Free NEET Chemistry multiple-choice questions on Nomenclature & Ligands. Attempt each question and reveal the answer with a full explanation.
What is the correct IUPAC name of the complex [Co(NH 3) 5(CO 3)]Cl ? Pentaamminecarbonatocobalt(III) chloride Pentaamminecarbonatocobalt(II) chloride Pentaamminecarbonatocobaltate(III) chloride Tetraamminecarbonatocobalt(III) chloride What is the IUPAC name of the complex K 4[Fe(CN) 6] ? Potassium hexacyanoferrate(II) Potassium hexacyanoferrate(III) Potassium hexacyanoiron(II) Potassium hexacyanoferrate(IV) Which of the following ligands acts as a flexidentate ligand? SO 4 2- en CN - NH 3 The red precipitate formed in the test for Ni 2+ ions with dimethylglyoxime (DMG) is stabilized by: Hydrogen bonding Ionic bonding - stacking Van der Waals forces Prussian blue is formed when FeCl 3 reacts with K 4[Fe(CN) 6] . Its formula is: Fe 4[Fe(CN) 6] 3 Fe 3[Fe(CN) 6] 4 Fe[Fe(CN) 6] KFe[Fe(CN) 6] The IUPAC name of the complex [Fe(H 2O) 4(C 2O 4)]Cl is: Tetraaquaoxalatoiron(III) chloride Tetraaquaoxalatoferrate(III) chloride Tetraaquaoxalatoiron(II) chloride Tetraaqueousoxalatoiron(III) chloride The magnetic moment of [MnCl 4] 2- is 5.92 BM. This suggests that the hybridization of Mn is: sp 3 dsp 2 d 2sp 3 sp 3d 2 What is the correct IUPAC name for the complex [Co(NH 3) 4(H 2O)Cl]Cl 2 ? Tetraammineaquachloridocobalt(III) chloride Tetraammineaquachlorocobalt(II) chloride Tetraamminechloroaquacobalt(III) chloride Aquatetraamminechlorocobalt(III) chloride The number of bridging CO ligands in the solid state of Co 2(CO) 8 is: 2 0 4 1 In which of the following complexes, the central metal atom/ion does NOT obey the EAN (Effective Atomic Number) rule? [V(CO) 6] [Cr(CO) 6] [Fe(CN) 6] 4- [Ni(CO) 4] The intensive purple color of the permanganate ion [MnO 4] - is due to: Ligand-to-metal charge transfer (LMCT) d-d transition Metal-to-ligand charge transfer (MLCT) p-p transition How many moles of AgCl are precipitated when excess AgNO 3 is added to 100 mL of 0.01 M solution of [Cr(H 2O) 5Cl]Cl 2 ? 0.002 0.001 0.003 0.01 The coordination number of Silver in Tollen's reagent complex [Ag(NH 3) 2] + is: 2 1 4 6 The IUPAC name of the complex Na 2[Fe(CN) 5NO] is: Sodium pentacyanonitrosylferrate(II) Sodium pentacyanonitrosylferrate(III) Sodium nitroprusside Sodium pentacyanonitrosyliron(II) The π -bonded organometallic compound among the following is: Zeise's salt Trimethylaluminium Tetraethyllead Diethylzinc Which of the following is the most likely structure of CrCl 3 6H 2O if 1/3 of total chlorine is precipitated by AgNO 3 ? [Cr(H 2O) 5Cl]Cl 2 H 2O [Cr(H 2O) 6]Cl 3 [Cr(H 2O) 4Cl 2]Cl 2H 2O [Cr(H 2O) 3Cl 3] 3H 2O Which of the following ligands is a macrocyclic ligand known to stabilize complexes like chlorophyll or haemoglobin? Porphyrin EDTA Ethylenediamine Oxalate In which of the following pairs, both complexes are inner orbital complexes? [Co(NH 3) 6] 3+ , [Fe(CN) 6] 4- [CoF 6] 3- , [Fe(CN) 6] 3- [Ni(NH 3) 6] 2+ , [Cr(H 2O) 6] 3+ [MnCl 6] 3- , [Fe(H 2O) 6] 3+ According to the Irving-Williams series, which of the following divalent metal ions forms the most stable complex with a particular ligand? Cu 2+ Mn 2+ Fe 2+ Ni 2+ Which of the following statement is CORRECT for the complex [Co(NH 3) 6]Cl 3 based on Valence Bond Theory? It is diamagnetic and d 2sp 3 hybridized. It is paramagnetic and sp 3d 2 hybridized. It is diamagnetic and sp 3d 2 hybridized. It is paramagnetic and d 2sp 3 hybridized. The overall stability constant ( 4 ) of a complex [ML 4] is 2.1 10 13 . What is the overall dissociation constant ( K d )? 4.76 10 -14 2.1 10 -13 1.0 10 -13 4.76 10 13 The correct IUPAC name for Zeise's salt, K[PtCl 3(C 2H 4)] , is: Potassium trichlorido(ethylene)platinate(II) Potassium trichloroetheneplatinum(II) Potassium trichlorido(ethene)platinum(IV) Potassium ethylenetrichloridoplatinum(II) What is the Effective Atomic Number (EAN) of Platinum in [PtCl 6] 2- ? (Atomic number of Pt = 78 ) 86 84 78 82 How many ions are produced from [Co(NH 3) 5Cl]Cl 2 in solution? 3 2 4 5 Which of the following is an example of a 'macrocyclic' ligand? Porphyrin EDTA Ethylenediamine Oxalate What is the coordination number of Fe in haemoglobin? 6 4 5 2 How many moles of AgCl will be precipitated when an excess of AgNO 3 is added to 1 liter of a 0.1 M solution of [Pt(NH 3) 4Cl 2]Cl 2 ? 0.2 mol 0.1 mol 0.4 mol 0.3 mol Which of the following is the oxidation state of Iron in Sodium nitroprusside? +2 +3 +1 0 In the complex [Co(NH 3) 6] 3+ , the central metal ion uses which orbitals for hybridization? Two 3d, one 4s, three 4p One 4s, three 4p, two 4d Three 3d, one 4s, two 4p Two 4d, one 4s, three 4p If the overall stability constant 4 for the complex [Cu(NH 3) 4] 2+ is 2.1 10 13 , the overall dissociation constant ( K d ) is approximately: 4.7 10 -14 2.1 10 -13 4.7 10 13 1.2 10 -14 The Effective Atomic Number (EAN) of Tungsten ( W , Z=74 ) in W(CO) 6 is: 86 84 74 80 The magnetic moment of the complex [Fe(H 2O) 5(NO)] 2+ (Brown ring complex) corresponds to how many unpaired electrons? 3 1 5 4 What is the correct IUPAC name for H 2[PtCl 6] ? Hexachloroplatinic(IV) acid Hydrogen hexachloroplatinate(IV) Dihydrogen hexachloroplatinum(IV) Hexachloroplatinic(II) acid What is the oxidation state of Iron in the Prussian blue complex Fe 4[Fe(CN) 6] 3 ? +3 and +2 +2 and +2 +3 and +3 +2 and +3 What is the IUPAC name of the complex [K 2[Zn(OH) 4]] ? Potassium tetrahydroxidozincate(II) Potassium tetrahydroxyzinc(II) Dipotassium tetrahydroxidozinc(II) Potassium tetrahydroxidozincate(IV) Which of the following is the correct order of the stepwise stability constants for the formation of [ML 4] ? K 1 > K 2 > K 3 > K 4 K 4 > K 3 > K 2 > K 1 K 1 = K 2 = K 3 = K 4 K 1 < K 2 < K 3 < K 4 What is the correct IUPAC name of the complex [Co(NH 3) 4(NO 2)Cl]Cl ? Tetraamminechloridonitrito-N-cobalt(III) chloride