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IGCSE O Level Chemistry MCQs – Practice Test 25 (Chapter 3)

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Study Chemical Formulae and Equations Multiple Choice Questions (MCQs) with Answers PDF (Chemical Formulae and Equations MCQs PDF e-Book) download Ch. 3-25 to study IGCSE O Level Chemistry Course. Practice Percent Composition of Elements MCQs, Chemical Formulae and Equations quiz questions and answers PDF for chemistry online learning environment. The Chemical Formulae and Equations MCQs App Download: Free IGCSE O Level Chemistry Learning App to study chemical and ionic equations, chemical symbols career test for chemistry study plans.

Free "Chemical Formulae and Equations MCQs" App Download with MCQ: While calculating the empirical formula, the simplest ratio is obtained by dividing the; with answers: largest number, smallest number, relative atomic mass, and relative mass of a covalent compound for chemistry study plans. Solve Salts: Hydrogen of Acids Quiz Questions, download Google e-Book (Free Chapter) to strengthen chemistry achievement.

Chemical Formulae & Equations MCQs with Answers PDF Download: MCQ Quiz 25

MCQ 121: While calculating the empirical formula, the simplest ratio is obtained by dividing the:

  1. smallest number
  2. largest number
  3. relative atomic mass
  4. relative mass of a covalent compound

MCQ 122: To balance Al(OH)3 + HNO3 → Al(NO3)3 + H2O, number of H2O molecules produced will be:

  1. 2
  2. 4
  3. 6
  4. 8

MCQ 123: Hydrogen Sulfate (H2SO4) has:

  1. positive charge
  2. negative charge
  3. double negative charge
  4. double positive charge

MCQ 124: To balance Cu + H2SO4 → CuSO4 + H2O + SO2; number of H2SO4 molecules will be:

  1. 1
  2. 2
  3. 3
  4. 4

MCQ 125: One molecule each of Magnesium Chloride (MgCl2), Water (H2O) and Carbon dioxide (CO2) results if the reactants are:

  1. MgCO3 and HCl
  2. MgCO3 and 2HCl
  3. MgHCO3 and HCl
  4. MgHCO3 and 2HCl

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Chemical Formulae and Equations MCQs
Electricity and Chemistry MCQs
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Acids and Bases MCQs
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