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O-LevelChemistryAcids, Bases & Salts5070/11 · May/June 2012 · Q251 Mark

Which reaction occurring in the blast furnace is an acid base reaction?

A+ CO2 → 2CO
B+ O2 → CO2
CCaO + SiO2 → CaSiO3
DFe2O3 + 3CO → 2Fe + 3CO2

✓ Correct answer

C: CaO + SiO2 → CaSiO3

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About this question

Topic
Acids, Bases & Salts, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source
O-Level Chemistry, May/June 2012 Paper 1 Variant 1, question 25.

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