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IGCSE O Level Chemistry MCQs – Practice Test 31 (Chapter 3)

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Study Chemical Formulae and Equations Quiz Questions and Answers PDF for chemistry online academic continuity. Download the Chemical Formulae and Equations Quiz PDF e-Book, Ch. 3-31 to study IGCSE O Level Chemistry Course. Practice Chemical Symbols Quiz, Chemical Formulae and Equations MCQ questions and answers PDF for chemistry online academic continuity. Download the Chemical Formulae and Equations App: Free IGCSE O Level Chemistry Quiz App to study percent composition of elements career test to maximize chemistry digital networking.

Free Chemical Formulae and Equations Quiz App Download (Android & iOS): In H2SO4, the chemical composition of oxygen is; MCQ with answers: 0.5032, 0.1111, 0.6531, and 0.3265. Learn GCE O Level Chemistry Quiz Questions, download Google Book (Free Chapter) for chemistry online academic continuity.

Chemical Formulae & Equations Quiz with Answers PDF Download – Test 31

MCQ 151: Formula Ca(OH)2 is of:

  1. Calcium Hydrogen per oxide
  2. calcium hydroxy acids
  3. calcium hydrogen peroxide
  4. calcium hydroxide

MCQ 152: In H2SO4, the chemical composition of oxygen is:

  1. 0.1111
  2. 0.5032
  3. 0.6531
  4. 0.3265

MCQ 153: In Na2CO3.10H2O, the highest percentage composition is of:

  1. sodium
  2. oxygen
  3. water
  4. carbon

MCQ 154: Chemical composition of a compound:

  1. fixed
  2. not fixed
  3. variable
  4. none of above

MCQ 155: All are covalent compounds except:

  1. SO3
  2. SO2
  3. H2SO4
  4. HCl

Chemical Formulae & Equations Quiz App & e-Book – IGCSE O Level Chemistry Study Material

Acids and Bases MCQs
Speed of Reaction MCQs
Energy from Chemicals MCQs
Salts and Identification of Ions and Gases MCQs
Experimental Chemistry MCQs
Redox Reactions MCQs
Elements, Compounds and Mixtures MCQs
Chemical Bonding and Structure MCQs

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