Tetraamminechloronitrocobalt(II) chloride Chloridonitritotetraamminecobaltate(III) chloride Tetraamminechloronitritocobalt(III) chlorite In which of the following complexes is the metal ion d 0 ? [MnO 4] - [Cr(NH 3) 6] 3+ [Fe(CN) 6] 4- [Cu(NH 3) 4] 2+ Which of the following is an example of an organometallic compound with a σ-bond between metal and carbon? Grignard reagent Ferrocene Zeise's salt Nickel tetracarbonyl What is the Effective Atomic Number (EAN) of Cobalt ( Z=27 ) in the complex [Co(en) 3] 3+ ? 36 33 35 34 Which of the following ligands can act as a flexidentate ligand, showing variable denticity? SO 4 2- NH 3 CN - en In the complex [Ni(DMG) 2] , the coordination number and geometry of Ni are: 4 , square planar 4 , tetrahedral 6 , octahedral 2 , linear A solution of CoCl 3 6NH 3 gives a precipitate of 3 moles of AgCl with excess AgNO 3 . The secondary valency of Co in this complex is: 6 3 9 0 The correct IUPAC name for [Co(NH 3) 5(ONO)]Cl 2 is: Pentaamminenitritocobalt(III) chloride Pentaamminenitrocobalt(III) chloride Pentaamminenitrocobalt(II) chloride Pentaamminenitritocobalt(II) chloride An excess of AgNO3 is added to 100 mL of a 0.01 M solution of dichlorotetraaquachromium(III) chloride. The number of moles of AgCl precipitated would be 0.001 0.002 0.003 0.01 Which of the following is an example of an ambidentate ligand? NO 2 - H 2O NH 3 C 2O 4 2- Urea reacts with water to form A which will decompose to form B. B when passed through Cu 2+ (aq), deep blue colour solution C is formed. What is the formula of C from the following ? [ Cu(NH3)4 ] 2+ Cu(OH)2 CuCO3.Cu(OH)2 CuSO4 The IUPAC name of the complex- [Ag(H2O)2][Ag(CN)2] is: diaquasilver(II) dicyanidoargentate(II) dicyanidosilver(I) diaquaargentate(I) diaquasilver(I) dicyanidoargentate(I) dicyanidosilver(II) diaquaargentate(II) The oxidation state of Iron in the brown ring complex [Fe(H 2O) 5(NO)]SO 4 is: +1 +2 +3 0 The complex ion [Cu(CN) 4] 3- has the following geometry: Tetrahedral Square planar Octahedral Trigonal planar What is the correct IUPAC name of the complex [Pt(NH 3) 4Cl 2][PtCl 4] ? Tetraamminedichloridoplatinum(IV) tetrachloridoplatinate(II) Tetraamminedichloridoplatinum(II) tetrachloridoplatinate(IV) Dichloridotetraamminoplatinum(IV) tetrachloridoplatinum(II) Tetraamminedichloridoplatinum(IV) tetrachloridoplatinum(II) In which of the following metal carbonyls is the C-O bond length expected to be the longest? [Fe(CO) 4] 2- [Mn(CO) 6] + [Cr(CO) 6] [Ni(CO) 4] Which of the following d-block ions will form the most stable complex with a given set of ligands according to Irving-Williams order? Cu 2+ Ni 2+ Co 2+ Fe 2+ Which of the following has the longest C-O bond length? [Fe(CO) 4] 2- [Co(CO) 4] - [Ni(CO) 4] [Mn(CO) 6] + What is the correct IUPAC name of the bridging complex [(NH 3) 5Co-NH 2-Co(NH 3) 5]Cl 5 ? -amidobis(pentaamminecobalt(III)) chloride -aminodecaamminecobalt(III) chloride