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Chemistry NMDCAT MCQs Moles and Avogadro's Numbers Moles and Avogadro’s Numbers
nmdcat.online July 2, 2026

For the complete combustion of propane, C₃H₈ + 5O₂ → 3CO₂ + 4H₂O, the oxygen required for complete combustion of 2 moles of propane is

A. 5 moles
B. 10 moles
✓
C. 2.5 moles
D. 15 moles

📝 Explanation

One mole of propane requires 5 moles of oxygen. Therefore, 2 moles require 10 moles of oxygen.

📖 Additional Information

  • 5 moles
  • 10 moles
  • 2.5 moles
  • 15 moles

One mole of propane requires 5 moles of oxygen. Therefore, 2 moles require 10 moles of oxygen.

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