

InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
51. |
What is the coordination number in [Ni (en)3]Cl2 ? Explain it. |
Answer» In [Ni (en)3]Cl2 , the coordination number of Ni2+ is also 6. The ligand “en” represents ethane -1, 2- diamine (H2N – CH2 – CH2 – NH2) and it contains two donor atoms (Nitrogen). Each ligand forms two coordination bonds with nickel. So, totally there are six coordination bonds between them. |
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52. |
Among the following complexes which one shows zero CFSE? (a) [Mn (H2O)6 ]3+ (b) [Fe (H2O)6 ]3+(c) [CO (H2O)6 ]2+ (d) [CO (H2O)6 ]3+ |
Answer» (b) [Fe (H2O)6 ]3+ |
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53. |
The hybridization involved in the complex [Ni (CN)4 ]2- is …………….. (a) sp3 (b) d2 sp3+ (c) dsp2 (d) sp3d2 |
Answer» The hybridization involved in the complex [Ni (CN)4]2- is dsp2. |
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54. |
Find out the incorrect pair (a) CN- and NO2- (b) CO and NO (c) F- and Br (d) en and (COO-)2 |
Answer» (a) CN and NO2 . Others are weak ligands |
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55. |
Number of possible isomers for the complex [CO (en)2 Cl2 ]Cl will be …………….. (a) 1 (b) 4 (c) 3(d) 2 |
Answer» Number of possible isomers for the complex [CO (en)2 Cl2 ]Cl will be 2. |
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56. |
Assertion (A) – [CO (NH3)6 ] [Cr(CN)6 ] can exist in coordination isomerism. Reason (R) – In a bimetallic complex, the interchange of one or more ligands between the cationic and the anionic coordination entities result in coordination isomerism (a) Both A and R are correct and R is the correct explanation of A. (b) Both A and R are correct but R is not the correct explanation of A. (c) A is correct but R is wrong. (d) A is wrong but R is correct. |
Answer» (a) Both A and R are correct and R is the correct explanation of A. |
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57. |
Fill in the blanks:[Pt (NH3)2Cl2]2+ shows …….. isomerism. |
Answer» Cis-trans isomerism |
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58. |
Consider the following statements ………(i) Mohr’s salt answers the presence of Fe2+ , NH4+ and SO2-4 ions. (ii) Potassium Ferri thio cyanate answers the presence of K+ , Fe3+ , SCN ions(iii) In coordination compound, the complex ion does not loose its identity and never dissociate to give simple ions. Which of the above statements is/are correct?(a) (ii) only (b) (i) and (iii) (c) (ii) and (iii) (d) (iii) only |
Answer» (b) (i) and (iii) |
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59. |
What are primary and secondary valency of cobalt in COCl3 .6NH3 ? (a) 3, 3 (b) 6, 3 (c) 3, 6 (d) 6, 6 |
Answer» 3, 6 are primary and secondary valency of cobalt in COCl3 .6NH3 |
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60. |
How many moles of AgCl are precipitated on the reaction of one mole of COCl3 . 5NH3 with AgNO3 ? (a) 3 (b) 1 (c) 2 (d) 5 |
Answer» 2 moles of AgCl are precipitated on the reaction of one mole of COCl3 . 5NH3 with AgNO3 |
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61. |
The hormone that influences ripening of fruits A) Gibberellins B) Ethylene C) Cytokinins D) Auxin |
Answer» (B) Ethylene |
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62. |
Which plant hormone is responsible for closing of stomata ? A) Abscisic acid B) Auxin C) Cytokinin D) Ethylene |
Answer» (A) Abscisic acid |
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63. |
Identify the incorrect pair. A) Thyroxin – Thyroid B) Adrenalin – Pituitary C) Insulin – PancreasD) Progesterone – Ovary |
