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IGCSE O Level Chemistry Practice Test 17

Chemical Symbols Quiz Questions and Answers PDF - 17

The Book Chemical Symbols Quiz Questions, chemical symbols quiz answers PDF download, e-Book Ch. 3-17 to study free igcse chemistry online courses. Practice Chemical Formulae and Equations MCQ with answers PDF, chemical symbols Multiple Choice Questions (MCQ Quiz) for online college degrees. The Chemical Symbols Quiz App Download: Free learning app for chemical symbols, valency and chemical formula, reactants, redox reactions, relative molecular mass test prep for online colleges for science.

The Quiz: Variable valencies are used to indicate ions; "Chemical Symbols" App Download (Free) with answers greater than −1, greater than +1, with more than one valency to learn online IGCSE GCSE courses. Solve chemical formulae and equations questions and answers, Amazon eBook to download free sample for colleges that offer online degrees.

Chemical Symbols Questions and Answers PDF Download: Quiz 17

MCQ 81: Variable valencies are used to indicate ions

  1. greater than +1
  2. greater than −1
  3. with more than one valency
  4. none of above

MCQ 82: In CuO (Copper Oxide), the valency of Copper is

  1. +1
  2. +2
  3. −1
  4. −2

MCQ 83: In order to get Sodium Sulfite (Na2SO3) as product, the reactants shall be Sulfur Dioxide (SO2) and

  1. Na2CO3
  2. NaOH
  3. NaCl
  4. Na2CO3 and NaOH

MCQ 84: Old paintings became decolorized due to

  1. Lead Sulphide PbS
  2. Lead Sulphate PbSO4
  3. Lead Chloride PbCl2
  4. Lead Oxide PbO

MCQ 85: Relative molecular mass of Na2CO3 is

  1. 98
  2. 128
  3. 286
  4. 198

IGCSE O Level Chemistry Exam Prep Tests

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Chemical Symbols App (Android & iOS)

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O Level Chemistry App (Android & iOS)

O Level Chemistry App (Android & iOS)

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College Chemistry App (Android & iOS)