What happens when zinc granules are treated with a dilute solution of H2SO4, HCl, HNO3, NaCl and NaOH, also write the chemical equations if a reaction occurs.

AcademicChemistryNCERTClass 10

When Zinc granules react with dil H2SO4 displacement reaction takes place leading to the formation of ZnSO4 liberating H2 gas
$Zn( s)+ H_2SO_4(aq)→ ZnSO_4 (aq)+H_2 (g)$

When Zinc granules react with dil HCl displacement reaction takes place leading to the formation of ZnCl2 liberating H2 gas
$Zn( s)+ HCl(aq) →ZnCl_2 (aq)+H_2 (g)$

When Zinc granules react with dil HNO3 it leads to the formation of Zinc nitrate evolving H2O and nitrous oxide.
$4Zn(s)+10 HNO_3(aq)→ 4Zn(NO_3)_2(aq) +5H_2O(i)+N_2O (g)$

When Zinc granules react with NaCl there will no reaction.

When Zinc granules react with NaOH solution
$Zn(s)+ NaOH(aq)→ Na_2ZnO_2 (aq)+H_2 (g)$
raja
Updated on 10-Oct-2022 13:27:10

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