IGCSE A Level Chemistry MCQs (A Level) From Textbook

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IGCSE A Level Chemistry Exam Prep: Practice Test 20 (Chapter 22)

Periodicity Notes Questions & Answers PDF Download - 20

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Periodicity Test Questions and Answers PDF Download: MCQ 20

MCQ: 96

The formula MgO shows Mg oxidation number to be

  1. +1
  2. +2
  3. −1
  4. −2
MCQ: 97

Sulfur reacts with chlorine to form

  1. SCl2 only
  2. S2Cl2 only
  3. SCl3
  4. SCl2 and S2Cl2
MCQ: 98

Ionic Chlorides of which of these do not react with water

  1. SiCl4
  2. MgCl2
  3. PCl5
  4. SCl2
MCQ: 99

Cations are much smaller than their

  1. atoms
  2. molecules
  3. protons
  4. photons
MCQ: 100

Without water, aluminum chloride exists as

  1. Al2Cl3
  2. AlCl3
  3. Al2Cl6
  4. Al2O3

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