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Question
The IUPAC name of K3[Co(NO2)5] is ______.
Options
potassium (I) hexanitrocobaltate (II)
potassium (III) hexanitrocobaltate (III)
potassium hexanitrocobalt (0)
potassium hexanitrocobaltate (III)
MCQ
Fill in the Blanks
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Solution
The IUPAC name of K3[Co(NO2)5] is potassium hexanitrocobaltate (III).
Explanation:
The IUPAC name is potassium pentanitritocobalt(III). This name reflects:
- Cobalt in the +3 oxidation state (Co3+).
- Five NO2− (nitrito) ligands.
- Three potassium ions (K+) balance the charge outside the coordination sphere.
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