What happens when zinc granules are treated with dilute solution of `H_(2)SO_(4), HCl, HNO_(3), NaCl` and NaOH ? Also write the chemical equations if reaction occurs.

Explanation

The reactions of zinc granules with various reagents are as follows
`(i) "Dilute "H_(2)SO_(4)" "underset("Zinc")(Zn(s))+underset(underset("acid")("Sulphuric"))(H_(2)SO_(4)(aq)) to underset("Zinc sulphate")(ZnSO_(4)(aq))+underset("Hydrogen")(H_(2)(g))uarr`
`(ii) "Dilute HCl"" "underset("Zinc")(Zn(s))+underset(underset("acid")("Hydrochloric"))(2HCl(aq)) to underset("Zinc chloride")(ZnCl_(2)(aq))+underset("Hydrogen")(H_(2)(g))`
(iii)`"Dilute "NHO_(3)" Dilute "NHO_(3)`is an oxidising acid therefore, its reaction with a metal (e.g., Zn) is defferent than other dilute acids.
`underset("Zinc")(4Zn(s))+underset(underset("acid")("Nitric"))(10 HNO_(3)(aq)) to underset("Zinc nitrate")(4Zn(NO_(3))_(2)(aq))+underset("Ammonium nitrate")(NH_(4)NO_(3)(aq))+underset("Water")(3H_(2)O(l))`
(iv) NaCl solution Reaction does not take place
`underset("Zinc")(Zn(s))+underset("Sodium chloride")(NaCl(aq)) to "No reaction"`
(v) NaOH solution
`underset("Zinc")(Zn(s))+underset("Sodium hydroxide")(2NaOH(aq)) to underset(underset("zincate")("Sodium"))(Na_(2)ZnO_(2))+underset("Hydrogen")(H_(2)(g))`
This hydrogen gas is evolved with `H_(2)SO_(4)`, HCl and NaCH, nitrous oxide gas is evolved with dilute `HNO_(3)` and no reaction takes place with solution.