Transcript
Chemistry, 11e (Brown/LeMay/Brusten/Murphy (Brown/LeMay/Brusten/Murphy)) Chapter 24: Chemistry of Coordination Compounds 24.1 Multiple-Choice and Bimodal Questions
1) The coordination numers of coa!t(""") and of chromium(""") in their comp!e#es are a!ways $$$$$$$$$$% &) 4 B) ' C) 2 ) *) +
&nswer: * Diff: 1 Page Ref: Sec. 24.1
2) The coordination numer of p!atinum in comp!e#es is a!ways $$$$$$$$$$% &) 4 B) ' C) 2 ) *) +
&nswer: & Diff: 1 Page Ref: Sec. 24.1
) urin the formation of a coordination compound, the meta! acts as a $$$$$$$$$$% &) Lewis acid B) Br∅nsted acid C) &rrhenius acid nsted ase ase ) Br∅nsted *) Lewis ase
&nswer: & Diff: 1 Page Ref: Sec. 24.1
Chemistry, 11e (Brown/LeMay/Brusten/Murphy (Brown/LeMay/Brusten/Murphy)) Chapter 24: Chemistry of Coordination Compounds 4) urin the formation of a coordination compound, !iands act as $$$$$$$$$$% &) Lewis ases B) &rrhenius ases C) Br∅nsted acid ) Lewis acids *) &rrhenius acids
&nswer: & Diff: 1 Page Ref: Sec. 24.1
') The coordination sphere of a comp!e# consists of $$$$$$$$$$% &) the centra! meta! ion on!y B) the !iands C) the centra! meta! ion and the !iands onded to it ) the primary and secondary -a!encies *) coordination and steric numers
&nswer: C Diff: 1 Page Ref: Sec. 24.1
+) "n the fo!!owin reaction, .i2 is actin as a(n) $$$$$$$$$$% +
.i 2+ () + + 2 0(!) → .i( 2 0)+ 2+ (a) &) o#idiin aent B) Lewis acid C) precipitatin aent ) so!-ent *) !iand
&nswer: B Diff: 1 Page Ref: Sec. 24.1
Chemistry, 11e (Brown/LeMay/Brusten/Murphy (Brown/LeMay/Brusten/Murphy)) Chapter 24: Chemistry of Coordination Compounds 4) urin the formation of a coordination compound, !iands act as $$$$$$$$$$% &) Lewis ases B) &rrhenius ases C) Br∅nsted acid ) Lewis acids *) &rrhenius acids
&nswer: & Diff: 1 Page Ref: Sec. 24.1
') The coordination sphere of a comp!e# consists of $$$$$$$$$$% &) the centra! meta! ion on!y B) the !iands C) the centra! meta! ion and the !iands onded to it ) the primary and secondary -a!encies *) coordination and steric numers
&nswer: C Diff: 1 Page Ref: Sec. 24.1
+) "n the fo!!owin reaction, .i2 is actin as a(n) $$$$$$$$$$% +
.i 2+ () + + 2 0(!) → .i( 2 0)+ 2+ (a) &) o#idiin aent B) Lewis acid C) precipitatin aent ) so!-ent *) !iand
&nswer: B Diff: 1 Page Ref: Sec. 24.1
Chemistry, 11e (Brown/LeMay/Brusten/Murphy (Brown/LeMay/Brusten/Murphy)) Chapter 24: Chemistry of Coordination Compounds 3) ow many d e!ectrons are in the coa!t ion of ) [ Co(C.)+ ] 5 &) B) ' C) + ) 3 *) 4
&nswer: C Diff: 1 Page Ref: Sec. 24.1
6) 7hat is the chare on the comp!e# ion in M 2 [ 8eC!+ ] 5 &) 29 B) 2 C) 9 ) *) 49
&nswer: * Diff: 1 Page Ref: Sec. 24.1
;) 7hat is the o#idation numer of chromium in [ Cr(. ) ) 4 C!2 ] C! 5 &) 9 B) C) 2 ) 92 *) <
&nswer: B Diff: 1 Page Ref: Sec. 24.1
Chemistry, 11e (Brown/LeMay/Brusten/Murphy (Brown/LeMay/Brusten/Murphy)) Chapter 24: Chemistry of Coordination Compounds 1<) 7hat is the !iand in Ca ) [ 8e(C.)+ ] 2 5 &) Ca 2+ B) 8e)+ C) C. − )− ) 8e(C.)+ *) 8e2+
