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NEET · Chemistry · STD 12 - 5. Co-ordination chemistry
Which of these statements about \([Co(CN)_6]^{3-}\) is true?
- A \([Co(CN)_6]^{3-}\) has four unpaired electrons and will be in a high-spin configuration.
- B \([Co(CN)_6]^{3-}\) has no unpaired electrons and will be in a high-spin configuration.
- C \([Co(CN)_6]^{3-}\) has no unpaired electrons and will be in a low-spin configuration.
- D \([Co(CN)_6]^{3-}\) has four unpaired electrons and will be in a low-spin configuration.
Answer & Solution
Correct Answer
(C) \([Co(CN)_6]^{3-}\) has no unpaired electrons and will be in a low-spin configuration.
Step-by-step Solution
Detailed explanation
\(\left[\mathrm{Co}(\mathrm{CN})_{6}\right]^{-3}\) \(\mathrm{Co}^{+3}=3 \mathrm{d}^{6} 4 \mathrm{s}^{0} 4 \mathrm{p}^{0}\)
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