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A coordiante complex contains Co^3, Cl ...

A coordiante complex contains `Co^3, Cl ` and `NH_3` . When dissolved in water , one mole of this complex gave a total of 3 moles of ions . The complex is

A

` [Co(NH_3)_6]Cl_3`

B

`[Co(Nh_3)_5Cl]Cl_2`

C

`[Co(NH_3)_4]Cl_2]Cl`

D

`[Co(NH_3)_3 Cl_3]`

Text Solution

Verified by Experts

The correct Answer is:
(b)
If a complex forms three ions , then it contains `2Cl` ions outside the cooordination spere.
`[Co(NH_3)_5Cl]Cl_2 rightarrow [ Co(NH_3) _5]^2+ +2Cl^-`
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