn Elements, Compounds and Mixtures MCQ Questions PDF, Atoms and Elements Multiple Choice Questions (MCQ Quiz) to learn online certification courses. The Atoms and Elements Trivia App: Download free educational app for atoms and elements, proton and nucleon number, amphoteric oxides, dry cells, gce o level chemistry test prep for SAT subject tests.

The Quiz: Main elements of living things do not include; "Atoms & Elements" App Download (iOS & Android) with answers: Phosphorus; Nitrogen; Sodium; Calcium; to learn online certification courses. Study Elements, Compounds and Mixtures Questions and Answers, Google eBook to download free sample for SAT practice test.

Atoms & Elements Questions and Answers PDF Download: Quiz 123

MCQ 611:

Main elements of living things do not include

  1. nitrogen
  2. Phosphorus
  3. Sodium
  4. Calcium
MCQ 612:

The number of electrons in calcium is 20. outermost shall have as many as

  1. no electrons
  2. 1 electron
  3. 2 electrons
  4. more than 2 electrons
MCQ 613:

Which statement is correct about amphoteric oxides?

  1. they are only acidic oxides only
  2. they are only basic oxides only
  3. they are neutral oxides
  4. they are both acidic and basic oxides
MCQ 614:

Selective charges occur for the

  1. ions which require least energy to be discharged
  2. ions which require most energy to be discharged
  3. elements of group VII
  4. metal chlorides
MCQ 615:

Sulfite ion can be written symbolically as

  1. SO4−2
  2. SO3−2
  3. SO4−3
  4. S−2

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)

A level Chemistry App (Android & iOS)

A level Chemistry App (Android & iOS)

SAT Chemistry App (Android & iOS)

SAT Chemistry App (iOS & Android)