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

nmdcat.online July 13, 2026

During the reaction 2H₂O₂ → 2H₂O + O₂, decomposition of 6 moles of hydrogen peroxide produces

A. 2 moles of O₂

B. 3 moles of O₂

✓

C. 4 moles of O₂

D. 6 moles of O₂

📝 Explanation

The balanced equation shows that 2 moles of H₂O₂ produce 1 mole of O₂. Hence, 6 moles produce 3 moles of oxygen gas. Concept tested: Stoichiometric relationships.

📖 Additional Information

2 moles of O₂
3 moles of O₂
4 moles of O₂
6 moles of O₂

The balanced equation shows that 2 moles of H₂O₂ produce 1 mole of O₂. Hence, 6 moles produce 3 moles of oxygen gas. Concept tested: Stoichiometric relationships.

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