Answer» B) Adrenalin – Pituitary |
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64. |
Identify the following terms in the complex [K4Fe (CN)6] (i) Cation (ii) Anion (iii) ligands (iv) central metal ion (v) Oxidation state of metal (vi) IUPAC name |
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65. |
Give the IUPAC names of the following compounds. 1. Na2[Ni(EDTA)] 2. [CO (NH3)5Cl]2+ |
Answer» 1. Na2[Ni(EDTA)] – Sodium 2,2′,2″,2″ – (ethane -1, 2- diyldinitrilo) tetraacetato nickelate (II) 2. [CO (NH3)5Cl]2+ – Pentaamine chloro cobalt (III) ion |
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66. |
Which of the following is an example of anionic complex? (a) [Ag(NH3)2]Cl (b) [CO (NH3)6]Cl3(c) [Fe (CO)5] (d) K4 [Fe(CN)6] |
Answer» (d) K4 [Fe(CN)6] |
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67. |
Give one test to differentiate [CO(NH3)5Cl] SO4 and [CO(NH3)5SO4]Cl. |
Answer» (a) [CO(NH3)5Cl] SO4 → [CO(NH3)5Cl]+2 + SO42- (b) [CO(NH3)5 SO4] Cl → [CO(NH3)5Cl] SO4 1. Aqueous solution of (a) gives sulphate ion. When an addition of BaCL, solution (a) gives white precipitate of BaSO4. But (b) does not give any precipitate. 2. Aqueous solution of (b) gives chloride ion. When an addition of AgNO3 solution (b) gives curdy white precipitate of AgCl. But (a) does not give any precipitate. |
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68. |
Fill in the blanks:The shape of [Fe(H2O)6]2+ and [COF6]4- is …… |
Answer» The shape of [Fe(H2O)6]2+ and [COF6]4- is Octahedral |
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69. |
Fill in the blanks:The hybridisation take place in [FeF6]4- and [Fe(H2O)6]2+is …… |
Answer» The hybridisation take place in [FeF6]4- and [Fe(H2O)6]2+is SP3d2 |
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70. |
Fill in the blanks:The IUPAC name of [Cr (en)3] [Cr F6] is ...... |
Answer» Tris (ethane -1,2- diamine) chromium (III) hexa fluorido chromate (III) |
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71. |
Fill in the blanks:The coordination number of [Cr (en)3] [Cr F6] and oxidation state of Cr are …… |
Answer» The coordination number of [Cr (en)3] [Cr F6] and oxidation state of Cr are 6, +3. |
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72. |
The IUPAC name of Na2 [Ni (EDTA)] is …………….. (a) Disodium tetra acetato nickalate (II) (b) Sodium 2, 2′, 2″, 2″‘ – (ethane 1,2 – diyldinitrilo) tetra acetato nickelate (II)(c) Ethylene tetra acetato nickalate (II) (d) Sodium tetraacetato nickel (II) |
Answer» (b) Sodium 2, 2’ , 2″, 2′” – (ethane – 1, 2 – diyldinitrilo) tetra acetato nickelate (II) |
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73. |
Which one of the following is a homoleptic complex? (a) [CO(NH3)3](Cl3)](b) [Pt(NH3)2Cl2] (c) [Pt(NO2)(H2O)(NH3)2]Br (d) [Co(NH3)6]Cl3 |
Answer» (d) [Co(NH3)6]Cl3 |
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74. |
Find the Odd one out(a) CN- (b) CI- (c) SO42-(d) NH3 |
Answer» (d) It is a neutral ligand whereas others are negative ligands. |
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75. |
The geometry possible in [Fe F6]4- and [CoF6]4- is …………….. (a) Trigonal bipyramidal (b) Square planar (c) Octahedral (d) Tetrahedral |
Answer» (c) Octahedral |
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76. |
Find the Odd one out(a) [Ti (H2O)6]3+(b) [Fe (CO)5] (c) [FeF6]4+(d) [COF6]4- |
Answer» (b) Fe (CO)I has trigonalbipyramidal shape whereas others have octahedral shape. |
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77. |
Find out the correct pair(a) [Ni(CO)4], [NiCl4]2- (b) [CuCl2], [Fe(CO)5] (c) [FeF6]4- , [Fe(CN)6]2- (d) [Ni(CO)4], [HgI3]- |
