Question
Download Solution PDFWhich of the following has highest CFSE ?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT:
Crystal Field Stabilization Energy (CFSE)
- CFSE is the energy difference between the energy of a complex in its actual electronic configuration and the energy it would have if the electrons were evenly distributed.
- CFSE depends on the geometry of the complex (octahedral, tetrahedral, etc.), the oxidation state of the metal, and the nature of the ligands.
EXPLANATION:
- (FeCl4)2-: Iron is in the +2 oxidation state with a d6 configuration in a tetrahedral field. Tetrahedral complexes generally have lower CFSE, and for d6 configuration, the CFSE is negligible.
- [TiF6]3-: Titanium is in the +3 oxidation state with a d1 configuration in an octahedral field. The CFSE for d1 is \(-0.4 \Delta_o\), which is moderate.
- [Cr(H2O)6]3+: Chromium is in the +3 oxidation state with a d3 configuration in an octahedral field. The CFSE for d3 is \(-1.2 \Delta_o\), making it the highest among the options.
- [Mn(H2O)6]2+: Manganese is in the +2 oxidation state with a d5 configuration in an octahedral field. The CFSE is zero due to symmetric filling of the t2g and eg orbitals.
CONCLUSION:
The correct answer is [Cr(H2O)6]3+.
Last updated on Jul 21, 2025
-> The HPSC Assistant Professor Political Science final answer key has been released, the answer key relased on 3rd June 2025 stands suspended.
-> The HPSC Assistant Professor Result has been released for the screening test of the Assistant Professor Chemistry, and Physics.
-> The HPSC Assistant Professor Subject Knowledge Test is scheduled on various days between 25th April to 31st August 2025, and the Screening Test will be conducted between 27th April to 29th June 2025.
-> The Skill Test (Fine Arts & Music) was conducted from 4th to 12th April 2025.
-> HPSC Assistant Professor Notification (2024) was released for 2424 vacancies.
-> The commission has decided to conduct the Exams through a Screening Test followed by a Subject Knowledge Test (87.5% weightage) and Interview (12.5 % weightage).
-> Candidates who have completed their Post Graduation are eligible to apply for the post.
-> After getting a successful selection, the candidates will receive a decent salary range between Rs. 57,700 - Rs. 1,82,400.