Chemistry NMDCAT MCQs
Limiting and Excess Reactants
nmdcat.online
July 2, 2026
A mixture of 1.5 moles of N₂ and 4 moles of H₂ is used for ammonia synthesis (N₂ + 3H₂ → 2NH₃). The maximum number of moles of NH₃ that can be produced is
A.
4 moles
B.
2.67 moles
✓
C.
3 moles
D.
2 moles
📝 Explanation
H₂ is limiting. NH₃ formed = (2/3) × 4 = 2.67 mol.
📖 Additional Information
4 moles
2.67 moles
3 moles
2 moles
H₂ is limiting. NH₃ formed = (2/3) × 4 = 2.67 mol.
