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

nmdcat.online July 13, 2026

During the reaction 2Al + 3Cl₂ → 2AlCl₃, complete reaction of 6 moles of chlorine gas produces

A. 2 moles of AlCl₃

B. 4 moles of AlCl₃

✓

C. 6 moles of AlCl₃

D. 9 moles of AlCl₃

📝 Explanation

The balanced equation shows that 3 moles of Cl₂ produce 2 moles of AlCl₃. Therefore, 6 moles of Cl₂ produce 4 moles of AlCl₃. Concept tested: Mole ratio from a balanced equation.

📖 Additional Information

2 moles of AlCl₃
4 moles of AlCl₃
6 moles of AlCl₃
9 moles of AlCl₃

The balanced equation shows that 3 moles of Cl₂ produce 2 moles of AlCl₃. Therefore, 6 moles of Cl₂ produce 4 moles of AlCl₃. Concept tested: Mole ratio from a balanced equation.

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