Give Reason:
Dilute hydrochloric acid reacts with magnesium liberating hydrogen, but the same is not liberated when the acid reacts with lead.

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Solution

Lead reacts slowly with hydrochloric acid to release hydrogen but the reaction eventually stops. Lead chloride formed is insoluble and coats the metal and forms a barrier that does not allow the acid to come in contact with the metal.

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Similar questions

Zinc liberates hydrogen gas when reacted with dilute hydrochloric acid, whereas copper does not. Why?

Assertion : Copper reacts with hydrochloric acid and liberates hydrogen from the solution of dilute hydrochloric acid.

Reason : Hydrogen is present below copper in the electrochemical series.

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