&nswer: C Diff: 1 Page Ref: Sec. 24.1
11) 7hat is the chare of the centra! meta! ion in Ca ) [ 8e(C.)+ ] 2 5 &) < B) 1 C) 2 ) *) +
&nswer: Diff: 1 Page Ref: Sec. 24.1
12) 7hat is the o#idation numer of coa!t in [ Co(.) )4 82 ] 5 &) 9 B) 2 C) 1 ) *) +
&nswer: B Diff: 1 Page Ref: Sec. 24.1
Chemistry, 11e (Brown/LeMay/Brusten/Murphy) Chapter 24: Chemistry of Coordination Compounds 1) The chare of the comp!e# ion in [ =n( 2 0))C!] C! is $$$$$$$$$$% &) < B) 19 C) 2 ) 1 *) 29
&nswer: Diff: 1 Page Ref: Sec. 24.1
14) The coordination numer for [ =n( 2 0))C!] C! is $$$$$$$$$$% &) ' B) 4 C) 2 ) 1 *) +
&nswer: B Diff: 2 Page Ref: Sec. 24.1
1') 7hat is the o#idation state of iron in Ca.a [ 8e(C.)+ ] 5 &) < B) 2 C) ) 4 *) +
&nswer: C Diff: 1 Page Ref: Sec. 24.1
Chemistry, 11e (Brown/LeMay/Brusten/Murphy) Chapter 24: Chemistry of Coordination Compounds 1+) 7hat is the coordination numer of iron in Ca.a [ 8e(C.)+ ] 5 &) 2 B) 6 C) 4 ) + *) 12
&nswer: Diff: 1 Page Ref: Sec. 24.1
13) 7hat is the coordination numer of coa!t in[ Co(.) )' C!] (.0) )2 5 &) 12 B) 6 C) 4 ) 2 *) +
&nswer: * Diff: 1 Page Ref: Sec. 24.1
+
16) 7hat is the o#idation state of chromium in [ Cr( 2 0) 4 C!2 ] 5 &) < B) 2 C) ) 92 *) 9
&nswer: C Diff: 1 Page Ref: Sec. 24.1
Chemistry, 11e (Brown/LeMay/Brusten/Murphy) Chapter 24: Chemistry of Coordination Compounds +
1;) 7hat is the coordination numer of chromium in[ Cr( 2 0) 4 C!2 ] 5 &) 6 B) + C) 4 ) 2 *) 12
&nswer: B Diff: 1 Page Ref: Sec. 24.1
2<) The >dentation> of a !iand is defined y $$$$$$$$$$% &) how many >dents> or >deceptions> there are in the coordination sphere of a comp!e# species it forms B) how many e!ectron donor atoms it uti!ies to form coordinate onds to the centra! meta! ion C) the tota! numer of !one pairs of e!ectrons it possesses ) how many meta! ions it can seuester from so!ution *) none of the ao-e
&nswer: B Diff: 1 Page Ref: Sec. 24.2
21) *T& is $$$$$$$$$$9dantate !iand% &) mono B) i C) tri ) tetra *) he#a
&nswer: * Diff: 1 Page Ref: Sec. 24.2
Chemistry, 11e (Brown/LeMay/Brusten/Murphy) Chapter 24: Chemistry of Coordination Compounds 22) 7hat is the meta! ion in the porphyrin of heme5 &) iron B) ca!cium C) mo!ydenum ) manesium *) ch!orophy!!
&nswer: & Diff: 1 Page Ref: Sec. 24.2
2) ow many iron atoms are coordinated in a hemo!oin mo!ecu!e5 &) 1 B) 2 C) ) 4 *) '
&nswer: Diff: 1 Page Ref: Sec. 24.2
24) The correct name for [ .i(.) )+ ] (.0) )) is $$$$$$$$$$% &) dinitrohe#aamminenic?e! ("") B) he#aamminenic?e! (""") trinitrate C) dinitrohe#aamminenic?e!ate (""") ) he#aamminenic?e! ("") nitrate *) he#aamminenic?e! (""") nitrate
&nswer: * Diff: 1 Page Ref: Sec. 24.2
Chemistry, 11e (Brown/LeMay/Brusten/Murphy) Chapter 24: Chemistry of Coordination Compounds 2') The names of comp!e# anions end in $$$$$$$$$$% &) 9o B) 9ium C) 9ate ) 9ous *) 9ic
&nswer: C Diff: 1 Page Ref: Sec. 24.3
2+) The correct name for .a ) [ Co8+ ] is $$$$$$$$$$% &) trisodium he#a?isf!uorocoa!t(""") B) trisodium he#a?isf!uorocoa!t("") C) trisodium he#a?isf!uorocoa!t("@) ) sodium he#af!uorocoa!tate(""") *) sodium he#af!uorocoa!tate("@)