Pentaamminecobalt(III)- -amidopentaamminecobalt(III) chloride Bis(pentaamminecobalt) amido chloride In which of the following carbonyls is the C-O bond length expected to be the longest? [V(CO) 6] - [Mn(CO) 6] + Cr(CO) 6 [Fe(CO) 6] 2+ Which type of isomerism is shown by the pair [Co(NH 3) 5SO 4]Br and [Co(NH 3) 5Br]SO 4 ? Ionization isomerism Linkage isomerism Coordination isomerism Hydrate isomerism The unit of the overall stability constant ( 4 ) for the formation of [ML 4] from M and L in aqueous solution is: L 4 mol -4 mol L -1 L mol -1 mol 4 L -4 What is the correct IUPAC name of the bridged complex [(en) 2Co(OH) 2Co(en) 2]Cl 4 ? Di- -hydroxidotetrakis(ethylenediamine)dicobalt(III) chloride Dihydroxidobis(ethylenediamine)cobalt(III) chloride Tetrakis(ethylenediamine)dihydroxidodicobalt(II) chloride Bis(ethylenediamine)cobalt(III)-di- -hydroxido-bis(ethylenediamine)cobalt(III) chloride The formula of tetraammineaquachloridocobalt(III) chloride is [Co(NH3)4Cl2].H2O [Co(NH3)4]Cl3.H2O [Co(NH3)4(H2O)Cl]Cl [Co(NH3)4(H2O)Cl]Cl2 A 1 : 3 electrolyte in an aqueous solution is [CoCl2(NH3)4]Cl [CoCl(NH3)5]Cl2 [Co(NH3)6]Cl3 [Co(NH3)3(NO2)3] The donor atoms in EDTA 4- are: Two Nitrogen and four Oxygen atoms Four Nitrogen and two Oxygen atoms Six Oxygen atoms Three Nitrogen and three Oxygen atoms Which of the following is used as an antidote for lead poisoning? Ca-EDTA complex Cis-platin Nickel-DMG complex Chlorophyll The coordination number of Nickel in [Ni(C 2O 4) 3] 4- is: 6 3 4 2 Which of the following is a neutral complex? [Ni(CO) 4] [Fe(CN) 6] 4- [Co(NH 3) 6]Cl 3 [Pt(NH 3) 4] 2+ An example of a double salt is: Mohr's salt Potassium ferricyanide Chlorophyll Haemoglobin The stability of coordination compounds is usually expressed in terms of: Formation constant ( K ) Lattice energy Electronegativity Ionization enthalpy The coordination number of the central metal atom in a complex is determined by: The number of sigma bonds formed by ligands with the metal The oxidation state of the metal The number of pi bonds formed by ligands with the metal The total number of ligands surrounding the metal How many moles of AgCl will be precipitated when an excess of AgNO 3 is added to one mole of [Cr(H 2O) 4Cl 2]Cl ? 1 2 3 0 According to IUPAC nomenclature, the ligand NH 2CH 2CH 2NH 2 is named as: Ethane-1,2-diamine Ethylenediamine Ethane-1,2-dinitrogen Diaminoethane Which of the following is an example of a homoleptic complex? [Fe(CN) 6] 4- [Co(NH 3) 4Cl 2] + [Pt(NH 3) 2Cl 2] [Ni(en) 2Cl 2] Which of the following is the most stable complex ion? [Fe(C 2O 4) 3] 3- [Fe(H 2O) 6] 3+ [Fe(NH 3) 6] 3+ [FeCl 6] 3- The number of ions produced by the complex [Co(NH 3) 6]Cl 3 in an aqueous solution is: 4 3 2 6 The coordination number of Co in [Co(en) 2Cl 2] + is: 6 4 2 5 What is the oxidation state of Fe in [Fe(CO) 5] ? 