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Coordination Compounds

98 questions · Chemistry · NEET
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Coordination Compounds

98 questions · Chemistry · NEET

  1. Which of the following are paramagnetic? A. [NiCl4​]2− B. Ni(CO)4​ C. [Ni(CN)4​]2− D. [Ni(H2​O)6​]2+ E. Ni(PPh3​)4​…2025 · Q117 · MCQ
  2. The correct order of the wavelength of light absorbed by the following complexes is, A. [Co(NH3​)6​]3+ B. [Co(CN)6​]3− C. [Cu(H2​O)4​]2+…2025 · Q125 · MCQ
  3. Out of the following complex compounds, which of the compound will be having the minimum conductance solution?2025 · Q96 · Multiple correct
  4. Match List I with List II. Choose the correct answer from the options given below: Includes table2024 · Q115 · MCQ
  5. Given below are two statements : Statement I: Both [Co(NH3​)6​]3+ and [CoF6​]3− complexes are octahedral but differ in their magnetic behaviour. Statement II: [Co(NH3​)6​]3+…2024 · Q132 · MCQ
  6. Given below are two statements : Statement I : [Co(NH3​)6​]3+ is a homoleptic complex whereas [Co(NH3​)4​Cl2​]+ is a heteroleptic complex. Statement II : Complex [Co(NH3​)6​]3+…2024 · Q137 · MCQ
  7. Ethylene diaminetetraacetate ion is a/an:2024 · Q119 · MCQ
  8. Which of the following is not an ambidentate ligand?2024 · Q125 · MCQ
  9. [Mn2​(CO)10​] and [Co2​(CO)8​] structures have A. Metal-Metal linkage B. Terminal CO groups C. Bridging CO groups D. Metal in zero oxidation state Choose the correct…2024 · Q149 · MCQ
  10. Select the element (M) whose trihalides cannot be hydrolysed to produce an ion of the form [M(H2​O6​]3+2023 · Q108 · MCQ
  11. Which of the following forms a set of complex and a double salt, respectively?2023 · Q111 · MCQ
  12. Type of isomerism exhibited by compounds [Cr(H2​O)6​Cl3​,[Cr(H2​O)5​Cl2​Cl2​⋅H2​O,[Cr(H2​O)4​Cl2​]Cl.2H2​O…2023 · Q115 · MCQ
  13. Homoleptic complex from the following complexes is :2023 · Q112 · MCQ
  14. Which complex compound is most stable?2023 · Q121 · MCQ
  15. Match List-I with List-II : Choose the correct answer from the options given below : Includes table2022 · Q107 · MCQ
  16. Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : The metal carbon bond in metal carbonyls possesses both σ and π character. Reason (R) : The ligand to…2022 · Q124 · MCQ
  17. The order of energy absorbed which is responsible for the color of complexes (A) [Ni(H2O)2(en)2]2+ (B) [Ni(H2O)4(en)]2+ and (C) [Ni(en)3]2+ is2022 · Q122 · MCQ
  18. The IUPAC name of the complex - [Ag(H2O)2][Ag(CN)2] is:2022 · Q95 · MCQ
  19. Ethylene diaminetetraacetate (EDTA) ion is :2021 · Q104 · MCQ
  20. Match List-I with List-II : Choose the correct answer from the options given below. Includes table2021 · Q125 · MCQ
  21. The calculated spin only magnetic moment of Cr2+ ion is?2020 · Q84 · MCQ
  22. Urea reacts with water to form A which will decompose to form B. B when passed through Cu2+ (aq), deep blue colour solution C is formed. What is the formula of C from the following?2020 · Q88 · MCQ
  23. Which of the following is the correct order of increasing field strength of ligands to form coordination compounds?2020 · Q94 · MCQ
  24. What is the correct electronic configuration of the central atom in K4[Fe(CN)6] based on crystal field theory?2019 · Q91 · MCQ
  25. The type of isomerism shown by the complex [CoCl2(en)2] is2018 · Q87 · MCQ
  26. The geometry and magnetic behaviour of the complex [Ni(CO)4] are2018 · Q88 · MCQ
  27. Iron carbonyl, Fe(CO)5 is2018 · Q89 · MCQ
  28. The correct order of the stoichiometries of AgCl formed when AgNO3 in excess is treated with the complexes : CoCl3.6NH3, CoCl3.5NH3, CoCl3.4NH3 respectively is2017 · Q100 · MCQ
  29. Correct increasing order for the wavelengths of absorption in the visible region for the complexes of Co3+ is2017 · Q101 · MCQ
  30. Pick out the correct statement with respect to [Mn(CN)6]3−.2017 · Q102 · MCQ
  31. An example of a sigma bonded organometallic compound is2017 · Q99 · MCQ
  32. Which of the following has longest C−O bond length? (Free C−O bond length in CO is 1.128 Ao​.)2016 · Q100 · MCQ
  33. Jahn-Teller effect is not observed in high spin complexes of2016 · Q97 · MCQ
  34. The correct increasing order of trans-effect of the following species is2016 · Q98 · MCQ
  35. The name of complex ion, [Fe(CN)6]3− is2015 · Q69 · MCQ
  36. The sum of coordination number and oxidation number of the metal M in the complex [M(en)2(C2O4)]Cl (where en is ethylenediamine) is2015 · Q70 · MCQ
  37. The hybridization involved in complex [Ni(CN)4]2− is (At. No. Ni = 28)2015 · Q71 · MCQ
  38. Number of possible isomers for the complex [Co(en)2Cl2]Cl will be (en = ethylenediamine)2015 · Q72 · MCQ
  39. Which of these statements about [Co(CN)6]3− is true?2015 · Q75 · MCQ
  40. Cobalt (III) chloride forms several octahedral complexes with ammonia. Which of the following will not give test for chloride ions with silver nitrate at 25oC?2015 · Q91 · MCQ
