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Question

Which of these statements about [Co(CN)6]3− is true ?

A
[Co(CN)6]3 has no unpaired electrons and will be in a high-spin configuration.
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B
[Co(CN)6]3 has no unpaired electrons and will be in a low-spin configuration.
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C
[Co(CN)6]3 has four unpaired electrons and will be in a low-spin configuration.
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D
[Co(CN)6]3 has four unpaired electrons and will be in a high-spin configuration.
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Solution

The correct option is B [Co(CN)6]3 has no unpaired electrons and will be in a low-spin configuration.

[Co(CN)6]3 has no unpaired electrons and will have low spin configuration.


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