O-LevelChemistryMetals & Reactivity5070/11 · May/June 2022 · Q261 Mark
Some types of chemical reaction are listed. 1 acid-base 2 combustion 3 redox Which types of reaction occur in a blast furnace during the extraction of iron?
A1, 2 and 3
B1 and 2 only
C1 and 3 only
D2 and 3 only
✓ Correct answer
A: 1, 2 and 3
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