IGCSE O Level Chemistry MCQs – Mock Test 112

Valency and Chemical Formula MCQ with Answers PDF Download – Test 112

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Valency & Chemical Formula MCQ – Mock Test 112 PDF Download

MCQ 556: The chemical formula of Sodium Sulfite is:

Na₂SO₃
Na(SO₄)₂
Na₂CO₃.10H₂O
NaH₂PO₄.H₂O

MCQ 557: Examples of sublime substances do not include:

solid carbon dioxide
ammonium salts
zinc
iodine

MCQ 558: Soluble Carbonates (CO₃^-2) are:

Na₂CO₃
K₂CO₃
(NH₄)₂CO₃
all of above

MCQ 559: Mixtures can be converted to compounds through:

physical change
chemical change
high pressures
catalytic reactions

MCQ 560: An easy way to separate soluble and insoluble solids is:

filtration
decanting
sublimation
distillation

Valency & Chemical Formula MCQs App & eBook – IGCSE O Level Chemistry Entrance Tests

Ions and Ionic Bonds MCQs

Relative Molecular Mass MCQs

Evaporation MCQs

Distillation: Purification Process MCQs

Pure Substances and Mixtures MCQs

Acids: Properties and Reactions MCQs

Chemical formulas MCQs

Atoms and Elements MCQs

Redox Reactions MCQs

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