Chemistry NMDCAT MCQs Limiting and Excess Reactants
nmdcat.online July 2, 2026

34. A reaction between 2 moles of C₂H₄ and 2 moles of O₂ proceeds via C₂H₄ + 3O₂ → 2CO₂ + 2H₂O. The number of moles of water formed is

A. 2 moles
B. 1.33 moles
C. 4 moles
D. 3 moles

📝 Explanation

O₂ is limiting. H₂O formed = (2/3) × 2 = 1.33 mol.

📖 Additional Information

  • 2 moles
  • 1.33 moles
  • 4 moles
  • 3 moles

O₂ is limiting. H₂O formed = (2/3) × 2 = 1.33 mol.

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