Question

What happens when dilute hydrochloric acid is added to iron fillings? Tick the correct answer.

• A. Hydrogen gas and iron chloride are produced
• B. Chlorine gas and iron hydroxide are produced
• C. No reaction takes place
• D. Iron salt and water are produced

Answer 1

Answer: (A)

Hydrogen gas and iron chloride are produced

Answer 2

Hydrogen gas and iron chloride are produced. The reaction is as follows:
Fe(s) + 2HCl(aq) → FeCl2(aq) + H2 ↑

The interaction between a metal and an acid results in the formation of the corresponding salt and the release of hydrogen gas. The gas produced, when ignited, produces a distinctive popping sound, confirming its identity as hydrogen gas.

The chemical reaction between iron filings and dilute hydrochloric acid yields ferrous chloride and hydrogen gas as products.
Fe(s) + 2HCl(aq) → FeCl2(aq) + H2 ↑
Hence the correct answer is option (A).