25. A species has the following MO configuration: (1s)2(1s*)2(2s)2(2s*)2(2p)2(2p)2 This substance is (A) paramagnetic with one unpaired electron (B) paramagnetic with two unpaired electrons (C) paramagnetic with three unpaired electrons (D) paramagnetic with four unpaired electrons (E) diamagnetic

35. The complex ions of Zn2+ are all colorless. The most likely explanation for this is: (A) Zn2+ is paramagnetic. (B) Zn2+ exhibits “d orbital” splittings in its complexes such that they absorb all wavelengths in the visible region. (C) Since Zn2+ is a d10 ion, it does not absorb visible light even though the “d orbital” splittings are correct for absorbing visible wavelengths. (D) Zn2+ is not a transition metal ion. (E) None of these is correct.

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