Question

What happens when zinc granules are treated with dilute solution of H2SO4 , HCl, HNO3 , NaCl and NaOH, also write the chemicalequations if reaction occursNCERT Class XScience - Exemplar ProblemsChapter_Chemical Reactions And Equations

Answer 1

Zn + dil.H2SO4 gives ZnSO4 and liberates H2 gas.
Zn + 2 dil. HCl gives ZnCl2 and liberates H2 gas.
Zn + 2 dil. HNO3 gives Zn(NO3)2 and liberates H2 gas.
Zn + 2NaOH gives sodium zincate(Na2ZnO2) and liberates H2 gas.(Explanation: Zn is a amphoteric metal)
Zn + NaCl (No reaction)