1.

Pb + Conc.HNO_(3) gives

Answer»

`Pb(NO_(3))_(2)+NO_(2)`
`PbNO_(3)+NO`
`Pb(NO_(3))_(4)+NO_(3)`
`Pb(NO_(3))_(3)+N_(2)O`

SOLUTION :`HNO_(3)` is the BEST solvent for lead.
`Pb+4HNO_(3)("conc.")toPb(NO_(3))_(2)+2NO_(2) +2H_(2)O`


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