(19)For which of the following configurations for an octahedral,first row d-block metal ion do you expect there to be an orbital contribution to the magnetic moment? A)2e2 B)t2g C)toge D)tzgeg? (20)Why does the absorption spectrum of aqueous [Ti(OH2)exhibit a broad band with a shoulder? A)The ground state of [Ti(His Jahn-Teller distorted B)The excited state of [Ti(Hundergoes a Jahn-Teller distortion C)[Ti(His ad2ion and therefore there are two absorptions D)[Ti(OH2)6]is partly reduced to [Ti(OH2)in aqueous solution and two absorptions which are close in energy are observed,one for each species Answer: 1.Correct Answer: The theory rationalizes the non-degeneracy of the metal d orbitals by considering the electrostatic repulsions between point charge ligands and electrons in the metal d orbitals 2.Your Answer: <Cr<H2O<en 3.Correct Answer: Mn(ID)<Fe(III)<Rh(III) 4.Correct Answer [Cr(NH3)6P 5.Correct Answer: [NiCl12- 6.Correct Answer [Co(NH3)];diamagnetic (19) For which of the following configurations for an octahedral, first row d-block metal ion do you expect there to be an orbital contribution to the magnetic moment? A) t2g 2 B) t2g 3 C) t2g 6 eg 1 D) t2g 6 eg 2 (20) Why does the absorption spectrum of aqueous [Ti(OH2)6] 3+ exhibit a broad band with a shoulder? A) The ground state of [Ti(OH2)6] 3+ is Jahn-Teller distorted B) The excited state of [Ti(OH2)6] 3+ undergoes a Jahn-Teller distortion C) [Ti(OH2)6] 3+ is a d2 ion and therefore there are two absorptions D) [Ti(OH2)6] 3+ is partly reduced to [Ti(OH2)6] 2+ in aqueous solution and two absorptions which are close in energy are observed, one for each species Answer: 1.Correct Answer: The theory rationalizes the non-degeneracy of the metal d orbitals by considering the electrostatic repulsions between point charge ligands and electrons in the metal d orbitals 2.Your Answer: I– < Cl– < H2O < en 3.Correct Answer: Mn(II) < Fe(III) < Rh(III) 4.Correct Answer: [Cr(NH3)6] 2+ 5.Correct Answer: [NiCl4] 2– 6.Correct Answer: [Co(NH3)6] 3+; diamagnetic 6