1.

The salts of Cu in +1 oxidation state are unstable becauseA. `Cu^(+)` has `3d^10` configurationB. `Cu^+` disproportionates easily to Cu(0) and `Cu^(2+)`C. `Cu^+` disproportionates easily to `Cu(2+)` and `Cu^(2+)`D. `Cu^+` is easily reduced to `Cu^(2+)`

Answer» Correct Answer - B
`Cu^+` ions undergo disproportionation .
`2Cu^(+) to Cu^(2+) + Cu`


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