What is the number of moles of donor atoms in n mole of $\mathrm{NO}_2^{-}$?

What is the number of moles of donor atoms in n mole of $\mathrm{NO}_2^{-}$?
  1. $3 \mathrm{n}$
  2. $0$
  3. $2 \mathrm{n}$
  4. $\mathrm{n}$

Solution

The ligand $\mathrm{NO}_2^{-}$links to metal ion through nitrogen or oxygen. Hence, there are two donor atoms per molecule and $2 \mathrm{n}$ moles donor atoms per n mole.

Asked in: MHT CET 2023 (12 May Shift 2)

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