Question

4. What happens when dilute hydrochloric acid is added to iron filings? Mark (1)
at the correct answer from the following:
(a) Hydrogen gas and iron chloride are produced and is classified as a
displacement reaction.
(b) Iron chloride and chlorine gas are produced and is classified as a
decomposion reaction.
(c) Iron hydroxide and water are produced and is classified as a combination
reaction.
(d) No reaction takes place but is classified as a double displacement reaction.​

Answer 1

Answer:

(a) Hydrogen gas and iron chloride are produced and is classified as a displacement reaction

Answer 2

When dilute Hydrochloric acid is added to iron filings, iron chloride & hydrogen gas is produced. The iron displaces hydrogen from hydrochloric acid to form iron (II) chloride & hydrogen gas. This is a single displacement reaction.

Thus the answer is option

(A) Hydrogen gas and iron chloride are produced.