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22. Coordination compounds question bank (Chemistry)

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Q1.

Cobalt (III) chloride forms several octahedral complexes with ammonia. Which of the following will not give test of chloride ions with silver nitrate at 25°C?

(A)
CoCl₃·4NH₃
(B)
CoCl₃·5NH₃
(C)
CoCl₃·6NH₃
(D)
CoCl₃·3NH₃
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Q2.

Which of these statements about [Co(CN)₆]³â» is true:-

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