&nswer: Diff: 1 Page Ref: Sec. 24.3
23) Tripheny!phosphine is often i-en the are-iated formu!a AAh ) % The correct name for h(AAh ) )) C! is $$$$$$$$$$% &) ch!orotripheny!phosphinerhodium B) ch!orotripheny!phosphinerhodium(") C) tris(tripheny!phosphine)ch!ororhodium(") ) ch!orotris(tripheny!phosphine)rhodium(") *) ch!orotris(tripheny!phosphine)rhodate(9")
&nswer: Diff: 1 Page Ref: Sec. 24.3
Chemistry, 11e (Brown/LeMay/Brusten/Murphy) Chapter 24: Chemistry of Coordination Compounds 26) "n $$$$$$$$$$, the onds are the same ut the spatia! arranement of the atoms is different% &) structura! isomers B) !in?ae isomers C) coordination9sphere isomers ) stereoisomers *) resonance structures
&nswer: Diff: 1 Page Ref: Sec. 24.4
2;) & eometrica! isomer with !i?e roups !ocated on opposite sides of the meta! atom is denoted with the prefi# $$$$$$$$$$% &) cis9 B) trans9 C) is9 ) tetra?is *) d9
&nswer: B Diff: 1 Page Ref: Sec. 24.4
2+
<) The comp!e# [ =n(.) )2 C!2 ]
does not e#hiit cis9trans isomerism% The eometry of
this comp!e# must e $$$$$$$$$$% &) tetrahedra! B) triona! ipyramida! C) octahedra! ) suare p!anar *) either tetrahedra! or suare p!anar
&nswer: & Diff: 1 Page Ref: Sec. 24.4
Chemistry, 11e (Brown/LeMay/Brusten/Murphy) Chapter 24: Chemistry of Coordination Compounds +
1) ow many isomers e#ist for the octahedra! co mp!e# ion [ Co(.) )4 82 ] 5 &) 1 B) 2 C) ) 4 *) '
&nswer: B Diff: 1 Page Ref: Sec. 24.4
2−
2) Trans − [ 8e( 2 0)2 C!4 ]
must e $$$$$$$$$
%$&) tetrahedra! B) octahedra! C) suare p!anar ) triona! ipyramida! *) !inear
&nswer: B Diff: 1 Page Ref: Sec. 24.4
) Lin?ae isomerism can on!y occur $$$$$$$$$$% &) in cis9isomers of octahedra! comp!e#es B) with coa!t comp!e#es C) with coordination numer + ) with tetrahedra! comp!e#es *) with !iands that ha-e more than one possi!e donor atom
&nswer: * Diff: 1 Page Ref: Sec. 24.4
Chemistry, 11e (Brown/LeMay/Brusten/Murphy) Chapter 24: Chemistry of Coordination Compounds 4) Meta!s with $$$$$$$$$$ e!ectron confiurations characteristica!!y form diamanetic, suare p!anar comp!e#es% &) d < B) d ; C) d + ) d 6 *) d1<
&nswer: Diff: 1 Page Ref: Sec. 24.6
') 7hat transition meta! is responsi!e for the co!or of ruy5 &) mananese B) coa!t C) titanium ) o!d *) chromium
&nswer: * Diff: 1 Page Ref: Sec. 24.6
24.2 Multiple-Choice Questions
1) 8ormation of a comp!e# species of M n + meta! ion with !iands often $$$$$$$$$$% &) >mas?s> oriina! chemica! properties of oth the M n + ion and the !iands B) reduces a-ai!ai!ity of the free M n + ions in so!ution C) may cause chanes in the ease with which M n + is reduced or o#idied ) a!ters oriina! physica! properties of M n + *) a!! of the ao-e
&nswer: * Diff: 1 Page Ref: Sec. 24.1
Chemistry, 11e (Brown/LeMay/Brusten/Murphy) Chapter 24: Chemistry of Coordination Compounds 2) 7hat is the most common eometry found in four9coordinate comp!e#es5 &) suare p!anar B) octahedra! C) tetrahedra! ) icosahedra! *) triona! ipyramida!
