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  • How to solve this problem- - Coordination compounds: - NEET

An excess of AgNO_{3} is added to 100 mL of a 0.01 M solution of dichlorotetraaquanchrmium (III) chloride. The number of moles of AgCl precipitated would be:

  • Option 1)

    0.002

  • Option 2)

    0.003

  • Option 3)

    0.01

  • Option 4)

    0.001

 

Answers (1)

best_answer

As we learnt in

Coordination Sphere -

The central atom/ion and the ligands attached to metal are enclosed in square bracket and this collectively termed as coordination sphere

- wherein

eg:

K_{4}\left [ Fe\left ( CN \right )_{6} \right ]

 K^{+} \rightarrow Counter ion

\left [ Fe\left ( CN \right )_{6} \right ]^{4-} \rightarrow  Coordination sphere

 

 

 Dichlaratetra aqua chroninium (iii) chloride is [G(H2O)4Cl2]Cl on ionization it will give 1 chloride ion.

[G(H2O)4Cl2]Cl \rightarrow [Cr(H2O)4Cl2]+ + Cl-

 

t=0        0.001              0                0

t=\infty        0                   0.001         0.001

Reaction with AgCl  precipitated = 0.001

AgCl precipated =0.001


Option 1)

0.002

This option is incorrect

Option 2)

0.003

This option is incorrect

Option 3)

0.01

This option is incorrect

Option 4)

0.001

This option is correct

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Plabita

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