Question:

Which of the following ion/ions is/are diamagnetic?

Show Hint

Diamagnetic complexes have no unpaired electrons. Use crystal field theory to determine the spin state based on the ligand field strength.

Updated On: Jan 29, 2026
  • [CoF6]3−
  • [Co(NH3)6]3+
  • [Fe(OH2)6]2+
  • [Fe(CN)6]4−
Hide Solution
collegedunia
Verified By Collegedunia

The Correct Option is B, D

Solution and Explanation

  • [CoF6]3−: Paramagnetic due to unpaired electrons in the high-spin configuration.
  • [Co(NH3)6]3+: Diamagnetic because NH3 is a strong field ligand, leading to a low-spin configuration with no unpaired electrons.
  • [Fe(OH2)6]2+: Paramagnetic due to unpaired electrons.
  • [Fe(CN)6]4−: Diamagnetic because CN− is a strong field ligand, leading to a low-spin configuration with no unpaired electrons.
Was this answer helpful?
0
0

Top Questions on Electronic Configurations Of Elements And The Periodic Table

View More Questions

Questions Asked in WBJEE exam

View More Questions