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Question
A metal which produces hydrogen on reacting with alkali as well as with acid.
Options
Iron
Magnesium
Zinc
Copper
Solution
Zinc
Explanation:
With base: \[\ce{Zn + 2NaOH -> \underset{\text{Sodium zincate (Colourless)}}{Na2ZnO2 + H2}}\]
With acid: \[\ce{Zn + 2HCl -> ZnCl2 + H2}\]
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