Q. Which gas is evolved when zinc reacts with dilute hydrochloric acid?

  • (A) Oxygen
  • (B) Hydrogen
  • (C) Nitrogen
  • (D) Chlorine
✅ Correct Answer: (B) Hydrogen
Explanation: Zn + 2HCl → ZnCl₂ + H₂. Hydrogen gas is evolved during the reaction.

Published by Jyoti ⭐ 1.79K Points at 15-Jun-2026 01:41 pm in Chemistry

Explanation by: Jyoti
Zn + 2HCl → ZnCl₂ + H₂. Hydrogen gas is evolved during the reaction.

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