Consider two complexes: (I) [Fe(CN) 6]4 ![Consider two complexes: (I) [Fe(CN) <sub>6</sub>]<sup>4</sup><sup> </sup> <sup> </sup> , and (II) [Fe(H<sub>2</sub>O) <sub>6</sub>]<sup>2+</sup>. In view of the spectrochemical series, which one of the following sets of predictions is most likely correct? Spectrochemical Series I<sup>-</sup> < Br<sup>-</sup> < Cl<sup>-</sup> < F<sup>-</sup> < OH<sup>-</sup> < H<sub>2</sub>O < NH<sub>3</sub> < NO<sub>2</sub><sup>-</sup> < CN<sup>-</sup> < 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.](https://d2lvgg3v3hfg70.cloudfront.net/TB3833/11eaae02_0888_c522_95d8_07084bde7f0b_TB3833_11.jpg)
, 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.
Correct Answer:
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