First slide

IUPAC Nomenclature

Question

The IUPAC name of ${[Cr {({NH}_{3})}_{6}]}^{3 +}$ is

Easy

A

hexamminechromium (VI) ion
B

hexamminechromium (III) ion
C

hexamminechromium (II) ion
D

hexamminechloride

Solution

ln the given ion ${[Cr {({NH}_{3})}_{6}]}^{3 +}$ , the oxidation state of chromium is +3 and here $6 {NH}_{3}$ ligands are attached to the central metal atom. Therefore its IUPAC name is hexamminechromium (III) ion.

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