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In the equilibrium reaction:<br/>2CO(g) + O₂(g) ⇌ ...

In the equilibrium reaction:<br/>2CO(g) + O₂(g) ⇌ 2CO₂(g)<br/>Increasing oxygen concentration causes equilibrium to:
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  • A Shift toward carbon dioxide
  • B Stop reacting completely
  • C Lose gaseous molecules
  • D Shift toward carbon monoxide
Correct Answer: Option A
Explanation:
Adding oxygen increases reactant concentration, so equilibrium shifts right to form more carbon dioxide.

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