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

The volume of chlorine gas at STP required to completely react with 11.2 dm³ of hydrogen gas at STP according to H₂ + Cl₂ → 2HCl is

A. 5.6 dm³
B. 11.2 dm³
✓
C. 22.4 dm³
D. 33.6 dm³

📝 Explanation

The volume ratio H₂:Cl₂ is 1:1. Therefore, 11.2 dm³ of hydrogen requires 11.2 dm³ of chlorine.

📖 Additional Information

  • 5.6 dm³
  • 11.2 dm³
  • 22.4 dm³
  • 33.6 dm³

The volume ratio H₂:Cl₂ is 1:1. Therefore, 11.2 dm³ of hydrogen requires 11.2 dm³ of chlorine.

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