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The colour and tlie mason for the deep coloration of [Fe(NCS)6]3- and [Fe(bpy)3]2+ respectively are 
  • a)
    dark red, d-d transition; blood red, charge transfer 
  • b)
    blue, charge transfer; blood red, charge transfer 
  • c)
    blood red, charge transfer; dark red, charge transfer
  • d)
    blue, charge transfer; dark red, d-d transition
Correct answer is option 'C'. Can you explain this answer?
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The colour and tlie mason for the deep coloration of [Fe(NCS)6]3-and [...
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The colour and tlie mason for the deep coloration of [Fe(NCS)6]3-and [...
Explanation:

The color of a transition metal complex is determined by the electronic transitions that occur within the complex. In the case of [Fe(NCS)6]3-, the color is dark red, which is indicative of a d-d transition. In the case of [Fe(bpy)3]2, the color is blood red, which is indicative of a charge transfer.

D-D Transition:

- D-d transition refers to the electronic transition that occurs between the d orbitals of the metal ion.
- The d orbitals in the transition metal ion split into different energy levels in the presence of ligands.
- When a transition metal complex absorbs light, an electron from one of the lower energy d orbitals is excited to a higher energy d orbital.
- The energy difference between the d orbitals corresponds to a specific wavelength of light, which gives the complex its color.
- In the case of [Fe(NCS)6]3-, the complex absorbs light in the visible range, resulting in a dark red color. This indicates that the color is due to a d-d transition.

Charge Transfer:

- Charge transfer refers to the transfer of an electron from one species to another.
- In a transition metal complex, charge transfer can occur between the metal ion and the ligands.
- When a transition metal complex undergoes charge transfer, an electron is transferred from a ligand to the metal ion or vice versa.
- This transfer of electrons results in a change in the electronic configuration of the complex and leads to a characteristic color.
- In the case of [Fe(bpy)3]2, the complex absorbs light in the visible range, resulting in a blood red color. This indicates that the color is due to a charge transfer.

Conclusion:

Based on the given information, the color and the reason for the deep coloration of [Fe(NCS)6]3- and [Fe(bpy)3]2 are blood red, charge transfer and dark red, charge transfer, respectively. Therefore, option C is the correct answer.
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The colour and tlie mason for the deep coloration of [Fe(NCS)6]3-and [Fe(bpy)3]2+respectively area)dark red, d-d transition; blood red, charge transferb)blue, charge transfer; blood red, charge transferc)blood red, charge transfer; dark red, charge transferd)blue, charge transfer; dark red, d-d transitionCorrect answer is option 'C'. Can you explain this answer?
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The colour and tlie mason for the deep coloration of [Fe(NCS)6]3-and [Fe(bpy)3]2+respectively area)dark red, d-d transition; blood red, charge transferb)blue, charge transfer; blood red, charge transferc)blood red, charge transfer; dark red, charge transferd)blue, charge transfer; dark red, d-d transitionCorrect 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 colour and tlie mason for the deep coloration of [Fe(NCS)6]3-and [Fe(bpy)3]2+respectively area)dark red, d-d transition; blood red, charge transferb)blue, charge transfer; blood red, charge transferc)blood red, charge transfer; dark red, charge transferd)blue, charge transfer; dark red, d-d transitionCorrect 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 colour and tlie mason for the deep coloration of [Fe(NCS)6]3-and [Fe(bpy)3]2+respectively area)dark red, d-d transition; blood red, charge transferb)blue, charge transfer; blood red, charge transferc)blood red, charge transfer; dark red, charge transferd)blue, charge transfer; dark red, d-d transitionCorrect answer is option 'C'. Can you explain this answer?.
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