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Electron transfer from [Fe(H2O)6]2+ to [Fe(H2O)6]3+ is likely to occur viavia
  • a)
    SN1                                                                           
  • b)
    Inner sphere mechanism           
  • c)
    Outer sphere mechanism                                         
  • d)
    d-d transition
Correct answer is option 'C'. Can you explain this answer?
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Electron transfer from [Fe(H2O)6]2+ to [Fe(H2O)6]3+ is likely to occur...
Outer sphere mechanism

The electron transfer from [Fe(H2O)6]2+ to [Fe(H2O)6]3+ is likely to occur via the outer sphere mechanism.


Explanation:

In the outer sphere mechanism, the electron transfer occurs through an outer sphere complex, where the metal ions are surrounded by ligands but are not directly involved in the electron transfer process.


Key Points:


  • Electron transfer involves the movement of an electron from one species to another.

  • [Fe(H2O)6]2+ and [Fe(H2O)6]3+ are both complexes of iron (Fe) with water ligands. The numbers in brackets represent the oxidation states of the iron ions.

  • [Fe(H2O)6]2+ has a +2 charge, while [Fe(H2O)6]3+ has a +3 charge.

  • The electron transfer from [Fe(H2O)6]2+ to [Fe(H2O)6]3+ involves the transfer of one electron, resulting in the reduction of [Fe(H2O)6]3+ to [Fe(H2O)6]2+.

  • The outer sphere mechanism is favored when the reactants are not directly in contact with each other and the electron transfer occurs via an intermediate species.



Reasoning:

In this case, the electron transfer occurs between two different oxidation states of the same metal ion, iron (Fe). The electron transfer is facilitated by the presence of water ligands surrounding the metal ions in both complexes. Since the reactants are not directly in contact with each other and the electron transfer occurs through an intermediate species, the outer sphere mechanism is the most likely pathway for the electron transfer to occur.


Conclusion:

The electron transfer from [Fe(H2O)6]2+ to [Fe(H2O)6]3+ is likely to occur via the outer sphere mechanism, where the electron transfer occurs through an outer sphere complex.
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Electron transfer from [Fe(H2O)6]2+ to [Fe(H2O)6]3+ is likely to occur...
Because its hybridization is sp3d2 so it is outer sphere mechanism
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Electron transfer from [Fe(H2O)6]2+ to [Fe(H2O)6]3+ is likely to occur viaviaa)SN1b)Inner sphere mechanismc)Outer sphere mechanismd)d-d transitionCorrect answer is option 'C'. Can you explain this answer?
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