MolSynapsequestion bank

MolSynapse / Question bank / Coordination Compounds / IUPAC nomenclature

JEE Main levelSingle correct optionDifficulty 2 of 3cc088

The correct IUPAC name of $[Co (NH X_{3}) X_{5} (ONO)] Cl X_{2}$ , in which nitrite is bonded through oxygen, is

Apentaamminenitrocobalt(III) chloride
Bpentaamminenitrito-O-cobalt(II) chloride
Cpentaamminenitrito-N-cobalt(III) chloride
Dpentaamminenitrito-O-cobalt(III) chloride

Answer: D

The ligand

ONO X^{-}

is O-bonded nitrite, named nitrito-O (the N-bonded form is nitro or nitrito-N). The cation is

+ 2

because two

Cl X^{-}

are outside, so

x - 1 = + 2

and Co is +3.

Practice Coordination Compounds More on IUPAC nomenclature

Previous questionNext question

More questions on IUPAC nomenclature