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Question

Identify the type of reaction when dilute hydrochloric acid is added to iron filings.


A

Decomposition Reaction

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B

Combination Reaction

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C

Displacement Reaction

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D

Double Displacement Reaction

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Solution

The correct option is C

Displacement Reaction


In the given reaction, hydrochloric acid dissociates. The released chloride ions oxidize the iron molecules. The hydrogen ions are reduced to hydrogen gas. Therefore, hydrogen gas and iron chloride are produced.

Fe(s) + 2HCl(aq) FeCl2(aq) + H2(g)


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