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Question
What happens when a metal reacts with dilute hydrochloric acid? Explain with the help of an example.
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Solution
Metals react with dilute hydrochloric acid to give metal chlorides and hydrogen gas.
Sodium metal reacts violently with dilute hydrochloric acid to form sodium chloride and hydrogen.
\[\ce{\underset{Sodium}{2Na_{(s)}} + \underset{Hydrochloric acid}{2HCl_{(aq)}} -> \underset{Sodium chlordide}{2NaCl_{(aq)}} + \underset{Hydrogen}{H2_{(g)}}}\]
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