Question

What happens when dil. hydrochloric acid is added to iron filings? Choose 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

a) Hydrogen gas and iron chloride are produced.

Answer 2

a) Hydrogen gas and Iron chloride are produced.

Explanation:

The Chlorine from Hydrogen chloride is displaced by the Iron fillings to undergo the following reaction.

The Chlorine from Hydrogen chloride is displaced by the Iron fillings to undergo the following reaction.2HCl + Fe → FeCl2 + H2

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