1.

The correct option(s) to distinguish nitrate salts of Mn^(2+) and Cu^(2+) taken separately is (are) : -

Answer»

` Mn^(2+)` SHOWS the characteristic green colour in the FLAME test
Only `CU^(2+)` shows the FORMATION of precipitate by passing `H_(2)S` in acidic medium
Only `Mn^(2+)` shows the formation of precipitate by passing `H_(2)S` in faintly basic medium
`Cu^(2+)//Cu` has higher reduction potential than `Mn^(2+)//Mn` (measured under similar CONDITIONS)

Answer :B::D


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