&nswer: C Diff: 1 Page Ref: Sec. 24.1
) The minimum numer of unshared -a!ence e!ectron pairs in the !iands of a coordination compound is $$$$$$$$$$% &) 1 B) 2 C) ) 4 *) '
&nswer: & Diff: 1 Page Ref: Sec. 24.1
4) The coordination numer of coa!t in CoC!) &) 2 B) C) 4 ) + *) 6
&nswer: Diff: 2 Page Ref: Sec. 24.1
g '.) is
$$$$$$$$$
%$ Chemistry, 11e (Brown/LeMay/Brusten/Murphy) Chapter 24: Chemistry of Coordination Compounds )− ') 7hat is the o#idation numer of .i in .i(C.)' D 5
&) 1 B) 2 C) ) 4 *) '
&nswer: B Diff: 1 Page Ref: Sec. 24.1
+) Chanes in the coordination sphere of a comp!e# compound may !ead to chanes in $$$$$$$$$$% &) co!or B) physica! properties C) chemica! properties ) stai!ity *) a!! of the ao-e
&nswer: * Diff: 1 Page Ref: Sec. 24.1
3) "n the compound, Ca.a [ 8e(C.)+ ] , what !iands are in the coordination sphere5 &) Ca 2+ B) .a + C) C. − ) 2 0 *) none of the ao-e
&nswer: C Diff: 1 Page Ref: Sec. 24.1
Chemistry, 11e (Brown/LeMay/Brusten/Murphy) Chapter 24: Chemistry of Coordination Compounds 6) 7hat are the respecti-e centra!9meta! o#idation state, coordination numer, and o-era!! chare on the comp!e# ion in .a 2 [ Cr(.) )2 (.CE)4 ] 5 &) F +F 91 B) F +F 1 C) 2F +F 92 ) 2F 4F 91 *) 1F +F 92
&nswer: C Diff: 2 Page Ref: Sec. 24.1
;) 7hich one of the fo!!owin species is paramanetic5 &) Cu + B) Cr )+ C) =n ) Ca + *) &
&nswer: B Diff: 1 Page Ref: Sec. 24.1
1<) 7hich of the fo!!owin comp!e#es has a coordination numer of +5 &) [ Co(en)2 C!2 ]
+
B) [ At(. ) ) 2 C!2 ] 2+
C) [ Cu(.) )4 ]
) [ &(.) )2 ]
+
*) .one of these comp!e#es has coordination numer +%
&nswer: & Diff: 2 Page Ref: Sec. 24.1
Chemistry, 11e (Brown/LeMay/Brusten/Murphy) Chapter 24: Chemistry of Coordination Compounds +
11) ow many !iands are there in the coordination sphere of [ Co(en)2 C!2 ] 5 &) B) + C) 4 ) 1 *) <
&nswer: C Diff: 1 Page Ref: Sec. 24.1
12) 7hat is the chare on the comp!e# ion in Ca 2 [ 8e(C.)+ ] 5 &) 9 B) 2 C) 29 ) 19 *) 49
&nswer: * Diff: 3 Page Ref: Sec. 24.1
1) & !iand with a sin!e donor atom is ca!!ed $$$$$$$$$$% &) a che!on B) a che!ate C) po!ydentate ) monodentate *) identate
&nswer: Diff: 1 Page Ref: Sec. 24.2
Chemistry, 11e (Brown/LeMay/Brusten/Murphy) Chapter 24: Chemistry of Coordination Compounds 14) 7hich of the fo!!owin is not a che!atin aent5 &) ch!oride anion B) *T& C) porphine ) ethy!enediamine *) o#a!ate anion
&nswer: & Diff: 1 Page Ref: Sec. 24.2
1') 7hat is the purpose of addin *T& to prepared foods5 &) to ?eep ions such as Ca 2+ in so!ution so the foods !oo? ood B) to comp!e# trace meta! ions that cata!ye decomposition reactions C) to comp!e# iron(""") ions so they can cata!ye protein decomposition on coo?in ) to aid in rownin of the surface durin coo?in *) to pre-ent disso!ution of the container in the food when stored for !on periods of time
&nswer: B Diff: 1 Page Ref: Sec. 24.2
1+) "n humans, what percent of asored iron is found in !ood5 &) 1' B) 2' C) 4< ) +< *) 3'
&nswer: * Diff: 2 Page Ref: Sec. 24.2
Chemistry, 11e (Brown/LeMay/Brusten/Murphy) Chapter 24: Chemistry of Coordination Compounds 13) The coordination numer and o#idation numer of the centra! atom in Mn(C0) 4 Br2 D are $$$$$$$$$ and $$$$$$$$$, respecti-e!y% &) 4, 1 B) +, 1 C) ', 2 ) 4, 2 *) +, 2
&nswer: * Diff: 2 Page Ref: Sec. 24.2