0 +2 +3 +5 The number of donor atoms in a diethylenetriamine (dien) ligand is: 3 2 4 1 The IUPAC name of K 2[PtCl 6] is: Potassium hexachloridoplatinate(IV) Potassium hexachloridoplatinum(IV) Dipotassium hexachloroplatinum(IV) Potassium hexachloridoplatinate(II) The IUPAC name of [Co(NH 3) 5Cl]Cl 2 is: Pentaamminechloridocobalt(III) chloride Pentaamminechlorocobalt(III) chloride Chloridopentaamminecobalt(III) chloride Pentaamminechloridocobalt(II) chloride The coordination number of the central metal in [Mo(CN) 8] 4- is: 8 4 6 2 The relation between stepwise stability constants ( K 1, K 2... ) and overall stability constant ( n ) is: n = K 1 K 2 ... K n n = K 1 + K 2 + ... + K n log n = log K 1 log K 2 n = (K 1 K 2) / K n Metal present in Vitamin B12 is: Cobalt Magnesium Iron Zinc The pair of compounds [Co(NH 3) 4Cl 2]NO 2 and [Co(NH 3) 4Cl(NO 2)]Cl are: Ionization isomers Linkage isomers Coordination isomers Hydrate isomers Which of the following is the most stable complex? [Fe(C 2O 4) 3] 3- [Fe(H 2O) 6] 3+ [Fe(NH 3) 6] 3+ [FeCl 6] 3- How many EDTA molecules are required to satisfy the coordination number of 6 for Ca 2+ ? 1 6 3 2 The coordination number of Pt in [Pt(en) 2]Cl 2 is: 4 2 6 8 Which of the following complexes is most stable due to the chelate effect? [Fe(C 2O 4) 3] 3- [Fe(H 2O) 6] 3+ [Fe(NH 3) 6] 3+ [Fe(Cl) 6] 3- Which type of isomerism is shown by the complex [Co(NH 3) 5(SCN)] 2+ and [Co(NH 3) 5(NCS)] 2+ ? Linkage isomerism Coordination isomerism Ionization isomerism Solvate isomerism The oxidation state of nickel in the metal carbonyl [Ni(CO) 4] is: 0 +2 +4 -2 Which of the following ligands is a polydentate ligand known as 'trien'? Triethylenetetramine Triethylamine Trimethylenediamine Triethylenediamine In the complex [Fe(CN) 6] 3- , the iron atom has which of the following hybridization? d 2sp 3 sp 3d 2 dsp 2 sp 3 The coordination number and oxidation state of Cr in K 3[Cr(ox) 3] are respectively: 6 and +3 3 and +3 6 and +6 3 and +6 Which of the following complexes will exhibit the maximum molar conductivity in an aqueous solution? [Co(NH 3) 6]Cl 3 [Co(NH 3) 5Cl]Cl 2 [Co(NH 3) 4Cl 2]Cl [Co(NH 3) 3Cl 3] The primary and secondary valencies of Chromium in the complex [Cr(NH 3) 4Cl 2]Cl are respectively: 3 and 6 2 and 4 1 and 6 3 and 4 What is the correct IUPAC name of the complex K 3[Al(C 2O 4) 3] ? Potassium trioxalatoaluminate(III) Potassium trioxalatoaluminium(III) Tripotassium trioxalatoaluminate(II) Potassium trioxalatealuminium(III) The type of isomerism exhibited by the pair [Cr(H 2O) 6]Cl 3 (violet) and [Cr(H 2O) 5Cl]Cl 2 H 2O (grey-green) is: Hydrate isomerism Ionization isomerism Linkage isomerism Coordination isomerism Which of the following is a bidentate ligand? Oxalate ion Ammine Ethylenediaminetetraacetate ion Cyanide ion Which of the following complexes follows the EAN (Effective Atomic Number) rule exactly ( EAN = 36 )? [Fe(CO) 5] [Cr(NH 3) 6] 3+ [Fe(CN) 6] 3- [NiCl 4] 2- What is the geometry of the complex [Ag(NH 