Question

Which of the following is not enclosed in parenthesis?

(a) Polyatomic ligands in the formula of coordination compounds

(b) Ligand abbreviations in the formula of coordination compounds

(c) Oxidation number of central metal in the naming of coordination compounds

(d) The coordination entity in the formula of coordination compounds

The question was asked in final exam.

I'd like to ask this question from Nomenclature of Coordination Compounds topic in section Coordination Compounds of Chemistry – Class 12

Answer 1

Correct answer is (d) The coordination entity in the formula of coordination compounds

Best explanation: The coordination entity consisting of the metal atom/ion followed by ligands is enclosed within square brackets and not in parenthesis.