CUET · CHEMISTRY · PYQ PAPER 2023
The spin magnetic moment of cobalt in the compound named Mercuric tetrathiocyanato cobaltate (II) is
- A \(\sqrt{8}\)
- B \(\sqrt{24}\)
- C \(\sqrt{15}\)
- D \(\sqrt{3}\)
Answer & Solution
Correct Answer
(C) \(\sqrt{15}\)
Step-by-step Solution
Detailed explanation
\(\text{Co in Mercuric tetrathiocyanato cobaltate (II) is Co}^{2+}\) \(\text{Co}^{2+}\) is d\(^7\). Tetrahedral \(\text{Co}^{2+}\) with thiocyanate (weak field ligand) is high spin. Number of unpaired electrons, \(n = 3\). \(\mu = \sqrt{n(n+2)}\)…
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