Question

what happens when dilute hydrochloric acid is added to iron filings​

Answer 1

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• Right Option is a. Hydrogen gas iron chloride are produced

$\sf \colorbox{pink} {Explanation:}$

chloride & hydrogen gas is produced. In this reaction iron displaces hydrogen from hydrochloric acid to form iron chloride & hydrogen gas this reaction is a single displacement reaction.

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Answer 2

a) hydrogen and iron chloride are produced