IGCSE O Level Chemistry Entrance Exam: Practice Test 22 (Chapter 3)

Chemical Formulae and Equations Multiple Choice Questions (MCQ) PDF Download - 22

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Chemical Formulae & Equations Test Questions and Answers PDF Download: MCQ 22

MCQ: 106

Metal that burns even more brightly than Magnesium (Mg) is

zinc
mercury
zirconium
diamond

MCQ: 107

Sulfite ion can be written symbolically as

SO₄⁻²
SO₃⁻²
SO₄⁻³
S⁻²

MCQ: 108

Formula K₂SO₄ indicates that

2 ions of Kalium are combined with 4 molecules of oxygen
2 ions of Kalium are combined with 1 sulfate ion
2 ions of potassium are combined with one sulfur and 4 oxygen molecules
1 ion of potassium is combined with 1 sulfate ion

MCQ: 109

The formula of carbonic acid indicates that for

each ion of Carbon, two ions of hydrogen are required
each ion of H, two carbonate ions are required
carbonate ion, two ions of hydrogen are required
two carbonate ions, three ions of Hydrogen are required

MCQ: 110

Valency of Ferrum can be

2 or 4
4 or 6
3 or 5
2 or 3

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