Chemical Symbols MCQs Quiz Online PDF Download
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MCQs on Chemical SymbolsQuiz PDF Download
MCQ: All are ionic compounds except
MCQ: Valency of carbonate ion CO3? is
MCQ: All are covalent compounds except
MCQ: Formula of hydrated Sodium Carbonate is
MCQ: Variable valencies are used to indicate ions
- greater than +1
- greater than −1
- with more than one valency
- all of these