Chemistry (Chang), 10th Edition

Chapter 22: Transition Metal Chemistry and Coordination Compounds

Self Assessment B

1
The electron configuration of a Ni atom is:
A)[Ar]4s23d8
B)[Ar]3d10
C)1s22s22p63s23p64s23d8
D)A and B
E)B and C
F)A and C
2
The Zn2+ ion has _____ electrons in 3d orbitals.
A)10
B)8
C)6
D)4
E)2
3
The charge on the central metal ion in [Cr(NH3)4(CO3)]+ is
A)-1.
B)0.
C)1.
D)3.
E)5.
4
The correct formula for diamminedichloroethylenediaminecobalt(III) bromide is
A)[CoCl2(en)(NH3)2]Br2.
B)[CoCl2(en)(NH3)2]Br.
C)[CoCl2(en)2(NH3)2] Br2.
D)[CoCl2(en)2(NH3)2]Br.
E)[CoCl(en)(NH3)2]Br.
5
Which of the following coordination compounds is incorrectly named?
A)[Pt(en)2Cl2]Cl2, dichlorobisethylenediamineplatinum(IV) chloride
B)[Co(NH3)4Br2]2[ZnCl4], tetraamminedibromocobalt(III) tetrachlorozincate
C)[Pt(NH3)2]Cl2 diamminedichloroplatinate(II)
D)Fe[PtCl4], iron(II) tetrachloroplatinate(II)
E)[Co(NH3)6]Br3, hexaamminecobalt(III) bromide
6
Which of the following ions is paramagnetic?
A)Sc3+
B)Ti4+
C)Mn7+
D)Ni2+
E)V5+
7
Which of the following ions is least likely to form colored complex ions?
A)Zn2+
B)Mn2+
C)Fe3+
D)Cu2+
E)Cr3+
8
Which of the following octahedral complexes should have the largest crystal field splitting energy?
A)[Cr(NH3]3+
B)[CrF6]3-
C)[Cr(H2O)]3+
D)[Cr(CN)6]3-
E)[CrCl6]3-
9
In the complex ion [Cr(NH3) 6]3+, how many unpaired electrons are there ?
A)1
B)2
C)3
D)4
E)5
10
CN- is a strong field ligand, whereas Cl- is usually a weak field ligand. Which of the following octahedral complexes has no unpaired electrons?
A)[NiCl6]4-
B)[Zn(CN)6]4-
C)[FeF6]4-
D)[CuCl6]4-
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