JEE Main · 2024 · 29 Jan 2024 · Shift 2 · Coordination Compounds

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The correct IUPAC name of is
  1. (A)Potassium tetraoxopermanganate (VI)
  2. (B)Potassium tetraoxidomanganate (VI)✓ Correct
  3. (C)Dipotassium tetraoxidomanganate (VII)
  4. (D)Potassium tetraoxidomanganese (VI)

Answer: (B)

Solution

Assign the oxidation state of Mn in : with K at +1 and O at ,


In additive IUPAC nomenclature, oxide ligands bonded to a central atom are named "oxido", and the anion of a metal-oxo species takes the "-ate" ending with the oxidation state given in Roman numerals. , with four oxido ligands and manganese in the +6 state, is named tetraoxidomanganate(VI); the balancing potassium cations are simply cited as "potassium". The older "oxo" prefix, the "-ese" ending used for a neutral metal atom, and the +7 oxidation state all misdescribe this compound.

The correct IUPAC name is potassium tetraoxidomanganate(VI).

JEE Main · 2024 · 29 Jan 2024 · Shift 2 · Single correct option

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