The magnitude of the difference in the crystal field stabilization energies, in $\Delta_{0}$ (irnoring pairing energy), of $\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right]^{2+}$ and $\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{4-}$ is ____
Answer
Answer (as printed): 2.0
The options are missing from the source scan for this question, so there is nothing here for this letter to point at. The letter is what the book printed.