Chemistry NMDCAT MCQs Moles and Avogadro's Numbers Moles and Avogadro’s Numbers

nmdcat.online July 13, 2026

During the reaction N₂ + 3H₂ → 2NH₃, complete reaction of 2 moles of nitrogen requires

A. 3 moles of H₂

B. 4 moles of H₂

C. 6 moles of H₂

✓

D. 2 moles of H₂

📝 Explanation

From the equation, 1 mole of N₂ reacts with 3 moles of H₂. Therefore, 2 moles of N₂ require 6 moles of H₂. Concept tested: Stoichiometric mole calculations.

📖 Additional Information

3 moles of H₂
4 moles of H₂
6 moles of H₂
2 moles of H₂

From the equation, 1 mole of N₂ reacts with 3 moles of H₂. Therefore, 2 moles of N₂ require 6 moles of H₂. Concept tested: Stoichiometric mole calculations.

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