A. Carbon (II) oxide
B. Carbon (IV) oxide
C. Oxygen
D. Nitrogen
Correct Answer:
Option C – Oxygen
Explanation
2CO + O2 → 2CO2
50cm³ → 25cm³
20% X 150 = 30cm³
30cm³ is the volume of oxygen available for the reactions. But only 25 cm³ is required; therefore O2 is in excess
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![What volume of hydrogen would be left over when 300cm3 of oxygen and 1000cm of hydrogen are exploded in a sealed tube? [2H2(g) + O2(g) → 2H2 Og]](https://erudites.ng/wp-content/plugins/contextual-related-posts/default.png "What volume of hydrogen would be left over when 300cm3 of oxygen and 1000cm of hydrogen are exploded in a sealed tube? [2H2(g) + O2(g) → 2H2 Og]")
