1.

Powdered silver ore is rated with NaCN solution and all bubled through the mixture to give

Answer»

`AgCN`
AG
`Ag(CN)_(2)`
`Na[Ag(CN)_(2)]`

Solution :Powdered silver ore is treated with NaCN solution and air is bubbled through the MIXTURE to GIVE
`4g_(2)+4NaCN hArr 2NA[Ag(CN)_(2)]+Na_(2)S`
`4Na_(2)S+SO_(2)+2H_(2) to 2Na_(2)+4NaOH+2S`


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