(10)Match the formula to the coordination number(CN)of the d-block metal centre in the solid state structure.Which pair is incorrect? A)[CoCl(py)]:CN=6 B)[V4O2],CN=4 C)Cs:MnCls;CN=4 D)Ti(NO3)4;CN=4 (11)In [Cr2(py)(H-OCMe)].the Cr-Cr bond can be described in terms of which electronic configuration? A)282 B)62x28 C)62x2828*2 D)62x (12)Which of the following species contains Fe in its highest oxidation state? A)[FeO B)FeO产 C)[FeO] D)[FeO3 (13)Which of the following complexes do you expect to be paramagnetic and to have an orbital contribution to the magnetic moment? A)[Fe(en)s B)[Fe(CN)] C)[MnFs]2- D)[Mn(CN)] (14)CoO adopts a normal spinel structure.If the structure is considered in terms of cubic close-packed-ions,which statement is correct? (10) Match the formula to the coordination number (CN) of the d-block metal centre in the solid state structure. Which pair is incorrect? A) [CoCl2(py)2]n; CN = 6 B) [V4O12] 4–; CN = 4 C) Cs3MnCl5; CN = 4 D) Ti(NO3)4; CN = 4 (11) In [Cr2(py)2(μ-O2CMe)4], the Cr–Cr bond can be described in terms of which electronic configuration? A) σ 2 π 4 δ2 B) σ 2 π 2 δ2 C) σ 2 π 2 δ2 δ*2 D) σ 2 π 4 (12) Which of the following species contains Fe in its highest oxidation state? A) [FeO4] 2– B) [FeO4] 3– C) [FeO4] 4– D) [FeO3] 2– (13) Which of the following complexes do you expect to be paramagnetic and to have an orbital contribution to the magnetic moment? A) [Fe(en)3] 2+ B) [Fe(CN)6] 4– C) [MnF6] 2– D) [Mn(CN)6] 2– (14) Co3O4 adopts a normal spinel structure. If the structure is considered in terms of cubic close-packed O2– ions, which statement is correct? 3