Question

IUPAC names of the
[Cr(H2O)4 Cl2]NO3​

Answer 1

Your answer:

Tetraaqua dichlorido Chromium (III) Nitrate

Answer 2

The IUPAC name is tetraaquadichlorochromium(III) nitrate.

• In the above complex, two ligands are present water and chlorine. So, tetra aqua and dichloro will come.
• Here the oxidation state of Cr is as follows-
• $x + 0 \times 4 - 2 \times 1 - 1 = 0 \\ x = + 3$
• Here x is the oxidation state of Cr. Thus, the oxidation state of Cr is +3.
• For the $NO_3$ group the term nitrate will come.
• The IUPAC name is tetraaquadichlorochromium(III) nitrate.