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  • The IUPAC name of the coordination compound <img alt="K_{3}\left [ Fe(CN)_{6} \right ]" src="http://entrancecorner.oncodecogs.com/gif.latex?%5Cdpi%7B100%7D%20K_%7B3%7D%5Cleft%20%5B%20Fe%28CN%29_%7B

The IUPAC name of the coordination compound K_{3}\left [ Fe(CN)_{6} \right ] is

Option: 1

potassium hexacyanoferrate (II)


Option: 2

potassium hexacyanoferrate (III)


Option: 3

potassium hexacyanoiron (II)


Option: 4

tripotassium hexacyanoiron (II)


Answers (1)

best_answer

As we have learnt,

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 bis, tris, tetrakis are used.

eg: \left [ Ni\ Cl_{2}\left ( PPh_{3} \right )_{2} \right ] 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 \left [ Co\left ( SCN \right )_{4} \right ]^{2-}is called cobaltate.

-

IUPAC name of K_{3}\left [ Fe\left ( CN \right )_{6} \right ]  is Potassium hexacyanoferrate(III)

Therefore, option (2) is correct.

Posted by

HARSH KANKARIA

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