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Give the number of geometrical isomers for the octahedral compound [MA2B2C2],where A,B,and C represent ligands.


A) 1
B) 2
C) 3
D) 5
E) none of these

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Which of the following is not a typical step in metallurgy?


A) reduction
B) refining
C) alloying
D) roasting
E) transmutation

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What transition metal is used in stainless steel?


A) nickel
B) titanium
C) chromium
D) iridium
E) niobium

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Which of the following is true in describing the crystal field model?


A) The metal ion and ligand interaction is treated as a Lewis acid-base interaction.
B) The ligands are treated as negative point charges.
C) The metal ion-ligand bonds are considered to be completely ionic.
D) The electrons are assumed to be localized.
E) None of the above is true.

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What heavy metal is the most abundant and most important to our civilization?


A) iron
B) gold
C) magnesium
D) cobalt
E) copper

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The strength of steel is due to the effect of what substance with the iron?


A) copper
B) carbon monoxide
C) sulfur
D) carbon
E) zinc

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Which of the following complexes shows geometrical isomerism?


A) [Co(NH3) 5Cl]SO4
B) [Co(NH3) 6]Cl3
C) [Co(NH3) 5Cl]Cl2
D) K[Co(NH3) 2Cl4]
E) none of these

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Here are some crystal field representations of d electrons in an octahedral complex: I) Here are some crystal field representations of d electrons in an octahedral complex: I) II) III) IV) V) Choose the representation that fits the transition metal atom in the following species: -[Co(NH<sub>3</sub>) <sub>4</sub>Br<sub>2</sub>]<sup>+</sup> A) representation I B) representation II C) representation III D) representation IV E) representation V II) Here are some crystal field representations of d electrons in an octahedral complex: I) II) III) IV) V) Choose the representation that fits the transition metal atom in the following species: -[Co(NH<sub>3</sub>) <sub>4</sub>Br<sub>2</sub>]<sup>+</sup> A) representation I B) representation II C) representation III D) representation IV E) representation V III) Here are some crystal field representations of d electrons in an octahedral complex: I) II) III) IV) V) Choose the representation that fits the transition metal atom in the following species: -[Co(NH<sub>3</sub>) <sub>4</sub>Br<sub>2</sub>]<sup>+</sup> A) representation I B) representation II C) representation III D) representation IV E) representation V IV) Here are some crystal field representations of d electrons in an octahedral complex: I) II) III) IV) V) Choose the representation that fits the transition metal atom in the following species: -[Co(NH<sub>3</sub>) <sub>4</sub>Br<sub>2</sub>]<sup>+</sup> A) representation I B) representation II C) representation III D) representation IV E) representation V V) Here are some crystal field representations of d electrons in an octahedral complex: I) II) III) IV) V) Choose the representation that fits the transition metal atom in the following species: -[Co(NH<sub>3</sub>) <sub>4</sub>Br<sub>2</sub>]<sup>+</sup> A) representation I B) representation II C) representation III D) representation IV E) representation V Choose the representation that fits the transition metal atom in the following species: -[Co(NH3) 4Br2]+


A) representation I
B) representation II
C) representation III
D) representation IV
E) representation V

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The geometry of a coordination compound with a coordination number of 4 is


A) tetrahedral,in order to minimize repulsions between the ligands
B) octahedral,since there are two different positions possible for each ligand
C) square planar,to allow room for the counterion because the ligands take up so much space
D) linear,since there are two ligands on each side of the transition metal
E) tetrahedral or square planar,but too difficult to predict based on the information given

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A d6 ion (Fe2+) is complexed with six strong-field ligands (for example,SCN-) .What is the number of unpaired electrons in this complex?


A) 0
B) 1
C) 2
D) 3
E) 4

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Pig iron usually contains about 5%:


A) aluminum
B) oxygen
C) sodium
D) sulfur
E) carbon

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Define stereoisomerism.

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Stereoisomers have the same bo...

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Suppose you are studying coordination compounds of Co(II) with the ligand pyridine (py,C5H5N,molar mass = 79.10) .You isolate a crystalline compound,and since the only available anions are Cl- and NO3-,you hypothesize the empirical formula of the coordination compound must be Cow(py) x(Cl) y(NO3) z. -You discover that the complex decomposes in water.You dissolve 0.1000 g of the complex in H2O and add excess NaHg(SCN) 4,which precipitates Co(II) as CoHg(SCN) 4(s) .After the precipitate is washed and dried,its mass is 0.1102 g.How many grams of cobalt are contained in 0.1000 g of the complex?


A) 0.1102
B) 0.0396
C) 0.0132
D) 0.437
E) 0.0548

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The election configuration of Mn2+ is [Ar] 4s23d3.

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What is the electron configuration of the Ni(II) ion?


A) [Ar] 4s23d6
B) [Ar] 4s13d7
C) [Ar] 4s23d8
D) [Ar] 3d8
E) none of these

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How many ligands are in this representative drawing of a complex ion? How many ligands are in this representative drawing of a complex ion? A) 1 B) 3 C) 6 D) 7 E) 8


A) 1
B) 3
C) 6
D) 7
E) 8

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How many unpaired electrons are found in each of the following complex ions? -Fe(CN)64-

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Which of the following is incorrect concerning the 3d,4d,and 5d transition series?


A) There is a significant increase in radius in going from the 3d to the 4d metals,but the 4d and 5d metals are similar in size.
B) There is a general decrease in size going from left to right for each of these series due to the increasing nuclear charge.
C) The separation of hafnium and zirconium found together in nature is difficult due to their similarities in chemistry,which is attributed to their virtually identical sizes.
D) Cerium through lutetium exhibits what is referred to as the lanthanide contraction.
E) All of the above are correct.

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The ____ isomer of the complex Ni(en) 2Cl2 exhibits optical isomers,but the _____ isomer does not.


A) cis,trans
B) trans,cis
C) Both isomers exhibit optical isomers.
D) Neither isomers exhibit optical isomers.
E) Depends on the wavelength of plane-polarized light used.

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Which of the following coordination compounds will form a precipitate when treated with an aqueous solution of AgNO3?


A) [Cr(NH3) 3Cl3]
B) [Cr(NH3) 6]Cl3
C) [Cr(NH3) Cl]NO3
D) Na3[Cr(CN) 6]
E) Na3[CrCl6]

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