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

In the reaction N₂ + 3H₂ → 2NH₃, a mixture of 2 moles of N₂ and 3 moles of H₂ is allowed to react. The limiting reactant in this mixture is

A. Nitrogen
B. Hydrogen
C. Ammonia
D. Both reactants are present in stoichiometric amounts

📝 Explanation

According to the balanced equation, 2 moles of N₂ require 6 moles of H₂. Since only 3 moles of H₂ are available, hydrogen is the limiting reactant.

📖 Additional Information

  • Nitrogen
  • Hydrogen
  • Ammonia
  • Both reactants are present in stoichiometric amounts

According to the balanced equation, 2 moles of N₂ require 6 moles of H₂. Since only 3 moles of H₂ are available, hydrogen is the limiting reactant.

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