3) 2] + ? Linear Square planar Tetrahedral Octahedral What is the IUPAC name for the coordination compound [Fe(H 2O) 6]Cl 2 ? Hexaaquairon(II) chloride Hexaaquairon(III) chloride Hexaaquaferrate(II) chloride Iron(II) hexaaquachloride The ligand EDTA 4- is a: Hexadentate ligand Bidentate ligand Tetradentate ligand Tridentate ligand What is the IUPAC name of the complex [Co(NH 3) 4(H 2O)Cl]Br 2 ? Tetraammineaquachloridocobalt(III) bromide Tetraammineaquachlorocobalt(II) bromide Aquatetraamminechlorocobalt(III) bromide Tetraammineaquachloridecobalt(III) dibromide Among the following, which complex is used to estimate the hardness of water? [Ca(EDTA)] 2- [Mg(NH 3) 6] 2+ [Ca(C 2O 4) 2] 2- [Na 2(EDTA)] What is the coordination number of Fe in [Fe(EDTA)] - ? 6 4 5 2 The metal ion present in the enzyme 'Nitrogenase', which is responsible for biological nitrogen fixation, is: Mo and Fe Cu and Zn Mg and Mn Co and Ni The glycinato ligand ( NH 2CH 2COO - ) is a: Bidentate ligand with N and O as donor atoms Monodentate ligand with N as donor atom Bidentate ligand with two O as donor atoms Bidentate ligand with two N as donor atoms In Tollen's reagent, the silver ion is present in the form of which complex? [Ag(NH 3) 2] + [Ag(NH 3) 2]Cl [Ag(CN) 2] - [Ag(H 2O) 2] + What is the IUPAC name for [Cr(en) 3]Cl 3 ? Tris(ethylenediamine)chromium(III) chloride Triethylenediaminechromium(III) chloride Tris(ethylenediamine)chromium(II) chloride Tris(ethane-1,2-diamine)chromium(III) chloride Which of the following types of isomerism is exhibited by the pair [Co(NH 3) 5(NO 2)]Cl 2 and [Co(NH 3) 5(ONO)]Cl 2 ? Linkage isomerism Ionization isomerism Coordination isomerism Hydrate isomerism What type of isomerism is shown by [Co(NH 3) 4Br 2]Cl and [Co(NH 3) 4BrCl]Br ? Ionization isomerism Linkage isomerism Coordination isomerism Geometrical isomerism The denticity of the oxalate ion ( C 2O 4 2- ) in K 3[Fe(C 2O 4) 3] is: 2 1 3 4 Which of the following metal ions is essential for the activity of the enzyme Carbonic Anhydrase? Zn 2+ Mg 2+ Fe 2+ Cu 2+ The reaction of Fe 3+ with SCN - ions produces a blood-red colored complex. The formula of this complex is: [Fe(H 2O) 5(SCN)] 2+ [Fe(SCN) 6] 4- [Fe(CN) 6] 3- Fe(SCN) 2 The ligand acetylacetonate ( acac ) is a: Bidentate ligand Unidentate ligand Tridentate ligand Hexadentate ligand How many chelate rings are formed in the complex [Ca(EDTA)] 2- ? 5 6 4 3 According to Werner's theory, how many moles of AgCl will be precipitated from 1 mole of CoCl 3 5NH 3 if it is treated with excess AgNO 3 ? 