Consider the following statements regarding magnetism of two complexes:

Question

[CoF₆]³⁻ is a paramagnetic and high spin complex
[Co(NH₃)₆]³⁺ is a diamagnetic and low spin complex

Which of the statements given above is/are correct?

(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2

Vimal Swarnkar · Accepted Answer

(c) Both 1 and 2. Co³⁺ = d⁶. 1 ✔ F⁻ weak field → high spin t₂g⁴eg², 4 unpaired, paramagnetic (sp³d², outer orbital). 2 ✔ NH₃ strong for Co³⁺ → low spin t₂g⁶, diamagnetic (d²sp³). Both → (c).

Answer

(a) 1 only

Answer

(b) 2 only

Answer

(d) Neither 1 nor 2

Geo-Scientist Prelims 2020 Chemistry Q9: Consider the following statements regarding magnetism of two…

QuestionCoordination / magnetism (VBT/CFT)