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NEET 2017
Exam
NEET
Year
2017
Subject
Chemistry
Chapter
Coordination Compounds

NEET 2017 · Chemistry · Coordination Compounds

The correct order of the stoichiometries of AgCl formed when AgNO _...

The correct order of the stoichiometries of AgClAgCl formed when AgNO3{AgNO}_{3} is treated in excess with the complexes: CoCl3.6NH3,CoCl3.5NH3,CoCl3.4NH3{CoCl}_{3} . 6{NH}_{3}, {CoCl}_{3} . 5{NH}_{3}, {CoCl}_{3} . 4{NH}_{3}, respectively, is:

Options

  1. A1AgCl,3AgCl,2AgCl1AgCl, 3AgCl, 2AgCl
  2. B3AgCl,1AgcCl,2AgCl3AgCl, 1AgcCl, 2AgCl
  3. C3AgCl,2AgCl,1AgCl3AgCl, 2AgCl, 1AgCl
  4. D2AgCl,3AgCl,1AgCl2AgCl, 3AgCl, 1AgCl

Correct answer

C. 3AgCl,2AgCl,1AgCl3AgCl, 2AgCl, 1AgCl

Step-by-step solution

[Co(NH3)6]Cl3→AgNO33moles[ Co{( {NH}_{3} )}_{6} ] {Cl}_{3}\mathop{\to}_{}^{{AgNO}_{3}}3moles of AgCl

[Co(NH3)5Cl]Cl2→AgNO32moles[ Co{( {NH}_{3} )}_{5}Cl ]{Cl}_{2}\mathop{\to}_{}^{{AgNO}_{3}}2molesof AgClAgCl

[Co(NH3)4Cl2]Cl→AgNO31mole[ Co{( {NH}_{3} )}_{4}{Cl}_{2} ]Cl\mathop{\to}_{}^{{AgNO}_{3}}1mole of AgCl

The complexes are respectively \left[Co{\left({NH}_{3}\right)}_{6}\right]{Cl}_{3}, \left[Co{\left({NH}_{3}\right)}_{5}Cl\right]{Cl}_{2} and \left[Co{\left({NH}_{3}\right)}_{4}{Cl}_{2}\right]Cl.

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