2 3 1 0 The coordination number of Th in K 4[Th(C 2O 4) 4] is: 8 4 6 10 According to Werner's theory, the secondary valency of a metal atom in a coordination compound corresponds to: Coordination number Oxidation state Ionic charge Total number of electrons A complex with the molecular formula CrCl 3 6H 2O is found to have a molar conductivity corresponding to a 1:3 electrolyte. The structure of the complex is: [Cr(H 2O) 6]Cl 3 [Cr(H 2O) 5Cl]Cl 2 H 2O [Cr(H 2O) 4Cl 2]Cl 2H 2O [Cr(H 2O) 3Cl 3] 3H 2O The IUPAC name of [Ni(CO) 4] is: Tetracarbonylnickel(0) Tetracarbonylnickelate(0) Tetracarbonylnickel(II) Tetracarbonylnickelate(II) The number of donor atoms in the ligand 'trien' (triethylenetetramine) is: 4 3 2 6 The net charge on the complex ion containing Co 3+ , four NH 3 molecules, and two Cl - ions is: +1 +2 +3 -1 The complex [Co(NH 3) 5(NO 2)]Cl 2 and [Co(NH 3) 5(ONO)]Cl 2 are examples of: Linkage isomerism Ionization isomerism Coordination isomerism Geometrical isomerism The EAN (Effective Atomic Number) of Cr ( Z=24 ) in [Cr(CO) 6] is: 36 34 35 33 The total number of ions produced by the complex K 3[Fe(CN) 6] in an aqueous solution is: 4 2 3 5 A ligand which can bond through two different atoms but only one at a time is called: Ambidentate ligand Chelating ligand Bidentate ligand Flexidentate ligand Copper sulphate dissolved in excess of KCN to give:- CuCN [ Cu(CN)4 ] 3- [ Cu(CN)4 ] 2- Cu(CN) 2 Ethylene diaminetetraacetate (EDTA) ion is : Unidentate ligand Bidentate ligand with two "N" donor atoms Tridentate ligand with three "N" donor atoms Hexadentate ligand with four "O" and two "N" donor atoms Homoleptic complex from the following complexes is Potassium trioxalatoaluminate (III) Diamminechloridonitrito-N-platinum (II) Pentaamminecarbonatocobalt (III) chloride Triamminetriaquachromium (III) chloride Which complex compound is most stable? [Co(NH3)4(H2O)Br](NO3)2 [Co(NH3)3(NO3)3] [CoCl2(en)2]NO3 [Co(NH3)6]2(SO4)3 Given below are two statements : Statement I : [Co(NH3)6] 3+ is a homoleptic complex whereas [Co(NH3)4Cl2] + is a heteroleptic complex. Statement II : Complex [Co(NH3)6] 3+ has only one kind of ligands but [Co(NH3)4Cl2] + has more than one kind of ligands. In the light of the above statements, choose the correct answer from the options given below. Both Statement I and Statement II are true Both Statement I and Statement II are false Statement I is true but Statement II is false Statement I is false but Statement II is true Out of the following complex compounds, which of the compound will be having the minimum conductance in solution? [Co(NH3)5Cl]Cl [Co(NH3)3Cl3] [Co(NH3)4Cl2] [Co(NH3)6]Cl3 Which of the following is a common chelating agent used in analytical chemistry to form stable complexes with metal ions? Oxalate ion Chloride ion Ammonia Cyanide ion Match List-I with List-II. array llll ; & List-I & ; & List-II A. & Haber process & I. & Fe catalyst B. & Wacker oxidation & II. & PdCl 2 C. & Wilkinson catalyst & III. & [(PPh 3 ) 3 RhCl] D & Ziegler catalyst & IV. & TiCl 4 with Al(CH 3 ) 3 array Choose the correct answer from the options given below : A-I, B-IV, C-III, D-II A-I, B-II, C-IV, D-III A-II, B-III, C-I, D-IV A-I, B-II, C-III, D-IV Which one of the following is an ambidentate ligand? Oxalate Ethane-1,2-diamine Thiocyanate Ethylenediaminetetraacetate ion Which of the following is an outer orbital complex and exhibits paramagnetic behavior? [MnCl 6] 3- [Co(NH 3) 6] 3+ [Fe(CN) 6] 4- [Ni(CN) 4] 2- What is the coordination number and oxidation state of Cr in K 3[Cr(C 2O 4) 3] ? 