Question

The correct IUPAC name of $\left[Co\right(N{H}_3{)}_3\left(N{O}_2{)}_3\right]$ is:

• A. triammine trinitro$-N-$cobalt (III)
• B. triammine trinitro$-N-$cobalt (II)
• C. triammine cobalt (III) nitrite
• D. triammine trinitro$-N-$cobaltate (III)

Answer 1

The correct option is A triammine trinitro$-N-$cobalt (III)

The correct IUPAC name is Triammine trinitro-N-cobalt(III). In this case, the alphabetical order of the groups is followed i.e. ammine group followed by the nitro- group. Co is in +3 oxidation state.