Give below are the symbols of some elements: Mg, K, Zn, H, Ag, Cu, Al, Fe
Choose from the above.
The metal that can decompose boiling water to liberate hydrogen.

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Solution

Middle reactive metals such as Magnesium(Mg), Aluminum(Al), and Iron(Fe) react with steam to liberate hydrogen.
Mg + H₂O → MgO + H₂
Al + H₂O → Al₂O₃ + H₂
Fe + H₂O → Fe₂O₃ + H₂

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