Answer» (a) It is tetrahedral whereas others have different shapes. |
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78. |
What is the IUPAC name of [CO(CO3) (NH3)4]Cl? (a) Carbonato tetraammine cobalt (III) chloride (b) Tetraamminecarbanatocobalt(III) chloride (c) Carbonato tetra ammonium cobaltate (HI) . (d) Carbonato tetraammine cobaltate (II) |
Answer» (b) Tetraamminecarbanatocobalt(III) chloride |
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79. |
Which one of the following is the IUPAC name of [Cr(en)3] [CrF6] ……(a) Triethylamine chromium (III) hexa fluriod chromium (III). (b) Tris (ethane -1, 2 – diamine) chromium (III) hexa flurido chromate (III) (c) Hexa fluoro chromium (III) tris (ethane – 1, 2 – diamined) chromium (III) (d) Hexa fluoro chromate (III) triethyl amine chromium (III) |
Answer» (b) Tris (ethane -1, 2 – diamine) chromium (III) hexa flurido chromate (III) |
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80. |
Which one of the following is a heteroleptic complex? (a) [Pt (NO2) (H2O) (NH3)2]Br (b) [Ni(CO)4] (c) [Cb(NH3)6]Cl3(d) K4[Fe(CN)6] |
Answer» (a) [Pt (NO2) (H2O) (NH3)2]Br |
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81. |
Fill in the blanks :The enzyme important in digestion is …… contains …….. coordinated to protein |
Answer» Carboxy peptidase, Zinc ion (Zn2+ |
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82. |
Find the Odd one out (a) NH3 (b) CN (c) H2O (d) PPh3 |
Answer» (b) It is a negative ligand whereas others are neutral ligands |
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83. |
Match the List I and List II using the code given below the lsit. List I List IIA. Octahedral1. [Ni(CO)]4B. Trigonal bipyramidal2. [COF6]3-C. Trigonal Planar3. [Fe(CO)5]D. Trtrahedral4. [HgI3]-ABCD(a)1234(b)2341(c)3412(d)4123 |
Answer» (b) 2, 3, 4, 1 |
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84. |
Give the IUPAC names of the following compounds. 1. [PdI2(ONO)2(H2O)2] 2. [Cr (PPh3)(CO)5] |
Answer» 1. [PdI2(ONO)2(H2O)2] – Diaquadiiododinitrito – kopalladium (iv) 2. [Cr (PPh3)(CO)5] – Pentacarbonyltriphenylphosphanechromium (O) |
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85. |
Find the Odd one out(a) [Ag (CN)2]-(b) [Fe (H2O)6]2+(c) [Fe F6]4-(d) [CO F6]4- |
Answer» (a) [Ag (CN)2] is linear in shape whereas others arc in octahedral shape. |
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86. |
The IUPAC name of [CO(NH3)4Cl2] Cl is ….(a) Tetrammine dichlorido cobalt (III) chloride (b) Dichlorido tetrammine cobalt (III) chloride (c) Tetrammine cobalt (III) trichloride (d) Tetrammine dichlorido cobaltate (III) |
Answer» (a) Tetramminedichloridocobalt (III) chloride |
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87. |
Which one of the following is called as Zeise’s salt? (а) [Pt (NH3)4] [Pt Cl4] (b) K[PtCl3(C2H4)] (c) K4[Fe(CN)6](d) [Fe (CO)5] |
Answer» (b) K[PtCl3(C2H4)] |
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88. |
Fill in the blanks :……….. is used as antitumor drug in cancer treatment. |
Answer» Cis – Platin is used as antitumor drug in cancer treatment. |
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89. |
Match the List I and List II using the code given below the listLIST ILIST IIA . Unpaired electron 01. [MnCl4]2+B . Unpaired electron 12. [CoF6]3-C . Unpaired electron 43. [Fe(CN6)]3D . Unpaired electron 54. [Ni(CN)4]2-Code :ABCD(a)4321(b)3214(c)1432(d)2143 |
Answer» (a) 4, 3, 2, 1 |
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90. |
Which one of the following is not an example of complex salt? (a) Haemoglobin (b) Chlorophyll (c) Cobalamine (d) Ferrous ammonium sulphate |