16) 7hat purpose wou!d sodium tripo!yphosphate ser-e in a deterent formu!ation5 &) to aid in remo-a! of rust stains from surfaces and from c!othes B) to aid in ?eepin the inside of washin machines c!ean and free from corrosion C) to impro-e the f!ow characteristics of the deterent in the o# ) to comp!e# and hence seuester meta! ions in hard water *) to reduce acteria! rowth in the deterent upon storae
&nswer: Diff: 1 Page Ref: Sec. 24.2
1;) 7hat are the donor atoms in a porphine mo!ecu!e5 &) . B) 0 C) E ) Br *) 8
&nswer: & Diff: 1 Page Ref: Sec. 24.2
Chemistry, 11e (Brown/LeMay/Brusten/Murphy) Chapter 24: Chemistry of Coordination Compounds 2<) 7hat meta! is comp!e#ed in ch!orophy!!5 &) iron B) chromium C) mananese ) -anadium *) manesium
&nswer: * Diff: 1 Page Ref: Sec. 24.2
21) 7hat form of hemo!oin is purp!ish9red5 &) myo!oin B) deo#yhemo!oin C) heme ) o#yhemo!oin *) none of the ao-e
&nswer: B Diff: 1 Page Ref: Sec. 24.2
22) ow many onds can ethy!enediamine form to a meta! ion5 &) 1 B) 2 C) ) 4 *) +
&nswer: B Diff: 1 Page Ref: Sec. 24.2
Chemistry, 11e (Brown/LeMay/Brusten/Murphy) Chapter 24: Chemistry of Coordination Compounds 2 Based on entropy considerations a!one, which homoeneous aueous eui!irium wou!d e e#pected to !ie to the riht5 − − − − &) &" 2 +2Br ⇔ &Br 2 +2" 2+ 2+ B) .i( 2 .C 2 4 . 2 )) + +.) ⇔ .i(. ) )+ + 2 .C2 4 . 2 2+ 2: − C) CoC! 4 + + 2 0 ⇔ Co( 2 0)+ + 4C! 2+ 2− ) 8e(. ) )+ + C 2< 1< .4 ⇔ 8e(. ) ) 2 (C 2< 1< . 4 ) + 4.)
*) Cu(. ) ) 4
2+
+ 2 0 ⇔ Cu( 2 0)+ 2+ + 4. )
&nswer: Diff: 4 Page Ref: Sec. 24.2
24) The che!ate effect is est attriuted to considerations of which type5 &) hydration B) entha!py C) entropy ) hydroen ondin *) resonance
&nswer: C Diff: 1 Page Ref: Sec. 24.2
2') 7hich one of the fo!!owin species is a potentia! po!ydentate !iand (che!atin aent)5 &) . ) B) C!− C) C. − ) 2 0 2− *) C 2 0 4
&nswer: * Diff: 1 Page Ref: Sec. 24.2
Chemistry, 11e (Brown/LeMay/Brusten/Murphy) Chapter 24: Chemistry of Coordination Compounds 2+) 7hat are the donor atoms in ferrichrome and how many of them are in one mo!ecu!e5 &) Cr, ' B) ., 4 C) 0, + ) 8e, 4 *) E, +
&nswer: C Diff: 1 Page Ref: Sec. 24.2
23) 7hich of the fo!!owin is a po!ydentate !iand5 &) ammonia B) o#a!ate ion C) ch!oride ion ) water *) hydro#ide ion
&nswer: B Diff: 1 Page Ref: Sec. 24.2
26) & comp!e# of correct!y written formu!a At(. ) ) ) BrDBr g 2 0 has which set of !iands in its inner coordination sphere5 &) . ) B) . ) and 2 Br 9 C) . ) and 1 Br 9 ) . ) , 1 Br 9 − , and 1 2 0 *) . ) , 2 Br 9 , and 1 2 0
&nswer: C Diff: 1 Page Ref: Sec. 24.3
Chemistry, 11e (Brown/LeMay/Brusten/Murphy) Chapter 24: Chemistry of Coordination Compounds 2;) 7hich one of the fo!!owin is the correct formu!a for potassium diauatetrach!oromo!ydate (""")5 &) 2 Mo( 2 0) 2 C! 4 D B) Mo( 2 0) 2 C! 2 DC! 2 C) Mo( 2 0) 2 C! 4 D ) Mo( 2 0) 2 DC! 4 *) )Mo( 2 0) 2 C! 4 D
&nswer: C Diff: 1 Page Ref: Sec. 24.3
<) oes either or oth cis9 or trans9Mn(en) 2 Br 2 D ha-e optica! isomers5 &) cis on!y B) trans on!y C) oth cis and trans ) neither cis nor trans *) Mn(en) 2 Br 2 D does not e#hiit cis9trans isomerism%
&nswer: & Diff: 1 Page Ref: Sec. 24.4
1) Lin?ae isomerism wou!d most !i?e!y occur when which of the fo!!owin !iands is present5 &) 2 0 B) . ) C) C!− ) A8 ) *) .CE
