Out of Fe, Mg and Ag, which metal liberates H2 from acids?
A
Fe
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B
Mg
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C
Fe, Mg
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D
Ag
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Solution
The correct option is C Fe, Mg Both Magnesium(Mg) and Iron(Fe) are present above Hydrogen in the electrochemical series. Hence both Mg and Fe can displace hydrogen from acids. Option C is correct.