When an active metal like iron reacts with a dilute acid like hydrochloric acid, a single displacement reaction occurs. The metal displaces hydrogen from the acid, forming a metal salt and releasing hydrogen gas. The chemical equation is: Fe(s) + 2HCl(aq) → FeCl2(aq) + H2(g).
What happens when dilute hydrochloric acid is added to iron fillings?
Asked in WBCS Main Paper 4 2021 · Topic: Acid, Base and Salt (Reactions of Acids and Bases (Neutralization, reaction with metals, metal carbonates/bicarbonates))
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Answer: A. Hydrogen gas and iron chloride are produced.
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