Question 1

Which of the following is the correct electron configuration for Fe3+?

Accepted Answer

$$[\mathrm{Ar}]\ 3d^5$

Question 2

In the coordination compound $$[Co(NH_3$)_6]Cl_3$, what is the oxidation state of cobalt?

Accepted Answer

$$+3$$

Question 3

Which ligand is bidentate?

Accepted Answer

Ethylenediamine (en)

Question 4

What is the coordination number of the complex $$[Co(en)_2Cl_2]Cl$$?

Accepted Answer

$$6$$

Question 5

Which of the following is the correct name for $$[Co(NH_3$)_6]Cl_3$?

Accepted Answer

hexaamminecobalt(III) chloride

Question 6

Which of the following ligands is considered a strong field ligand according to the spectrochemical series?

Accepted Answer

CN$$^-$$

Question 7

What is the geometry of a coordination complex with a coordination number of 6?

Accepted Answer

Octahedral

Question 8

Which type of isomerism is illustrated by $$[Co(NH_3$)_6][$$CrF_6$$] vs$$ $$[Cr(NH_3$)_6][$$CoF_6$$]$$?

Accepted Answer

Coordination isomerism

Question 9

In crystal field theory, which d-orbitals experience the greatest repulsion in an octahedral complex?

Accepted Answer

$$d_{z^2$}$$, $$d_{x^2$-y^2$$}$

Question 10

A transition metal complex absorbs light at 748 nm. What is the energy of the absorbed photon in kJ/mol? (Use $$E = \frac{hc}{\lambda}$$, $$h = 6.626 	imes 10$$^{-34}$$ J·s, c = 3.00$$ 	imes $$10^8 m/s$$, $$N_A = 6.022 	imes 10$$^{23}$$ mol$$^{-1}$$)

Accepted Answer

$$160 kJ/$$mol

Question 11

Which of the following complexes is diamagnetic?

Accepted Answer

$$[Co(CN)_6]^{3-}$$

Question 12

Predict the number of unpaired electrons on chromium in $$[Cr(en)_3]^{2+}$$, where ethylenediamine is a strong field ligand.

Accepted Answer

$$0$$

Question 13

Which of the following is the correct formula for triamminetriaquachromium(III) chloride?

Accepted Answer

$$[Cr(NH_3$)_3(H_2O)_3]Cl_3$

Question 14

Which of the following is NOT a correct rule for naming coordination compounds?

Accepted Answer

Prefixes are used for counter ions

Question 15

How many geometric and linkage isomers are possible for square planar $$Pt(NO_2$)_2Cl_2$$?

Accepted Answer

$$4$$

Question 16

Which of the following ligands can bind to a metal center through more than one atom, resulting in linkage isomerism?

Accepted Answer

NO$$_2^-$$

Question 17

Which of the following statements about tetrahedral complexes is TRUE?

Accepted Answer

All tetrahedral complexes are high spin

Question 18

Which of the following is the correct electron configuration for Ni$$^{2+} in$$ $$[Ni(H_2O)_4(OH)_2]$$?

Accepted Answer

$$[\mathrm{Ar}]\ 3d^8$

Question 19

Which of the following isomers of $$Pt(NH_3$)_2Cl_2 is $$used as an anti-tumor agent?

Accepted Answer

cis-platin

Question 20

If a complex absorbs light in the green region (around 490 nm), what color will it appear?

Accepted Answer

Red

Transition Metals and Coordination Chemistry: Structure, Bonding, and Properties

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