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JEE Mains · Chemistry · STD 12 - 5. Co-ordination chemistry

The octahedral diamagnetic low spin complex among the following is

  1. A \(\left[ NiCl _4\right]^{2-}\)
  2. B \(\left[ CoCl _6\right]^{3-}\)
  3. C \(\left[ CoF _6\right]^{3-}\)
  4. D \(\left[ Co \left( NH _3\right)_6\right]^{3+}\)
Verified Solution

Answer & Solution

Correct Answer

(D) \(\left[ Co \left( NH _3\right)_6\right]^{3+}\)

Step-by-step Solution

Detailed explanation

(1) Paramagnetic, High Spin and Tetrahedral (2) Paramagnetic, High Spin and Octahedral (3) Paramagnetic, High Spin and Octahedral (4) Diamagnetic, Low Spin and Octahedral \(\left[ Co \left( NH _3\right)_6\right]^{3+}, CN =6(\text { Octahedral })\) \(NH _3= SFL\)…