Question

(d) Displacement reaction.
3. What happens when dilute hydrochloric acid is added to
iron filings? 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

Explanation:

it is single displacement reaction.

as well as it produce hydrogen gas and iron chloride.

Answer 2

$\bigstar$ Solution:

(a) Hydrogen gas and Iron chloride are produced.

$\bigstar$ Explanation:

The Chlorine from Hydrogen chloride is displaced by the iron fillings to undergo the reaction as given below:

$2HCl + Fe$ → $FeCl_2 + H_2$