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When 0.1 mol of a cobalt complex is trea...

When `0.1` mol of a cobalt complex is treated with excess of `AgNO_(3)` solution, `28.7g` of `AgCl` is precipitated. The formula of the complex is

A

`[Co(NH_(3))_(3)Cl_(3)]`

B

`[Co(NH_(3))_(6)]Cl_(3)`

C

`[Co(NH_(3))_(5)Cl]Cl_(2)`

D

`[Co(NH_(3))_(4)Cl_(2)]Cl.(Ag=108,Cl=35.5)`

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