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The correct order of the stoichiometries...

The correct order of the stoichiometries of `AgCl` formed when `AgNO_3` in excess is treated with the complexes: `CoCl_(3).6NH_3, CoCl_(3).5NH_3, CoCl_(3). 4NH_3` respectively is:

A

(a) `3AgCl, 1 AgCl, 2AgCl`

B

(b) `3AgCl, 2AgCl, 1AgCl`

C

(c) `2AgCl, 3AgCl, 1AgCl`

D

(d) `1 AgCl, 3AgCl, 2AgCl`

Text Solution

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The correct Answer is:
B
Coordination no. 6 is to be maintained
`[Co(NH_3)_6]Cl_3overset(AgNO_3)rarr3mol AgCl`
`[Co(NH_3)_5Cl]Cl_2overset(AgNO_3)rarr2 mol AgCl`
`[Co(NH_3)_4Cl_2]Cloverset(AgNO_3)rarr1 mol AgCl`
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