6, +3 3, +3 6, +6 3, +6 Which of the following will give a white precipitate with AgNO 3 solution? [Co(NH 3) 5Cl]Cl 2 [Co(NH 3) 4Cl 2]Cl [Co(NH 3) 3Cl 3] Both A and B The correct order of the stoichiometries of AgCl formed when AgNO 3 in excess is treated with the complexes: CoCl 3.6NH 3 , CoCl 3.5NH 3 , CoCl 3.4NH 3 respectively is: 3AgCl, 2AgCl, 1AgCl 2AgCl, 3AgCl, 1AgCl 1AgCl, 2AgCl, 3AgCl 3AgCl, 1AgCl, 2AgCl The IUPAC name of [Pt(NH 3) 2Cl(NH 2CH 3)]Cl is: Diamminechlorido(methylamine)platinum(II) chloride Diamminechlorido(aminomethane)platinum(II) chloride Diamminechloro(methylamine)platinum(II) chloride Bisamminechloro(methylamine)platinum(IV) chloride The Effective Atomic Number (EAN) of Iron in [Fe(CN) 6] 4- is: 36 34 35 38 The IUPAC name of the complex [Ag(NH 3) 2][Ag(CN) 2] is: Diamminesilver(I) dicyanidoargentate(I) Diamminesilver(II) dicyanidoargentate(II) Dicyanidosilver(I) diamminesilver(I) Diamminesilver(I) dicyanidosilver(I) What is the primary valency and secondary valency of Co in [Co(NH 3) 5Cl]Cl 2 ? 3 and 6 2 and 5 3 and 5 6 and 3 Which of the following ligands forms a chelate with a metal ion? EDTA 4- SCN - Cl - CN - Which of the following is NOT a property of Werner’s primary valency? Directional in space Satisfied by negative ions Ionizable Corresponds to oxidation state The IUPAC name of the linkage isomer of [Co(NH 3) 5(NO 2)]Cl 2 is: Pentaamminenitritocobalt(III) chloride Pentaamminenitrocobalt(III) chloride Pentaamminenitrosocobalt(III) chloride Pentaamminenitritocobalt(II) chloride Wilkinson’s catalyst, used in the hydrogenation of alkenes, is: [Rh(PPh 3) 3Cl] [Pt(NH 3) 2Cl 2] [Ni(DMG) 2] [Fe(CO) 5] Which of the following complexes is most stable? [Fe(C 2O 4) 3] 3- [Fe(H 2O) 6] 3+ [Fe(NH 3) 6] 3+ [FeCl 6] 3- The IUPAC name of the complex [Cr(H 2O) 4Cl 2]Cl is: Tetraaquadichloridochromium(III) chloride Dichloridotetraaquachromium(III) chloride Tetraaquachromium(III) trichloride Tetraaquachloridochromate(III) chloride A coordination compound with formula CoCl 3 ∙ 4NH 3 precipitates 1 mole of AgCl with excess AgNO 3 . Its structural formula is: [Co(NH 3) 4Cl 2]Cl [Co(NH 3) 4Cl]Cl 2 [Co(NH 3) 4]Cl 3 [Co(NH 3) 3Cl 3]NH 3 The value of 'effective atomic number' (EAN) for Cr in [Cr(NH 3) 6]Cl 3 is (Atomic number of Cr = 24 ): 33 36 30 35 Which of the following is NOT an ambidentate ligand? C 2O 4 2- SCN - NO 2 - CN - In CuSO 4 5H 2O , how many water molecules are directly coordinated to the Copper ion? 4 5 1 2 The correct IUPAC name for Sodium nitroprusside is: Sodium pentacyanonitrosylferrate(II) Sodium pentacyanonitrosylferrate(III) Sodium nitrocyanideferrate(II) Sodium pentacyanonitrosyliron(II)