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The crystal field splitting energies (CFSE) of high spin and low spin d6 metal complexes in octahedral complex in terms of Δo respectively are
  • a)
    -0.4 and -2.4
  • b)
    -2.4 and -0.4 
  • c)
    -0.4 and 0.0
  • d)
    -2.4 and 0.0
Correct answer is option 'A'. Can you explain this answer?
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The crystal field splitting energies (CFSE) of high spin and low spin ...
For high spin d6, CFSE = - 4 x 0.4 + 2 x 0.6 = -0.4
For low spin d6, CFSE= - 6 x 0.4 = -2.4
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The crystal field splitting energies (CFSE) of high spin and low spin ...
Crystal Field Splitting Energy (CFSE) of d6 Metal Complexes

Definition of CFSE: The energy difference between the d-orbitals in a metal ion in a crystal field is known as the crystal field splitting energy.

Types of Metal Complexes: There are two types of d6 metal complexes in an octahedral complex, which are high spin and low spin.

High Spin d6 Metal Complexes: In high spin d6 metal complexes, the electrons occupy the t2g and eg orbitals in a way that maximizes the number of unpaired electrons. The CFSE for high spin d6 metal complexes is -0.4.

Low Spin d6 Metal Complexes: In low spin d6 metal complexes, the electrons occupy the t2g and eg orbitals in a way that minimizes the number of unpaired electrons. The CFSE for low spin d6 metal complexes is -2.4.

Correct Answer: The crystal field splitting energies (CFSE) of high spin and low spin d6 metal complexes in octahedral complex in terms of -0.4 and -2.4 respectively. Therefore, option 'A' is the correct answer.
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Read the passage given below and answer the following questions:The crystal field theory (CFT) is an electrostatic model which considers the metal-ligand bond to be ionic arising purely from electrostatic interactions between the metal ion and the ligand. Ligands are treated as point charges in case of anions or dipoles in case of neutral molecules. The five d orbitals in an isolated gaseous metal atom/ion have same energy, i.e., they are degenerate. This degeneracy is maintained if a spherically symmetrical field of negative charges surrounds the metal atom/ ion. However, when this negative field is due to ligands (either anions or the negative ends of dipolar molecules like NH3 and H2O) in a complex, it becomes asymmetrical and the degeneracy of the d orbitals is lifted. It results in splitting of the d orbitals.The following questions are multiple choice questions. Choose the most appropriate answer:Q. An aqueous pink solution of cobalt(II) chloride changes to deep blue on addition of excess of HCl. This is because _____________.

When a transition metal ion (usually) is involved in octahedral complex formation, the five degenerate d-orbitals split into two set of degenerate orbitals (3 + 2). Three degenerate orbitals of lower energy (dxy, dyz, dzx) and a set of degenerate orbitals of higher energy (dx2 y2and dz2). The orbitals with lower energy are called t2gorbitals and those with higher energy are called egorbitals.In octahedral complexes, positive metal ion may be considered to be present at the centre and negative ligands at the corner of a regular octahedron. As lobes ofandlie along the axes, i.e., along the ligands the repulsions are more and so high is the energy. The lobes of the remaining three d-orbitals lie between the axes. i.e., between the ligands. The repulsion between them are less, so lesser the energy. In the octahedral complexes, if metal ion has electrons more than 3 then for pairing them the option are(i) Pairing may start with 4thelectron in t2gorbitals.(ii) Pairing may start normally with 6thelectrons when t2gand egorbitals are singly filled.Q. Select incorrect match for the following complexes.

The crystal field splitting energies (CFSE) of high spin and low spin d6 metal complexes in octahedral complex in terms of Δorespectively area)-0.4 and -2.4b)-2.4 and -0.4c)-0.4 and 0.0d)-2.4 and 0.0Correct answer is option 'A'. Can you explain this answer?
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The crystal field splitting energies (CFSE) of high spin and low spin d6 metal complexes in octahedral complex in terms of Δorespectively area)-0.4 and -2.4b)-2.4 and -0.4c)-0.4 and 0.0d)-2.4 and 0.0Correct answer is option 'A'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about The crystal field splitting energies (CFSE) of high spin and low spin d6 metal complexes in octahedral complex in terms of Δorespectively area)-0.4 and -2.4b)-2.4 and -0.4c)-0.4 and 0.0d)-2.4 and 0.0Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The crystal field splitting energies (CFSE) of high spin and low spin d6 metal complexes in octahedral complex in terms of Δorespectively area)-0.4 and -2.4b)-2.4 and -0.4c)-0.4 and 0.0d)-2.4 and 0.0Correct answer is option 'A'. Can you explain this answer?.
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