Consider Two Complexes: (I) [Fe(CN)₆]^4-, and (II) [Fe(H₂O)₆]²⁺

Multiple Choice

Consider two complexes: (I) [Fe(CN) ₆]^4-, and (II) [Fe(H₂O) ₆]²⁺. In view of the spectrochemical series, which one of the following sets of predictions is most likely correct?
Spectrochemical Series
I^- < Br ^- < Cl^- < F^- < OH^- < H₂O < NH₃ < NO₂^- < CN^- < CO

A) I is low spin, II is high spin, and II absorbs light at the shorter wavelength.
B) I is low spin, II is high spin, and I absorbs light at the shorter wavelength.
C) I is high spin, II is low spin, and I absorbs light at the shorter wavelength.
D) Both have 6 d electrons, so both are high spin.
E) Both have 6 d electrons, so both are low spin.