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IGCSE A Level Chemistry MCQs – Practice Test 25 (Chapter 22)

Periodicity MCQs with Answers PDF Download – Test 25

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Learn Periodicity Multiple Choice Questions (MCQs) with Answers PDF to strengthen academic skills. Download the Periodicity MCQs PDF e-Book, Ch. 22-25 to study IGCSE A Level Chemistry Course. Practice Oxides of Period 3 Elements MCQs, Periodicity quiz questions and answers PDF for chemistry online professional credentials. Download the Periodicity MCQs App: Free IGCSE A Level Chemistry Learning App to study chlorides of period 3 elements, chemical properties of oxygen, oxides and hydroxides of period 3 elements, electrical conductivity in period 3 oxides career test to strengthen chemistry performance.

Free Periodicity Learning App Download: Oxidation number of S in SCl2 is; MCQ with answers: +3, +2, +4, and Ƴ. Solve Catalysis Quiz Questions, download Google e-Book (Free Chapter) to strengthen academic skills.

Periodicity MCQs with Answers PDF Download: MCQ Quiz 25

MCQ 121: In Phosphoric acid H3PO4, the oxidation state of Phosphorus is:

  1. +1
  2. +3
  3. +5
  4. +7

MCQ 122: The oxidation number of S in SCl2 is:

  1. +2
  2. +3
  3. +4
  4. +5

MCQ 123: The systematic name of sulfur trioxide is:

  1. sulfur(III) oxide
  2. sulfur(IV) oxide
  3. sulfur(VI) oxide
  4. sulfur(V) oxide

MCQ 124: Upon reacting with alkalis, insoluble oxides of non-metals of Period 3 form:

  1. Insoluble salts
  2. soluble salts
  3. H2(g)
  4. aqueous solutions

MCQ 125: One of the oxides among the four given below, the best electrical conductor is:

  1. Na2O
  2. Al2O3
  3. MgO
  4. all of above

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