IGCSE O Level Chemistry Online Tests
Chemical Symbols MCQ (Multiple Choice Questions) PDF Download
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The MCQ: Valency of carbonate ion CO3− is; "Chemical Symbols" App Download (Free) with answers: -1; -2; -3; -4; to study online certificate courses. Practice Chemical Symbols Quiz Questions, download Apple eBook (Free Sample) for online colleges for teaching.
Chemical Symbols MCQs: Questions and Answers PDF Download
All are ionic compounds except
- AgCl
- HNO3
- NO2
- (NH4)2CO3
Valency of carbonate ion CO3− is
- -1
- -2
- -3
- -4
All are covalent compounds except
- NO2
- SO3
- SO2
- HNO3
The formula of hydrated Sodium Carbonate is
- Na(HCO3)2
- Na2CO3.(H2O)5
- Na2CO3.10H2O
- Na3CO4.10H2O
Variable valencies are used to indicate ions
- greater than +1
- greater than −1
- with more than one valency
- none of above
IGCSE O Level Chemistry Practice Tests
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