Question:medium

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

Updated On: Jan 13, 2026
  • Hydrogen gas and iron chloride are produced
  • Chlorine gas and iron hydroxide are produced
  • No reaction takes place
  • Iron salt and water are produced
Show Solution

The Correct Option is A

Solution and Explanation

The reaction between iron and hydrochloric acid produces iron(II) chloride and hydrogen gas, as depicted by the equation: Fe(s) + 2HCl(aq) → FeCl2(aq) + H2 ↑. This general reaction of a metal with an acid forms a salt and liberates hydrogen gas, which is identifiable by its characteristic pop when ignited.

Specifically, when iron filings react with dilute hydrochloric acid, ferrous chloride and hydrogen gas are generated according to the equation: Fe(s) + 2HCl(aq) → FeCl2(aq) + H2 ↑. Therefore, option (A) is the correct choice.

 


 

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