25. A species has the following MO configuration: (σ1s)2(σ1s*)2(σ2s)2(σ2s*)2(σ2p)2(σ2p)2This substance is(A) paramagnetic with one unpaired electron (B) paramagnetic with twounpaired electrons(C) paramagnetic with three unpaired electrons (D) paramagnetic withfour 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 allwavelengths in the visible region.(C) Since Zn2+ is a d10 ion, it does not absorb visible light even though the “dorbital” 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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