Q.

The IUPAC name of [Co(NH3)5(CO3)]Cl is

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a

Penta ammine chloro cobalt (III) chloride

b

Penta amino carbonate chloro cobalt (III)

c

Penta ammine carbonato cobalt (III) chloride

d

Penta amino chloro cobalt (III) carbonate

answer is C.

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Detailed Solution

The ligand is named first.
The charge of metal indicated with the Roman numerals and enclosed in the parenthesis after metal name.
The ligands are named in alphabetical order before the metal ion.
Ligands that include a numerical prefix in the name use the prefixes bis for 2, tris for 3, or tetrakis for 4 to indicate their number.
In the given coordination compound, Co is the cobalt metal,  and  are the ligands named as carbonato  and ammine.

For oxidation no of Co

x +(0)5+(-2)1=+1

x = +3

IUPAC name of the following complex [Co(NH3​)5​(CO3​)]Cl is Pentaaminecarbonatocobalt (III) chloride

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