O Level Courses

Chapter 3: IGCSE O Level Chemistry Exam Tests

IGCSE O Level Chemistry MCQs - Chapter 3

Chemical Formulae and Equations MCQ (Multiple Choice Questions) PDF - 2

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Chemical Formulae & Equations Questions & Answers PDF Download: MCQ Quiz 2

MCQ 6: Valency of carbonate ion CO3 is

A) -1
B) -2
C) -3
D) -4

MCQ 7: All are covalent compounds except

A) NO2
B) SO3
C) SO2
D) HNO3

MCQ 8: The empirical formula is the

A) simplest formula
B) molecular formula
C) chemical formula
D) ionic exponential formula

MCQ 9: All of these radicals have a Valency of 2, except

A) SO4
B) CO3
C) NH4
D) MgCO3

MCQ 10: The formula of hydrated Sodium Carbonate is

A) Na(HCO3)2
B) Na2CO3.(H2O)5
C) Na2CO3.10H2O
D) Na3CO4.10H2O

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Chemical Formulae & Equations App (Android & iOS)

Chemical Formulae & Equations App (Android & iOS)

O Level Chemistry App (Android & iOS)

O Level Chemistry App (Android & iOS)

10th Grade Chemistry App (Android & iOS)

10th Grade Chemistry App (Android & iOS)

SAT Chemistry App (Android & iOS)

SAT Chemistry App (Android & iOS)