Chemistry NMDCAT MCQs Moles and Avogadro's Numbers Moles and Avogadro’s Numbers
nmdcat.online July 2, 2026

During the reaction 2Al + 3Cl₂ → 2AlCl₃, complete reaction of 5 moles of aluminium requires

A. 5 moles Cl₂
B. 3 moles Cl₂
C. 7.5 moles Cl₂
D. 10 moles Cl₂

📝 Explanation

The mole ratio Al:Cl₂ is 2:3. Therefore, 5 moles of aluminium require 7.5 moles of chlorine.

📖 Additional Information

  • 5 moles Cl₂
  • 3 moles Cl₂
  • 7.5 moles Cl₂
  • 10 moles Cl₂

The mole ratio Al:Cl₂ is 2:3. Therefore, 5 moles of aluminium require 7.5 moles of chlorine.

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