Q4 of 16 Page 61

Which substance liberates hydrogen when reacts with metals?

substances like acid, alkali, and water produces Hydrogen (H2) when they react with metals. However, Not all of the metals react with the all acids, bases and water. However, Zinc reacts with all of these three.


Acid reaction with Metals


Zn+2HCl → ZnCl2 +H2


Alkali reaction with Metals


Zn+2NaOH → Na2ZnO2 + H2


Water reaction with Metals


Zn+ H2O → ZnO + H2


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