~ Werner's Theory of Coordination Compounds ~ 1. Which of the following is most likely structure of CrCl,.6H,0 if 1/3 of total chlorine of the compound is precipitated by adding AgNO, to its aqueous solution? (1) CrCl,.61,0 (2) [Cr(H,0),C1](H,0); (3) [CrC1,(H,0),]C12H,0 (4) [CrCI(H,0),]Cl-H,0 2. The number of ions per mole of complex Co(NH),Cl, in aqueous solution will be a9 Q) 4 (@) 3 (4) None. 3. Which of the following is non-ionisable? (1) PONH,),Cl, (2) PUNH,),Cl, (3) PONH,),Cl, (4) PUNH;),Cl, 4. One mole of complex compound [Co(NH;);Cl,] gives 3 ‘moles of ions on dissolution in water. One mole of same 6. 7 complex reacts with two moles of AgNO; to ygj, moles of AgCl,,). The complex is [Co(NH,),ClaICINH, (2) [Co(NH,),Cijq,y, [Co(NH3);CHCl, (4) [Co(NH,), Cay, a ratio of primary valency and secondary vale, the metal ion in the coordination compound K,.Ni( is () 1:2 Q) @) 2:1 (4) 3:1 Which of the following has the highest molar conducive in solution? (1) [PUNH5).]Cl, (2) [P(NH,),Clil, G) [Pt(NH;),CLICI, (4) [PUNH;);ChCl Select CORRECT about PtCl,.4NH; complex sit 1. All the chlorides are bonded by vale)IL. Alle chlorides are bonded by secondary valency I Allthe NH, are bonded by secondary valena IV, Half of the chlorides are bonded with seesadary valency a ka @) Mtv @) Hut (4) Only ttt Which of the following has the highest molar conductivity under similar conditions? (1) Diamminedichloroplatioam(tt) {@) Tetraammindichlorocobalt( I) chloride {3) Potassium hexacyanoferrate(It) (4) Hexaaquachromium(Il}) chloride 4, Ifexcess of AgNO, solution is added to 100 mL of a (0.024 M solution of dichlocobis(ethylenediamine)cobalt {il chloride, how many mole of AgCl be precipitated? (1) 0.0012 Q) 0.0016 @) 0.0024 ) 0.0048 1M. Inthe compound, CoC, SNH. (1) Allthe CL atoms show primary valeney ony. (2) Two Cl atoms show primary valeney and one Clatom shows secondary valency (3) Two atoms show primary valeney and one Clatom shows primary valency as well as secondary valency. (4) All the Cl atoms show secondary valency. Definitions of Some Important Terms Pertaining ‘0 Coordination Compounds ~ When [CotNH,), JC nize in water the number fons Produced are 4 63 "2 The coordination M3 a6 The rouperoups ina compound (0) tonic @) Coordinate 4 Whatisthe oxida teidges species? a6 (010) () 46 o8 'S. The oxidation st [Mo,0,(C,H0 Coordination Compounds | 16:1 os ass o 16 Whichotte owing (1) 1,10-phenanthroline a ©) Dinatyighoume ©) EDTA (4) Trt entoanine 17. The tom ing complex conpund i mated a {FeH,0}NOISO, heexdon sae oon on ae 2 w3 MR The corte ocidon unbrf¥in the flowing compound [SOAS At be ) Wand ©) tune 0) eas @ ead 19, Distivenstanie i (0) Chating agent Q) Pont gad ©) Talent —(@) Allotte 20. Inthe cordinaton compound, KiNCH), cnlan toi a ol oa = Nomenclature of Coordination Compounds ~ The correct IUPAC name for the compound [CoqNH,),CKONO)}CHs (4) Tetraamminechloridonitocobale (I) chloride (2) Chloronitrtotetraminecobal (I) chloride {G) Diehloronitritotetraminecobat (II) (4) Tetrasmminechlordonitrito-O-cobalt (II) chloride 22, IUPAC name of complex, Ks[AUCO0s] 8 alumi oxalate frioxalatoaluminate (I) aluminium (oxalate {rioxalatoluminate (VI) eof the compound [CUNH,) NO), J, the ao a2 au operoxoferate (ion speroxofertate}) ion18.16 | chemistry 2) bis(cyclopentadieny) iron It) (3) Bosh optical and geometrical isomerism G) Ferrocene (4) None ofthese (4) No ans isomerism i fin sg planar cp MI) is (1) May (2) Mab ™ CH KOEN cD KINUCMYON! ——«&) aad 21. Thecomet UPAC name of 20H] (Nth ae example 28, The IUPAC name of [Ni(NH;)] [NiCL] is (1) [Co(NH,).Br]SO, & [Co(NH,).S0,]Br () Teenie eran) @) (CONE NDaCh & oan yoNOIG, (2) Teams) erconnistll) 6) lenox eraonciane 6) Themmineidelewetbnsoickdat ——__@) eattipereaig & aeaneaeng (1) Cationic complex ion (2) Anionic complex ion & ae it \ fe) Nears waraeeyse Nas o x o NN TUPAC name for the complex [Co(NO,)(NH,)«JCl is VA a NI JIN (1) Nitrito-N-pentaamminecobalt(II1) chloride - bai lsomerism in Coordination Compounds — i a 31. [CofNH,),Br]S0, and [Co(NH,),SO,]Br are related to A rieae 39. Which of the following compound show op (1) Tonisation isomers (2) Linkage isomers re Co {@) Co-ordination isomers (4) Optical isomers {eis (costy,Ch 32. Which one of the following has highest number of (Gi ams (Coten)s correct answer using codes given belo a @) Giyand cid & (Giana) | ical isomerism is found in coorite™ is having coordination number @3 hedral) @6 F the following give maximum aus" 4M. A.complex Hs)4Cls} 2) (Nicennestil O,Nea),] (4) [CaSCN)INE the following complexes exhibit 9" (1) Optical usin eo ytd os ihioeyanatoctroiul! a(2) ci-diamminedic (G) rans-diaminedic: ae In which case racemic mixture is obtained on mixing is 1 molar ratio? yeinatoplatinum(it) a mtr images in 1 () [Cxen)t (2) [NqDMG) {3) cis (CuGiy);) (4) Inall case “M_PUNH,(NO,)Py(NH.OH) will form geometrical isomers a2 @3 @4 as 46. Isomerism exhibited by [CH(NH,),(H,0),CL]" are 2) Hydrate, optic (1) Tonisation, optical (4) Coordinate, eometrical al, optical (3) Geomet 46 Complex compound [Ag(CN),]° can show which @) Hydrated (1) Optical (@) Geometrical (3) Linkage 41, Typeofisomerism which is shown by [P(CI:Br observed in () (CoC, Bey 6) (PCB) 4K Which ofthe following has wo geometrical isomers and is also a non-ionisable complex? (1) PIC, 3NH, (2) PICh,6NH, (G) PICl,2NH, ) PICl,ANH, 49. Which of the following complexes produce ppt. with ‘AgNO, and exist in two geometrical isomeric form? (1) PICI,4NH (@) PC 3M @) PIC, 4NH, For which ofthe following tetra are possible? () [MBrCl 8) [MBrCHOHDT ~ Bonding in Coordination Cot 51, Whi is tren ease of [(CON (0) Hybridisation of iis 7° (2) Tetahedal shape of molecule (3) Diamagnetic (9) Altar correct SL ICoFgP is (1) Paramagnetis, square plat (2) Parumagnetic,oahedl (3) Diamagnet,octahetal (4) Diamagnetc, square Planat $3. Amongst NCO). (NWCNDE @) [Coten,)" @) [Pcl Nog? complex. Coordination Compounds | 16.17 CL]? are diamagnetic and (1) Ni(CO), and [NW(CN)} is paramagnetic 2) [NicL,}“and[NW{CN),)* are diamagnetic and Ni(CO}g is paramagnetic ) Ni(CO), and [Ni(CN),}* are diamagnetic and [NICL I” is paramagnetic : (4) Ni(CO),is diamagnetic and (NiCL and (NW(CN),F are paramagnetic 4. The shape of cuprammonium ion is (1) Square planar (2) Octahedral G) Tetrahedeal (4) Trigonal Which ofthe following species represents the example s of dig? hybridization? (D) [FetCN)P 2) (NIENg (3) [ANCNST @ [CAND 6, The complex [PUNH,))"has__ structure. (1) Square planar (@) Tetrabedral (3) Pyramidal (4) Pentagonal 157, The geometry of N(CO), and Ni(PPhs,Cl, are (1) Both square planar (@) Tetrahedal and square planer respectively {G) Both tetrahedral (4) Square planer and tetrahedral respectively ‘58, Which statement is incorrect? (1) [N{CO),|tetrabedeal, paramagnetic (2) [N(CN)g) square planer, diamagnetic G) [Ni(CO),] tetrahedral, diamagnetic (4) [NCL] teahodral, paramagnetic 5 I ligand, the number of18.18 | cnemisry 63. Which one ofthe following complexesisan outer orbital 73. complex? Q) FFeen),s" (2) [Mn(cn),I* 3) [CotNH,) 4) INH? 64. Which ofthe following cyano compounds would exhibit lowest value of pra magnetic beaviou?[AL.no.Cr=24, Mn=25,Fe=26,Co= 27} a (1) [Co(CN),I (2) [Fe(CN)gf (3) [Mn(CN)g] (4) [CHCN) I 65, The vale ofthe sin only magnetic moment for one of 75, the fllowing configurations is284 BM, The correct one (1) ef (in strong ligand field) 2) d Cin weak as wells rong eds) i (G) d (in weak ligand field) (4) df (in strong ligand field). 