What happens when zinc granules are treated with dilute solution of H2SO4 , HCl, HNO3, NaCl and NaOH, also write the chemical equations if reaction occurs
The reaction of Zn granules with
(a) Dilute H2SO4
Zn(s) +H2SO4(aq) → ZnSO4(aq) + H2(g)
(b) Dilute HCl
Zn(s) + 2HCl(aq) → ZnCl2(aq) + H2(g)
(c) Dilute HNO3
Reaction with dilute HNO3 is different as compared to other acids because nitric acid is an oxidising agent and it oxidises H2 gas evolved to H2O.
4Zn(s) + 10HNO3(aq) → 4Zn(NO3)2(aq) + 5H2O + N2O(g)
(d) NaCl solution
Zn(s) + NaCl(aq) → Noreaction
(e) NaOH solution
Zn(s) + NaOH(aq) → NaZnO2 (aq) + H2(g)
Sodium Zincate
