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The correct trend of rate of electron transfer reaction between the complexes [CoC NH3),5X]2+/ [Co(H2O)6]2+ with variation of X is
  • a)
    Cl- < Br- < SO42-
  • b)
    Br- < Cl- < SO42-
  • c)
    SO42- < Cl- < Br-
  • d)
    SO42- < Br< CI-
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
The correct trend of rate of electron transfer reaction between the co...
The electron transfer between complexes [Co(NH3,)5X]2+ / [Co(H2O6 )2+ is a type o f inner sphere mechanism.
The typical bridging ligands involved in such reaction are capable of conveying the electron and contain more than one lone pair of electrons.
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The correct trend of rate of electron transfer reaction between the co...
The correct trend of rate of electron transfer reaction between the complexes [Co(NH3)5X]2- / [Co(H2O)6]2+ with variation of X is:

a) Cl- > Br- > I-

This is because the rate of electron transfer in a redox reaction depends on the strength of the oxidizing and reducing agents involved. In this case, the [Co(NH3)5X]2- complex is the oxidizing agent, while the [Co(H2O)6]2+ complex is the reducing agent.

As we move down the halogen group, the electronegativity and size of the halogen atoms increase. This results in a decrease in the strength of the Co-X bond and an increase in the stability of the [Co(NH3)5X]2- complex. Therefore, the rate of electron transfer increases as we move from I- to Cl-.
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The correct trend of rate of electron transfer reaction between the complexes [CoC NH3),5X]2+/ [Co(H2O)6]2+with variation of X isa)Cl- < Br- < SO42-b)Br- < Cl- < SO42-c)SO42- < Cl- < Br-d)SO42- < Br-< CI-Correct answer is option 'C'. Can you explain this answer?
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The correct trend of rate of electron transfer reaction between the complexes [CoC NH3),5X]2+/ [Co(H2O)6]2+with variation of X isa)Cl- < Br- < SO42-b)Br- < Cl- < SO42-c)SO42- < Cl- < Br-d)SO42- < Br-< CI-Correct answer is option 'C'. Can you explain this answer? for Chemistry 2024 is part of Chemistry preparation. The Question and answers have been prepared according to the Chemistry exam syllabus. Information about The correct trend of rate of electron transfer reaction between the complexes [CoC NH3),5X]2+/ [Co(H2O)6]2+with variation of X isa)Cl- < Br- < SO42-b)Br- < Cl- < SO42-c)SO42- < Cl- < Br-d)SO42- < Br-< CI-Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Chemistry 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The correct trend of rate of electron transfer reaction between the complexes [CoC NH3),5X]2+/ [Co(H2O)6]2+with variation of X isa)Cl- < Br- < SO42-b)Br- < Cl- < SO42-c)SO42- < Cl- < Br-d)SO42- < Br-< CI-Correct answer is option 'C'. Can you explain this answer?.
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