Multiple
Choice
Identify the letter of the choice that best completes the statement or answers the
question.
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1.
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Which element from the first
transition series does NOT react with hydrochloric acid? a. | titanium | b. | chromium | c. | cobalt | d. | nickel | e. | copper | | |
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2.
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All of the following molecules
or ions can act as polydentate ligands EXCEPT ____. a. | phenanthroline (C12H8N2) | b. | ethylenediaminetetraacetate ion
((O2CCH2)2NCH2CH2N(CH2CO2)24-) | c. | oxalate ion (C2O42-) | d. | ethylenediamine
(H2NCH2CH2NH2) | e. | methylamine (CH3NH2) | | |
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3.
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What is the oxidation state of
iron in K3[Fe(CN)6]?
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4.
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What is the oxidation state of
chromium in
[Cr(NH3)2(H2O)2Cl2]Cl?
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5.
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What is the name of the
compound having the formula
[Cr(en)2(H2O)2]SO4? a. | dihydroxodiethlyenediaminechromate(II) sulfate | b. | diaquabis(ethylenediamine)chromium(II) sulfate | c. | bis(ethylenediamine)diaquachromium(II) sulfate | d. | diaquebis(ethylenediamine)sulfatochromium(II) | e. | diaquabis(ethylenediamine)sulfatochromate(II) | | |
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6.
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What is the formula for
dichlorobis(phenanthroline)chromium(III) chloride? a. | [Cr(phen)2]Cl3 | b. | [CrCl3(phen)2] | c. | Cl[CrCl2(phen)2] | d. | [CrCl2(phen)2]Cl | e. | [CrCl (phen)2]Cl2 | | |
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7.
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What are the possible
geometries of a metal complex with a coordination number of 4?
1. | square planar | 2. | tetrahedral | 3. | octahedral | | |
a. | 1 only | b. | 2 only | c. | 3 only | d. | 1 and 2 | e. | 1, 2, and 3 | | |
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8.
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Which of the following
compounds may have linkage isomers? a. | [Cr(H2O)4Cl2]Cl | b. | [Cr(H2O)5(SCN)]SO4 | c. | [Cr(H2O)4Cl2]SCN | d. | [Cr(H2O)5Cl](NO2)2 | e. | [Cr(NH3)4Cl2]Cl | | |
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9.
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Which one of the following
complex ions has an optical isomer? a. | [ZnCl4]2- | b. | [Zn(en)2]2+ | c. | [Zn(NH3)2en]2+ | d. | [Co(H2O)4en]2+ | e. | [Co(phen)3]2+ | | |
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10.
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Determine the number of
unpaired electrons in an octahedral, high-spin iron(II) complex.
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