IGCSE O Level Chemistry Practice Test 17
Chemical Symbols Quiz Questions and Answers PDF Download - 17
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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.
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Chemical Symbols Questions and Answers PDF Download: MCQ 17
Variable valencies are used to indicate ions
- greater than +1
- greater than −1
- with more than one valency
- none of above
In CuO (Copper Oxide), the valency of Copper is
- +1
- +2
- −1
- −2
In order to get Sodium Sulfite (Na2SO3) as product, the reactants shall be Sulfur Dioxide (SO2) and
- Na2CO3
- NaOH
- NaCl
- Na2CO3 and NaOH
Old paintings became decolorized due to
- Lead Sulphide PbS
- Lead Sulphate PbSO4
- Lead Chloride PbCl2
- Lead Oxide PbO
Relative molecular mass of Na2CO3 is
- 98
- 128
- 286
- 198
IGCSE O Level Chemistry Exam Prep Tests
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