Question 1

Paramagnetic substances are attracted to magnetic fields. A set of synthetic mineral crystals was prepared with different metal ions substituted into the identical octahedral site in the lattice. If each crystal contained exactly the same number of the indicated metal ion, which would have the greatest attraction to a magnetic field?

Accepted Answer

A) Mn(II), high spin 
B) Fe(II), high spin 
C) Co(II), high spin 
D) Ni(II), high spin 
E) Cu(II), high spin

Question 2

Metal ions complexed with ________ are found in many important biological compounds.

Accepted Answer

A) a porphyrin ring 
B) a benzene ring 
C) cyanide ions 
D) hydroxyl ions 
E) potassium ions

Question 3

How many unpaired spins are there in the tetrahedral complex ion, NiCl42F1F1F1S1F1F1F10?

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
E) 5

Question 4

A solution containing the ion CoF63F1F1F1S1F1F1F10 has an absorption maximum at F1F1F1S1F1F1F10max F1F1F1S1F1F1F10 680 nm. The color of this solution is ________

Accepted Answer

A) red. 
B) green. 
C) blue. 
D) orange. 
E) violet.

Question 5

Molecules that have isomers that are nonsuperimposable mirror images are called ________

Accepted Answer

A) bis. 
B) structural isomers. 
C) cis. 
D) bidentate. 
E) chiral.

Question 6

How many chelation sites and donor groups does EDTA have?

Accepted Answer

A) 2 
B) 10 
C) 6 
D) 4 
E) 5

Question 7

Cobalt is critical for function of which of the following?

Accepted Answer

A) carbonic anhydrase 
B) coenzyme B12 
C) nitrogenase 
D) superoxide dismutase 
E) hemoglobin

Question 8

Which of the following square planar complexes would have enantiomers?

Accepted Answer

A) Pt(NH3)42F1F1F1S1F1F1F10 
B) PtCl42F1F1F1S1F1F1F10 
C) Pt(NH3)2Cl2 
D) None have enantiomers. 
E) Pt(NH3)3Cl

Question 9

The effects of lead poisoning can sometimes be reversed by addition of a chelating agent to sequester the metal from the body. Which of the following compounds would be most effective to act as such a chelating agent?

Accepted Answer

A) P(CH3)3 
B) H2O 
C) CNF1F1F1S1F1F1F10 
D) OHF1F1F1S1F1F1F10 
E) EDTA4F1F1F1S1F1F1F10

Question 10

Which of the following is a chelation agent?

Accepted Answer

A) EDTA 
B) ClF1F1F1S1F1F1F10 
C) NH2 
D) SCNF1F1F1S1F1F1F10 
E) CNF1F1F1S1F1F1F10

Question 11

What is the correct formula for sodium tetracyanodihydroxovanadate(II)?

Accepted Answer

A) Na2[V(CN)4(OH)2] 
B) Na3[V(CN)4(OH)2] 
C) Na4[V(CN)4(OH)2] 
D) Na[V(CN)4(OH)2] 
E) Na3[V(CN)4(OH)]

Question 12

Which of the following complexes has the largest crystal field splitting of the d orbitals?

Accepted Answer

A) CoF63F1F1F1S1F1F1F10 
B) Co(CN)63F1F1F1S1F1F1F10 
C) CoBr63F1F1F1S1F1F1F10 
D) Co(H2O)63F1F1F1S1F1F1F10 
E) CoI63F1F1F1S1F1F1F10

Question 13

Which statement concerning the crystal field theory of octahedral transition metal complexes is not correct?

Accepted Answer

A) The crystal field splitting (F1F1F1S1F1F1F10o) increases with increasing charge of the metal ion for the same set of ligands. 
B) The crystal field splitting (F1F1F1S1F1F1F10o) is determined solely by the charge of the transition metal complex ion. 
C) The  and  orbitals are higher in energy than the dxy, dxz, and dyz orbitals because these two point directly toward the ligands. 
D) All ligands contribute to the strength of the crystal field. 
E) The ordering of the orbitals,  and  are higher in energy than the dxy, dxz, and dyz orbitals, is independent of the strength of the crystal field.

Question 14

Which pieces of information are needed to explain why Ni(CN)42F1F1F1S1F1F1F10 is diamagnetic?
I.It has six d electrons.
II.It has eight d electrons.
III.It is tetrahedral.
IV.It is square planar.
V.It is strong field.
VI.It is weak field.

Accepted Answer

A) II, IV, V 
B) I, IV, V 
C) II, III, V 
D) II, III, VI 
E) II, IV, VI

Question 15

Cisplatin and other metallodrugs used with cancer are believed to function by ________

Accepted Answer

A) binding DNA and inhibiting cell replication. 
B) disrupting ion flow across cancer cell membranes. 
C) entering the cell mitochondria and halting energy production for cancer cells. 
D) disturbing RNA production. 
E) causing the cell nucleus to rupture.

Question 16

Porphyrins are polydentate ligands found in nature. They support the iron centers in heme proteins, which allows for the transport of oxygen throughout the blood stream. A structure of the core of a porphyrin is shown below. Based on the structure, what type of denticity would the ligand likely possess?

Accepted Answer

The answer of Porphyrins are polydentate ligands found in nature....

