1.

The formula of the complex, tris (ethylenediamine) cobalt(III) sulphate is :

Answer»

`[CO(en)_(3)SO_(4)]`
`[Co(en)_(3)SO_(4)]`
`[Co(en)_(3)]_(2)(SO_(4))_(3)`
`[Co(en)_(3)SO_(4)]_(3)`

ANSWER :C


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