66, Nickel (228) combines wth ninesive monontat ligand X" to form a paramangetic complex [NiX,]. The numberof npied electron inthe nike and geomet fe ees eae at ee (1) Oneandtemtedal (2) Two and teed! (One and square planar (4) Two and square pacar 77 67. Whichone ofthe illowinghasa squat plana gst? (a) (Nic 2) (Pcl? 3) [Coch (4) [FeCh 68. Which species have maximum magnetic moment? (1) (CrtH,0),7 2} [Cx(H,0)." (3) [Mn(H,0),) (4) [CoC]? (69. Which of the following is dsp? hybri 7. ah n. Inthe complex ion, ML". M” has five celecton ay isa strong field lig propeties ofthe complexion corresponds to how ne, i. According 10 CFT, the mayen ‘unpaired electrons? wo Qi @)2 a3 The number of unpaired electrons in cA, low yg octahedral complex is wa 2 Ql ao In which of the following octahedral complere of (at, 0,27 wl the magnitude of Ay be the highest? (1) [CACN)P 2) [C1C;0.h) (3) [CotH,0 (4) [CoN Aller the spiting of -rbials in octahedral ey the energy of two ¢, obits will (() Increase by (2) (2) Increase by (3s Which electronic distribution have maximum number unpaired electrons? () Beet 2 @) dae 4) Bet 1. The complex with highest stability constant at 298 Ki (1) [eae @) [CoB @) [cal,)? 4) (CACM? the stability constant (hypothetical values) [predict which isthe strongest ligand ? +4NH, = [Cu(NH,),P*, K =45¢10 PP ACN” = ICU(CN) DK =20210" 4. 2en = [Cu(en),}°*, K =3.0x10" +4H,0 = [Cu(H,0), sao! theory does not explain which of ™ coordination compounds?2. Coordination Compounds | 16.1 A square a is formed by hybridization of (Q) Rhodium (2) Iron ich atomic orbitals? pone @) Aluminium (4) Cobalt 5, Pe Py dye 2) 5. Pes Bye, ee ee 92. The extraction of __ by the formation of cyanid @) Pp Py + Po Pa complex is atypical example of the use of coordinatio trong ligand gives a complex which is generally called ‘compounds in metallurgical processes. (1) High spin (2) Low spin () Ag Q) Au (3) High energy (4) Stable G3) Cu (4) Both (1) and (2) Bt eoncing in Metal Carbonic” 93. Ligands used inthe estimation of hardness of water are i (1) EDTA (2) DMG The correct structural formula of zeise’s sat is () Chloride @ Bromo () KPC TP 2) KUPICL-MCHICT 94, Vitamin By, contains @) KPC, 9-CH] (4) K'[PICh-Cr-GH)) (1) Cobalt | (2) Magnesium Which of the following is a n-complex? (3) Iron (4) Nickel (1) Trimethyl aluminium (2) Ferrocene 95. Chlorophyll contains @) Diethyt zine (4) Nickel carbonyl (2) Magnesium 2) Iron Which ofthe following organometallic compound is ¢- (3) Cobalt (8) Nickel and x-tonded ? 96. Development of a photographie plate involves the type () Fey CH] 2) KIPICL 7 - CH] of 3) [Co(CO)NHJ? A) Fe(CHs)s (1) Anoxidising agent (2) A complexing agent (3) Aneutralising agent (4) A precipitating agent bonding is not involved in 97. Which is used in cancer - chemotherapy? (1) Ferrocene (2) Dibenzene chromium (G) Zeise’s salt (4) Grignard reagent (1) cisplatin (2) Zeise’s salt Inmetal carbonyl having general formula AA CO),, where, (3) Both (1) and(2) (4) None -M= metal, x =4 and the metal is bonded to 98 Coordination compounds have great importance in biological systems, Inthis context, which of he following arbon and Oxygen Oxygen (1) Carbon and Oxygen (2) Oxyes clones as (3) Carbon Gua InFe{CO)., the Fe - (1) recharacter only @) Tonic character pigment in plants and contains [pigment of blood and contains and contains cobalt. salt, central metal . In Zeise’s salt, central ms fan enzyme and contains zine. (1) donor and r-acceptor cabue Cis Peete @) m-donor and o-acceptor (2) Vitamin By» (3) o-donor and r-acceptor Be codes Maser es (4) eedonor and o-acceptor ean be removed by jum dihydrogen salt Importance and Coordination |. Wilkinson's catalyst contains:16.26 Chemistry Topicwise Questions 1 i. 21. GB) a) 4) FC) (4) 4) Q) Q) cy Pb) os 12. 22, 32. 42. 52. 62. 2 82. 92, @) @) Q) Q) Q) Q) a) (4) Q) co) 13. 23. 33. 43. 53. 63. 73. 83, 93. a) a) G) 4) a) G) (4) Q) 2) 0) 94, ae) 14. 24, 34, (2) 54, 64. 14. @) G) 8) a) a) 4) (4) a) ANSWER KEY 5. (1) 6. (I) Q) 16. G3) Q) 26. @) Q) 36. 2) @) 46. G3) Q) 56. (1) 4) 66. 2) () 76. (1) Q) 86. G3) () 96. @) a 17. 21, 37. 47. 1. (2) 1. (2) 1. (4) Q) wo Q) (4) ro) 8. 18, 28. 38. 58. 68. 78. 98. @) () G) Q) @G) (ly) @) (4) G) a) io} 19. 29, 39, 49, 59, 2, 89, 99, G) @) i) @) G) Q) @) @ Q) a)