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a
Penta ammine carbonyl cobalt (III) chloride
b
Penta amino chloro cobalt (III) carbonate
c
Penta ammine carbonato cobalt (III) chloride
d
Penta amino carbonato chloro cobaltate (III)
answer is C.
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Detailed Solution
Ligands are NH3 . . ammine CO3-2 . . carbonate Counter ion is chloride (Cl-)Total negative charge = -3∴oxidation state of cobalt is “+3”while naming a complex, ligands are named first in alphabetical order followed by central metal with its oxidation state as roman number in parenthesis. IUPAC name of the complex is Penta ammine carbonato cobalt (III) chloride.