Iron exposed to moist air for a long time does not liberate hydrogen g – InterviewSolution

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1.	Iron exposed to moist air for a long time does not liberate hydrogen gas from dilute acids like HCI and H_2SO_4.Explain.
Answer» Solution :When IRON is expresed to moist AIR for a long time rust FORMATION takes place, i.e., iron GETS converted to `Fe_2O_3.XH_2O` and hence, iron does not LIBERATE hydrogen gas form dil acids like HCI and `H_2SO_4`.

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