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The IUPAC name of [Cr(NH3)6]^(3+) is...

The IUPAC name of `[Cr(NH_3)_6]^(3+)` is

A

(a) hexamminechromium (VI) ion

B

(b) hexamminechromium (III) ion

C

(c) hexamminechromium (II) ion

D

(d) hexamminechloride

Text Solution

Verified by Experts

The correct Answer is:
B
In the given ion `[Cr(NH_3)_6]^(3+)`, the oxidation state of chromium is `+3` and here `6NH_3` ligands are attached to the central metal atom. Therefore its IUPAC name is hexamminechromium (III) ion.
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