How does sulphuric acid react with metals at various conditions.

Explanation

Reaction with metals:
(i) Sulphuric acid reacts with metals and gives different product depending on the reactants and reacting condition.
(ii) Dilute sulphuric acid reacts with metals like tin, aluminium, zinc to give corresponding sulphates.
`Zn+H_(2)SO_(4) rarr ZnSO_(4)+H_(2) uarr`
`2Al+3H_(2)SO_(4) rarr Al_(2)(SO_(4))_(3)+3H_(2)uarr`
Hot concentrated sulphuric acid reacts with copper and lead to give the respective sulphates as shown below.
`Cu+2H_(2)SO_(4) rarr CuSO_(4) +2H_(2)O+SO_(2) uarr`
`Pb+2H_(2)SO_(4) rarr PbSO_(4)+2H_(2)O+SO_(2)uarr`
(iv) Sulphuric acid doesn't react with nobled metals like gold, silver and platinum.