IGCSE O Level Chemistry MCQs - Chapter 3
Chemical Formulae and Equations Quiz Questions & Answers PDF Download - 31
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Chemical Formulae & Equations Exam Questions and Answers PDF Download: Test 31
Formula Ca(OH)2 is of
- Calcium Hydrogen per oxide
- calcium hydroxy acids
- calcium hydrogen peroxide
- calcium hydroxide
In H2SO4, the chemical composition of oxygen is
- 0.1111
- 0.5032
- 0.6531
- 0.3265
In Na2CO3.10H2O, the highest percentage composition is of
- sodium
- oxygen
- water
- carbon
Chemical composition of a compound
- fixed
- not fixed
- variable
- none of above
All are covalent compounds except
- SO3
- SO2
- H2SO4
- HCl
IGCSE O Level Chemistry Mock Tests
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