−
&nswer: * Diff: 1 Page Ref: Sec. 24.4
Chemistry, 11e (Brown/LeMay/Brusten/Murphy) Chapter 24: Chemistry of Coordination Compounds 2) "somers whose !iands can ind direct!y to a meta! or e outside the !attice are ca!!ed $$$$$$$$$% &) !in?ae isomers B) rotationa! isomers C) coordination sphere isomers ) eometric isomers *) optica! isomers
&nswer: C Diff: 1 Page Ref: Sec. 24.4
) 7hich of the fo!!owin wi!! disp!ay optica! isomerism5 &) suare9p!anar h(C0) 2 C! 2 D9 2+
B) suare9p!anar At( 2 .C 2 4 . 2 ) 2 D )+ C) octahedra! Co(. ) ) + D 2+ ) octahedra! Co(. ) )' C!D )+ *) octahedra! Co( 2 .C 2 4 . 2 ) ) D
&nswer: * Diff: 2 Page Ref: Sec. 24.4
4) 7hich one of the fo!!owin comp!e#es wou!d most !i?e!y ha-e tetrahedra! eometry5 2− &) .iC! 4 D 2+ B) Co( 2 0) + D )+ C) Cr(. ) ) + D ) ) 8e(C.) + D
*) At(. ) ) 2 C! 2 D
&nswer: & Diff: 1 Page Ref: Sec. 24.4
Chemistry, 11e (Brown/LeMay/Brusten/Murphy) Chapter 24: Chemistry of Coordination Compounds ') 7hich one of the fo!!owin comp!e#es can e#hiit eometrica! isomerism5 &) At(. ) ) 2 C! 2 D (suare p!anar) B) =n(. ) ) 2 C! 2 D (tetrahedra!) 2+ C) Cu(. ) ) 4 D (suare p!anar) 2+ ) Cu(. ) ) ' C!D (octahedra!) *) &!! of the ao-e can e#hiit eometrica! isomerism%
&nswer: & Diff: 1 Page Ref: Sec. 24.4
+) Coordination sphere isomers &) ha-e the same mo!ecu!ar formu!a and coordination numer% B) ha-e the same mo!ecu!ar formu!a ut different coordination numers% C) ha-e different mo!ecu!ar formu!as ut the same c oordination numer% ) ha-e different mo!ecu!ar formu!as and different coordination numers% *) are the same as resonance structures%
&nswer: & Diff: 2 Page Ref: Sec. 24.4
3) & racemic mi#ture is &) an eua! mi#ture of oth enantiomers of an optica!!y acti-e species% B) a mi#ture of an optica!!y acti-e species with an optica!!y inacti-e species% C) an eua! mi#ture of cis9 and trans9isomers% ) a mi#ture of meta! ions and !iands in eui!irium% *) a mi#ture of structura! isomers%
&nswer: & Diff: 1 Page Ref: Sec. 24.4
Chemistry, 11e (Brown/LeMay/Brusten/Murphy) Chapter 24: Chemistry of Coordination Compounds 6) Based on e!ectron confiuration, which is most !i?e!y co!or!ess5 2+ &) Cu(. ) ) 4 D 2+ B) Cd(. ) ) 4 D 2+ C) .i(. ) ) + D 2+ ) Cr(. ) ) ' C!D 2+ *) Co(. ) ) + C!D
&nswer: B Diff: 3 Page Ref: Sec. 24.5
;) & comp!e# that asors !iht at 3<< nm wi!! appear $$$$$$$$$$% &) red B) reen C) ye!!ow ) orane *) -io!et
&nswer: B Diff: 3 Page Ref: Sec. 24.5
4<) & meta! comp!e# asors !iht main!y at 42< nm% 7hat is the co!or of the comp!e#5 &) reen B) ye!!ow C) red ) orane *) purp!e
&nswer: B Diff: 3 Page Ref: Sec. 24.5
Chemistry, 11e (Brown/LeMay/Brusten/Murphy) Chapter 24: Chemistry of Coordination Compounds 41) 7hich one of the fo!!owin sustances has three unpaired d e!ectrons5 2+ &) =n(. ) ) 4 D 4+ B) @( 2 0) + D
+ C) &(. ) ) 2 D 2+ ) Cu(. ) ) 4 D )− *) Cr(C.) + D
&nswer: * Diff: 2 Page Ref: Sec. 24.5, 24.6
42) 7hich one of the fo!!owin comp!e# ions wi!! e paramanetic5 2+ &) 8e( 2 0) + D (!ow spin) )+ B) 8e( 2 0) + D (!ow spin) )+ C) Co( 2 0) + D (!ow spin) 2+ ) =n( 2 0) 4 D 2+ *) =n(. ) ) 4 D
&nswer: B Diff: 2 Page Ref: Sec. 24.5, 24.6
