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IGCSE O Level Chemistry Practice Test 112

Valency and Chemical Formula MCQ Questions and Answers PDF - 112

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Valency & Chemical Formula MCQ with Answers PDF Download: Quiz 112

MCQ 556: The chemical formula of Sodium Sulfite is

A) Na2SO3
B) Na(SO4)2
C) Na2CO3.10H2O
D) NaH2PO4.H2O

MCQ 557: Examples of sublime substances do not include

A) solid carbon dioxide
B) ammonium salts
C) zinc
D) iodine

MCQ 558: Soluble Carbonates (CO3-2) are

A) Na2CO3
B) K2CO3
C) (NH4)2CO3
D) all of above

MCQ 559: Mixtures can be converted to compounds through

A) physical change
B) chemical change
C) high pressures
D) catalytic reactions

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

A) filtration
B) decanting
C) sublimation
D) distillation

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