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# 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.

Option - a
As we all know

$$Acid + Metal \rightarrow Salt + Hydrogen$$

Therefore when Dilute Hydrochloric acid (Acid) is added to Iron Fillings (Metal)
Iron Chloride (Salt) is formed with Hydrogen (Gas).

$$2HCl + Fe \rightarrow FeCl_{2} + H_{2}$$