4) Comp!e#es containin meta!s with d < e!ectron confiurations are typica!!y co!or!ess ecause &) there is no d e!ectron that can e promoted -ia the asorption of -isi!e !iht% B) the empty d orita!s asor a!! of the -isi!e wa-e!enths% C) there are no d e!ectrons to form onds to !iands% ) a comp!e# must e chared to e co!ored% *) d e!ectrons must e emitted y the comp!e# in order for it to appear co!ored%
&nswer: & Diff: 1 Page Ref: Sec. 24.6
Chemistry, 11e (Brown/LeMay/Brusten/Murphy) Chapter 24: Chemistry of Coordination Compounds 44) Comp!e#es containin meta!s with d1< e!ectron confiurations are typica!!y $$$$$$$$$$% &) -io!et B) !ue C) reen ) ye!!ow *) co!or!ess
&nswer: * Diff: 1 Page Ref: Sec. 24.6
4') Comp!e#es containin meta!s with which one of the fo!!owin e!ectron confiurations are usua!!y co!or!ess5 &) d 2 B) d1 C) d ' ) d 6 *) d1<
&nswer: * Diff: 1 Page Ref: Sec. 24.6
4+) 7hich one of the fo!!owin is a stron9fie!d !iand5 &) C!− B) . ) C) 2 0 ) 8− *) C. −
&nswer: * Diff: 1 Page Ref: Sec. 24.6
Chemistry, 11e (Brown/LeMay/Brusten/Murphy) Chapter 24: Chemistry of Coordination Compounds 43) Consider a comp!e# in which mananese (""") is onded to si# identica! !iands% 7hich one of the fo!!owin !iands wi!! resu!t in the sma!!est -a!ue of G5 &) C!− B) . ) C) 2 0 ) 8− *) C.
−
&nswer: & Diff: 1 Page Ref: Sec. 24.6
46) Based on the crysta!9fie!d strenths 89 < C 2 C. < . ) < .0 29 < C.9 which Co(""") comp!e# is most !i?e!y hih9spin5 )+ &) Co(. ) ) + D )− B) Co(.0 2 ) + D )− C) Co(C.) + D )− ) Co8 + D )+ *) Co(C/ ) C.) + D
&nswer: Diff: 1 Page Ref: Sec. 24.6
4;) The attraction of a meta! to a neutra! !iand is due to $$$$$$$$$$ ondin% &) ionic B) co-a!ent C) ion9dipo!e ) dipo!e9dipo!e *) hydrophoic
&nswer: C Diff: 2 Page Ref: Sec. 24.6
Chemistry, 11e (Brown/LeMay/Brusten/Murphy) Chapter 24: Chemistry of Coordination Compounds '<) 7hich of the fo!!owin statements is (are) fa!se5 &) The reater the enery ap in a meta! comp!e#, the shorter the wa-e!enth of !iht the comp!e# wi!! asor% B) Comp!e# co!or depends on oth the meta! and the !iand% C) Meta! comp!e#es with an ammonia !iand ha-e a !arer enery ap than the correspondin f!uoride comp!e#es% ) Etron fie!d !iands are associated with !ow enery aps% *) Both & and C
&nswer: Diff: 3 Page Ref: Sec. 24.6
− − '1) Based on the crysta!9fie!d strenths C! < 8 < 2 0 < . ) < 2 .C 2 4 . 2 , which octahedra! Ti(""") comp!e# e!ow has its d9d e!ectronic transition at shortest wa-e!enth5
)+ &) Ti(. ) ) + D )+ B) Ti( 2 .C 2 4 . 2 ) ) D )+ C) Ti( 2 0) + D
− ) TiC! + D )
)− *) Ti8 + D
&nswer: B Diff: 1 Page Ref: Sec. 24.6
Chemistry, 11e (Brown/LeMay/Brusten/Murphy) Chapter 24: Chemistry of Coordination Compounds '2) 7hich one of the fo!!owin ions cannot form oth a hih spin and a !ow spin octahedra! comp!e# ion5 &) 8e)+ B) Co 2+ C) Cr )+ ) Mn )+ *) Cr 2+
&nswer: C Diff: 2 Page Ref: Sec. 24.6 ') Hsin the fo!!owin are-iated spectrochemica! series, determine which comp!e# ion is most !i?e!y to asor !iht in the red reion of the -isi!e spectrum% − − sma!! sp!ittin C! < 2 0 < . ) < C. !are sp!ittin
2− &) CuC! 4 D
B) Cu( 2 0) 4 D
2+
2+ C) Cu(. ) ) 4 D 2− ) Cu(C.) 4 D *) not enouh information i-en to determine
&nswer: & Diff: 1 Page Ref: Sec. 24.6
'4) 7hich of the fo!!owin cannot form oth hih9 and !ow9spin octahedra! comp!e#es5 &) Mn 2+ B) @ 2+ C) Co)+ ) Cr 2+ *) &!! of the ao-e can form oth hih9 and !ow9spin comp!e#es%