Question 17

How many unpaired electrons are there in the octahedral complex ion, Mn(CN)64F1F1F1S1F1F1F10?

Accepted Answer

A) 1 
B) 2 
C) 4 
D) 5 
E) 3

Question 18

A solution containing an octahedral metal ion has an absorption maximum at F1F1F1S1F1F1F10max F1F1F1S1F1F1F10 535 nm. The color of this solution is ________

Accepted Answer

A) red. 
B) green. 
C) blue. 
D) orange. 
E) violet.

Question 19

Draw and label (cis and trans) the stereoisomers of the square planar complex ion CuCl₂Br₂²F1F1F1S1^F1F1F10.

Accepted Answer

The answer of Draw and label (cis and trans) the...

Question 20

In Na2[Zn(CN)4], the counter ion is ________, and in [Co(NH3)4Cl2]NO3, the counter ion is ________.

Accepted Answer

A) CN-; NO3- 
B) Na+; NO3- 
C) CN-; Cl- 
D) Na+; Cl- 
E) Zn2+; Co3+

Exam 22: Transition Metals: Biological and Medical Applications

Metal ions complexed with ________ are found in many important biological compounds.

How many unpaired spins are there in the tetrahedral complex ion, NiCl₄²^?

A solution containing the ion CoF₆³^ has an absorption maximum at _max  680 nm. The color of this solution is ________

Molecules that have isomers that are nonsuperimposable mirror images are called ________

How many chelation sites and donor groups does EDTA have?

Cobalt is critical for function of which of the following?

Which of the following square planar complexes would have enantiomers?

The effects of lead poisoning can sometimes be reversed by addition of a chelating agent to sequester the metal from the body. Which of the following compounds would be most effective to act as such a chelating agent?

Which of the following is a chelation agent?

What is the correct formula for sodium tetracyanodihydroxovanadate(II) ?

Which of the following complexes has the largest crystal field splitting of the d orbitals?

Which statement concerning the crystal field theory of octahedral transition metal complexes is not correct?

Which pieces of information are needed to explain why Ni(CN) ₄²^ is diamagnetic? I.It has six d electrons. II.It has eight d electrons. III.It is tetrahedral. IV.It is square planar. V.It is strong field. VI.It is weak field.

Cisplatin and other metallodrugs used with cancer are believed to function by ________

How many unpaired electrons are there in the octahedral complex ion, Mn(CN) ₆⁴^?

A solution containing an octahedral metal ion has an absorption maximum at _max  535 nm. The color of this solution is ________

Draw and label (cis and trans) the stereoisomers of the square planar complex ion CuCl₂Br₂²^.

In Na₂[Zn(CN) ₄], the counter ion is , and in [Co(NH₃) ₄Cl₂]NO₃, the counter ion is .

Exam 22: Transition Metals: Biological and Medical Applications

Metal ions complexed with ________ are found in many important biological compounds.

How many unpaired spins are there in the tetrahedral complex ion, NiCl42?

A solution containing the ion CoF63 has an absorption maximum at max  680 nm. The color of this solution is ________

Molecules that have isomers that are nonsuperimposable mirror images are called ________

How many chelation sites and donor groups does EDTA have?

Cobalt is critical for function of which of the following?

Which of the following square planar complexes would have enantiomers?

The effects of lead poisoning can sometimes be reversed by addition of a chelating agent to sequester the metal from the body. Which of the following compounds would be most effective to act as such a chelating agent?

Which of the following is a chelation agent?

What is the correct formula for sodium tetracyanodihydroxovanadate(II) ?

Which of the following complexes has the largest crystal field splitting of the d orbitals?

Which statement concerning the crystal field theory of octahedral transition metal complexes is not correct?

Which pieces of information are needed to explain why Ni(CN) 42 is diamagnetic? I.It has six d electrons. II.It has eight d electrons. III.It is tetrahedral. IV.It is square planar. V.It is strong field. VI.It is weak field.

Cisplatin and other metallodrugs used with cancer are believed to function by ________

How many unpaired electrons are there in the octahedral complex ion, Mn(CN) 64?

A solution containing an octahedral metal ion has an absorption maximum at max  535 nm. The color of this solution is ________

Draw and label (cis and trans) the stereoisomers of the square planar complex ion CuCl2Br22.

In Na2[Zn(CN) 4], the counter ion is ________, and in [Co(NH3) 4Cl2]NO3, the counter ion is ________.

How many unpaired spins are there in the tetrahedral complex ion, NiCl₄²^?

A solution containing the ion CoF₆³^ has an absorption maximum at _max  680 nm. The color of this solution is ________

Which pieces of information are needed to explain why Ni(CN) ₄²^ is diamagnetic? I.It has six d electrons. II.It has eight d electrons. III.It is tetrahedral. IV.It is square planar. V.It is strong field. VI.It is weak field.

How many unpaired electrons are there in the octahedral complex ion, Mn(CN) ₆⁴^?

A solution containing an octahedral metal ion has an absorption maximum at _max  535 nm. The color of this solution is ________

Draw and label (cis and trans) the stereoisomers of the square planar complex ion CuCl₂Br₂²^.

In Na₂[Zn(CN) ₄], the counter ion is , and in [Co(NH₃) ₄Cl₂]NO₃, the counter ion is .