1.

Zinc reacts with hot and concetrated H_(2)SO_(4) to give

Answer»

`H_(2)`
`SO_(2)`
`SO_(3)`
`H_(2)S`

Solution :Zink react with conc. And HOT `H_(2)SO_(4)` to GIVE `SO_(2)`
`underset("sulphuric acid")underset("(conc.)")(Zn+2H_(2)SO_(4))overset(DELTA)rarrunderset("zink sulphate")(ZnSO_(4))+2H_(2)O+underset("sulphur dioxide")(SO_(2))`


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