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IGCSE O Level Chemistry Certification Exam Tests

IGCSE O Level Chemistry Practice Test 17

Chemical Symbols Quiz Questions and Answers PDF Download - 17

The Chemical Symbols Quiz Questions and Answers PDF (Chemical Symbols Quiz with Answers PDF e-Book) download Ch. 3-17 to prepare IGCSE O Level Chemistry Practice Tests. Solve Chemical Formulae and Equations MCQ with answers PDF, Chemical Symbols Multiple Choice Questions (MCQ Quiz) for online colleges for science. 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 colleges that offer online degrees.

The Quiz MCQ: 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; for online colleges for science. Learn Chemical Formulae and Equations Questions and Answers, Apple eBook to download free sample to learn online IGCSE GCSE courses.

Chemical Symbols Questions and Answers PDF Download: MCQ 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)

Chemical Symbols App (Android & iOS)

O Level Chemistry App (Android & iOS)

O Level Chemistry App (iOS & Android)

SAT Chemistry App (Android & iOS)

SAT Chemistry App (Android & iOS)

A level Chemistry App (Android & iOS)

A level Chemistry App (iOS & Android)