Answer» (d) Ferrous ammonium sulphate |
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91. |
The complex compound act as oxygen transporter of human is ……(a) Haemoglobin(b) Chlorophyll (c) Cyano cobalamine (d) Wilkinson compound |
Answer» (a) Haemoglobin |
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92. |
Match the List I and List II using the code given below the listLIST I LIST IIA. [(PPh3)3 Rh Cl]1 . Ziegler Natta catalystB. TiCl4 + Al(C2H5)32. Cis - PlatinC. Na3[Ag(S2O3)2]3. Wilkinson's catalystD . [Pt(NH3)2Cl2]4. Sodium dithiosulphato Argentato(I)Code :ABCD(a)2431(b)4213(c)3142(d)1324 |
Answer» (c) 3, 1, 4, 2 |
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93. |
How is spectrochemical series is used to identify the type of ligands? |
Answer» 1. I- < Br- < SCN- < Cl < S2- < F- < OH- ≈ urea < OH2- < H2O < NCS- < EDTA4- < NH3 < en < NO-2 < CN < CO The above series is known as spectrochemical series. 2. The ligands present on the right side of the series such as carbonyl causes relatively larger crystal field splitting and are called strong ligands (or) strong field ligands. 3. The ligands on the left side are called weak field ligands and causes relatively smaller crystal field splitting. |
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94. |
Which of the following is the IUPAC name of [CO(NH3)6]Cl3? (a) Hexamminecobalt (III) chloride (b) Hexammine cobalt (II) chloride (c) Hexamminechloro cobaltate(III) (d) Trichlorohexammine cobalt (III) |
Answer» (a) Hexamminecobalt (III) chloride |
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95. |
Find the Odd one out (a) [CO (NH3)6]3+ (b) [Fe (H2O)6]2+ (c) [CO (NH3)3Cl3] (d) [Fe (CN)6]3+ |
Answer» (c) It is heteroleptic complex whereas others are homoleptic complex. |
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96. |
Write the IUPAC names of the following complexes. 1. [CO (NH3)5 CN] [CO(NH3)(CN)5] 2. [Pt (Py)4] [Pt Cl4]3. [CO (NH3)4Cl2]3 [Cr(CN)6] |
Answer» 1. [CO (NH3)5 CN] [CO(NH3)(CN)5] Penta ammine cyanido – K C Cobalt (III) ammine penta cyanido – K C Cobaltate (III) 2. [Pt (Py)4] [Pt Cl4] Tetra pyridine platinum (II) tetrachlorido platinate (II) 3. [CO (NH3)4Cl2]3 [Cr(CN)6] Tetraammine dichlorido cobalt (III) hexacyanido KC chromate (III) |
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97. |
[Pt (NH3)4] [Pt Cl4] is called as ……(a) Zeigler Natta Catalyst (b) Zeises’ salt (c) Magnus’s green salt (d) Mohr’s salt |
Answer» (c) Magnus’s green salt |
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98. |
Give the structure for the following compounds.1. diamminesilver (I) dicyanidoargentate(I)2. Pentaammine nitrito-KNcobalt (III) ion 3. hexafluorido cobaltate (III) ion 4. dichloridobis(ethylenediamine) Cobalt (III) sulphate 5. Tetracarbonylnickel (0) |
Answer» 1. diamminesilver(I) dicyanidoargentate(I) – [Ag(NH3)9] [Ag(CN)2] 2. Pentaammine nitrito - KNcobalt (III) ion – [CO(NH3)5 NO2]+ 3. hexafluorido cobaltate (III) ion – [COF6]3- 4. dichloridobis(ethylenediamine) Cobalt (III) sulphate – [CO(en)2Cl2]SO4 5. Tetracarbonylnickel (0) – [Ni (CO)4] |
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99. |
Identify the lewis acid in K4[Fe(CN)6]? (a) Fe3+(b) Fe2+(c) K+(d) CN- |
Answer» The lewis acid in K4 [Fe(CN)6] is Fe2+ |
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100. |
Which one of the complex salt is acting as a photo sensitiser in photosynthesis process? (a) Wilkinson’s compound(b) Cobalamine (c) Chlorophyll (d) Haemoglobin |
Answer» (c) Chlorophyll |
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