A. lead oxide
B. Magnesium oxide
C. Copper oxide
D. Tin oxide
Correct Answer:
Option B – Magnesium oxide
Explanation
The oxides of Potassium, Sodium, Calcium, and Magnesium are not reduced when they react with carbon and hydrogen.
A. lead oxide
B. Magnesium oxide
C. Copper oxide
D. Tin oxide
Correct Answer:
Option B – Magnesium oxide
Explanation
The oxides of Potassium, Sodium, Calcium, and Magnesium are not reduced when they react with carbon and hydrogen.
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