In the presence of an active metal, do bases usually release hydrogen gas?
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here is your ans...
yes hydrogen gas is released when bases react with an active metal
Zn +2NaOH -----> Na2ZnO2 + H2
however such reaction is not possible with all metals
hope this will help you
hp780:
i fount it on quora
but in my opinion open does not replace hydrogen because it is less reactive than hydrogen
copper
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0
On reacting an active element with bases hydrogen gas is generally not evolved.
EXCEPTION: Zn + 2NaOH --> Na2ZnO2+ H2
The same reaction happens with aluminium.
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