The correct order of the stoichiometries of AgCl formed when in excess is treated with the complexes: respectively is [2017]

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Solution

Q.
The correct order of the stoichiometries of AgCl formed when ${AgNO}_{3}$ in excess is treated with the complexes: ${CoCl}_{3} . 6 {NH}_{3}, {CoCl}_{3} . 5 {NH}_{3}, {CoCl}_{3} . 4 {NH}_{3}$ respectively is [2017]

1 3AgCl, 1AgCl, 2AgCl

2 3AgCl, 2AgCl, 1AgCl

3 2AgCl, 3AgCl, 2AgCl

4 1AgCl, 3AgCl, 2AgCl

Ans.
(2)

$[{Co(NH}_{3})_{6}] {Cl}_{3} + 3 {AgNO}_{3} \to 3 AgCl ↓ + [{Co(NH}_{3})_{6}] {({NO}_{3})}_{3}$

$[{Co(NH}_{3})_{5} Cl] {Cl}_{2} + 2 {AgNO}_{3} \to 2 AgCl ↓ + [{Co(NH}_{3})_{5} Cl] {({NO}_{3})}_{2}$

$[{Co(NH}_{3})_{4} {Cl}_{2}] Cl + {AgNO}_{3} \to AgCl ↓ + [{Co(NH}_{3})_{4} {Cl}_{2}] {NO}_{3}$

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