Question

Give some examples for evolution of gas

Answer 1

some ex of evolution of gas are :-

1) Zn + 2HCl --> ZnCl2 + H2

2) Zn + H2SO4 --> ZnSO4 + H2

3) 2KCIO3 + 2KCI+3O2

4) FeS + H2SO4 --> FeSO4 + H2S

5) Na2CO3 + H2SO4 --> Na2SO4 + H2O + CO2

hope this will help uh ...
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