&nswer: B Diff: 2 Page Ref: Sec. 24.6
Chemistry, 11e (Brown/LeMay/Brusten/Murphy) Chapter 24: Chemistry of Coordination Compounds
'') 7hich of the fo!!owin can form oth hih9 and !ow9spin octahedra! comp!e#es5 &) Cr 2+ B) Cr )+ C) =n 2+ ) Cu + *) &!! of the ao-e can form either hih9 or !ow9spin comp!e#es%
&nswer: & Diff: 1 Page Ref: Sec. 24.6 )+ '+) ow many d e!ectrons are associated with the meta! ion in Cr(. ) )+ D 5 &) 1 B) 2 C) ) 4 *) '
&nswer: C Diff: 3 Page Ref: Sec. 24.6
24.3 Short Answer Questions
1) 7hat is the o#idation state of the iron atom in Ca.a8e(C.) + D 5
&nswer: Diff: 2 Page Ref: Sec. 24.1
2) The most common coordination numers are $$$$$$$$$
%$&nswer: 4 and + Diff: 1 Page Ref: Sec. 24.1
Chemistry, 11e (Brown/LeMay/Brusten/Murphy) Chapter 24: Chemistry of Coordination Compounds ) 7hat is the coordination numer of the iron atom in Ca.a8e(C.) + D 5
&nswer: + Diff: 1 Page Ref: Sec. 24.1
4) Ei#9coordinate comp!e#es enera!!y ha-e $$$$$$$$$$ eometry%
&nswer: octahedra! Diff: 1 Page Ref: Sec. 24.1
') The numer of >free> ch!oride ions in an ionic coordination compound can e determined y treatin the compound with $$$$$$$$$
%$&nswer: &.0) Diff: 1 Page Ref: Sec. 24.1
+) The secondary -a!ence in meta! ion comp!e#es is ca!!ed the $$$$$$$$
%$&nswer: coordination numer Diff: 1 Page Ref: Sec. 24.1
3) 7ernerIs theory of primary and secondary -a!ences for transition meta! comp!e#es has i-en us the concepts of $$$$$$$$$$ and $$$$$$$$$
%$&nswer: o#idation state and coordination numer Diff: 1 Page Ref: Sec. 24.1
Chemistry, 11e (Brown/LeMay/Brusten/Murphy) Chapter 24: Chemistry of Coordination Compounds 6) Transition meta! ions with empty -a!ence orita!s act as $$$$$$$$$
%$&nswer: Lewis acids Diff: 1 Page Ref: Sec. 24.1
;) 7hat is the o#idation numer of the centra! meta! in Mo( 2 0) ' .0 ) DC! 2
&nswer: Diff: 1 Page Ref: Sec. 24.1
1<) efine the che!ate effect%
&nswer: Che!ate effect J an increased stai!ity of comp!e# compounds formed with che!atin (po!ydentate) !iands compared to those formed with monodentate !iands% Diff: 1 Page Ref: Sec. 24.2
11) The che!ate effect is enhanced y po!ydentate !iand indin ecause of the chane in $$$$$$$$$
%$&nswer: entropy Diff: 2 Page Ref: Sec. 24.2
12) List three of the ten transition meta!s reuired for human !ife%
&nswer: &ny three of: Co, Cu, Cr, 8e, Mn, @, =n, .i, Mo, Cd Diff: 1 Page Ref: Sec. 24.2
Chemistry, 11e (Brown/LeMay/Brusten/Murphy) Chapter 24: Chemistry of Coordination Compounds 1) Myo!oin has $$$$$$$$$$ heme roup(s) that ind(s) $$$$$$$$$
%$&nswer: 1F o#yen Diff: 1 Page Ref: Sec. 24.2
14) "n photosynthesis, $$$$$$$$$$ mo!es of photons are reuired to form one mo!e of $$$$$$$$$
%$&nswer: 46F !ucose Diff: 2 Page Ref: Sec. 24.2
1') "n the !ea-es of p!ants, -isi!e !iht is asored y a compound ?nown as $$$$$$$$$$, and is aided y a $$$$$$$$$$ ion onded to a porphyrin rin%
&nswer: ch!orophy!!F M Diff: 2 Page Ref: Sec. 24.2
1+) 7hat is the mechanism used in humans to comat !ood acteria! rowth -ia depri-ation of iron5
&nswer: fe-er Diff: 2 Page Ref: Sec. 24.2
13) & !are difference in formation constant (f) of a po!y9 -ersus monodentate !iand is ca!!ed $$$$$$$$$
%$&nswer: che!ate effect Diff: 1 Page Ref: Sec. 24.2