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1 mark
Which equation shows a reduction of the underlined substance?
C + O2 → CO2
C + CO2 → 2CO
Mg + H2O → MgO + H2
NaOH + HCl → NaCl + H2O
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Redox (Cambridge (CIE) IGCSE Combined Science: Chemistry): Exam Questions
Exam code: 0653
1 min1 question