Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES) Which of the following is copper (I) compound ? - Sarthaks eConnect

Which of the following is copper (I) compound ?

`[Cu(H_2O)_4]^(2+)`

`[Cu(CN)_4]^(3-)`

`[Cu(NH_3)_4]^(2+)`

All of these

Solution

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Best answer

`(Cu(CN)_4)^(3-).Cu^+`