The most stable ion is

The most stable ion is
  1. $\left[\mathrm{Fe}(\mathrm{OH})_3\right]^{3-}$
  2. $\left[\mathrm{Fe}(\mathrm{Cl})_6\right]^{3-}$
  3. $\left[\mathrm{Fe}(\mathrm{CN})_6\right]^{3-}$
  4. $\left[\mathrm{Fe}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{3+}$

Solution

A more basic ligand forms stable bond with metal ion, $\mathrm{Cl}^{-}$ is most basic amongst all

Asked in: JEE Main 2002

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