What happens when dilute hydrochloric acid is added to iron fillings?

Correct option is A

The correct answer is (a) Hydrogen gas and iron chloride are produced.
· When dilute hydrochloric acid (HCl) is added to iron filings (Fe), a chemical reaction takes place.
· The reaction can be represented as: Fe (s) + 2HCl (aq) → FeCl₂ (aq) + H₂ (g)
· In this reaction:
· Iron chloride (FeCl₂) is formed as the iron reacts with hydrochloric acid.
· Hydrogen gas (H₂) is released as a product, which can be observed as bubbles forming in the solution.
· This is a typical example of a metal (iron) reacting with an acid (hydrochloric acid) to produce a salt (iron chloride) and hydrogen gas.