IUPAC name of
Pentamminenitrocobalt (III) chloride
Pentamminenitrosocobalt (III) chloride
Pentamminenitrocobalt (II) chloride
None of these
As we have learned
Writing the name of Complex compound formula -
(i) Cation is named first
(ii) ligands are named in alphabetical order before name of central metal atom.
(iii) Prefixes, mono, di, tri are used to indicate the no of ligands
(iv) when name of ligand used a numerical prefix, then term bix, tris, tetrakis are used.
is named as dichlorobis (triphenylphosphine)nickel(II)
(v) Oxidation state is represented by roman numerical in parenthesis
(vi) If the complex ion is an anion, the name of metal ends with suffix -ate
eg: co in complex anion
is called cobaltate.
In the compounds , the oxidation state of cobalt is +3 and here 5 ligand, a ligand are attached to the central atom. therefore its name is pentaamminecobalt (III) chloride.
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