  41. Which of the following complexes is used to be as an anticancer agent?2014 · Q79 · MCQ
  42. Among the following complexes the one which shows zero crystal field stabilization energy (CFSE) is2014 · Q80 · MCQ
  43. Which among the following is a paramagnetic complex?2013 · Q100 · MCQ
  44. Which is diamagnetic?2013 · Q101 · MCQ
  45. Nitrogen detection in an organic compound is carried out by Lassaigne's test. The blue colour formed corresponds to which of the following formulae?2013 · Q117 · MCQ
  46. In a particular isomer of [Co(NH3)4Cl2]o, the Cl−Co−Cl angle is 90o, this isomer is known as2013 · Q96 · MCQ
  47. The anion of acetylacetone (acac) forms Co (acac)3 chelate with Co3+. The rings of the chelate are2013 · Q97 · MCQ
  48. Crystal field splitting energy for high spin d4 octahedral complex is2013 · Q98 · MCQ
  49. The correct IUPAC name for [CrF2(en)2]Cl is2013 · Q99 · MCQ
  50. A magnetic moment at 1.73 BM will be shown by one among of the following2013 · Q100 · MCQ
  51. 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 be2013 · Q83 · MCQ
  52. Red precipitate is obtained when ethanol solution of dimethylglyoxime is added to ammoniacal Ni(II). Which of the following statements is not true? Includes diagram2012 · Q58 · MCQ
  53. Low spin complex of d6-cation in an octahedral field will have the following energy2012 · Q59 · MCQ
  54. Which one of the following is an outer orbital complex and exhibits paramagnetic behaviour?2012 · Q109 · MCQ
  55. Which of the following complex compounds will exhibit highest paramagnetic behaviour? (At. No. Ti = 22, Cr = 24, Co = 27, Zn = 30)2011 · Q54 · MCQ
  56. Which of the following carbonyls will have the strongest C–O bond ?2011 · Q55 · MCQ
  57. The complex, [Pt(Py)(NH3)BrCl] will have how many geometrical isomers ?2011 · Q101 · MCQ
  58. The d-electron configurations of Cr2+, Mn2+, Fe2+ and Co2+ are d4, d5, d6 and d7 respectively. Which one of the following will exhibit minimum paramagnetic behaviour? (At. Nos. Cr = 24, Mn = 25, Fe = 26, Co = 27)2011 · Q102 · MCQ
  59. The complexes [Co(NH3)6] [Cr(CN)6] and [Cr(NH3)6] [Co(CN)6] are the examples of which type of isomerism?2011 · Q103 · MCQ
  60. Of the following complex ions, which is diamagnetic in nature?2011 · Q104 · MCQ
  61. Which of the following carbonyls will have the strongest C − O bond?2011 · Q105 · MCQ
  62. Which of the following complex compounds will exhibit highest paramagnetic behaviour?2011 · Q106 · MCQ
  63. The existance of two different coloured complexes with the composition of [Co(NH3)4Cl2]+ is due to2010 · Q115 · MCQ
  64. Which of the following complex ions is not expected to absorb visible light?2010 · Q93 · MCQ
  65. Which one of the following complexes is not expected to exhibit isomerism?2010 · Q94 · MCQ
  66. Crystal field stabilization energy for high spin d4 octahedral complex is2010 · Q95 · MCQ
  67. Which of the following does not show optical isomerism? (en = ethylenediamine)2009 · Q107 · MCQ
  68. Out of TiF62−, CoF63−, Cu2Cl2 and NiCl42− (Z of Ti = 22, Co = 27, Cu = 29, Ni = 28) the colourless species are2009 · Q108 · MCQ
  69. Which of the following complex ions is expected to absorb visible light? (At. nos. Zn = 30, Sc = 21, Ti = 22, Cr = 24)2009 · Q87 · MCQ
  70. In which of the following coordination entities the magnitude of Δo (CFSE in octahedral field) will be maximum? (At. No. Co = 27)2008 · Q85 · MCQ
  71. Which of the following complexes exhibits the highest paramagnetic behaviour? where gly = glycine, en = ethylenediamine and bpy = bipyridyl moities. (At. nos. Ti = 22, V = 23, Fe = 26, Co = 27)2008 · Q86 · MCQ
  72. Which of the following will give a pair of enantiomorphs? (en = NH2CH2CH2NH2)2007 · Q72 · MCQ
  73. The d electron configurations of Cr2+, Mn2+, Fe2+ and Ni2+ are 3d4, 3d5, 3d6 and 3d8 respectively. Which one of the following aqua complexes will exhibit the minimum paramagnetic behaviour? (At. No. Cr = 24, Mn = 25, Fe = 26, Ni = 28)2007 · Q73 · MCQ
  74. [Cr(H2O)6]Cl3 (At. no. of Cr = 24) has a magnetic momen of 3.83 B.M. The correct distribution of 3d electrons in the chromium of the complex is2006 · Q85 · MCQ
  75. [Co(NH3)4(NO2)2]Cl exhibits2006 · Q86 · MCQ
  76. Which one of the following is an inner orbital complex as well as diamagnetic in behaviour?2005 · Q104 · MCQ
  77. Which one of the following is expected to exhibit optical isomerism? (en = ethylenediamine)2005 · Q105 · MCQ
  78. CN− is a strong field ligand. This is due to the fact that2004 · Q76 · MCQ
  79. In an octahedral structure, the pair of d orbitals involved in d2sp3 hybridisation is2004 · Q77 · MCQ
  80. Which of the following does not have a metal carbon bond?2004 · Q78 · MCQ
  81. Which of the following is considered to be an anticancer species?2004 · Q79 · MCQ
  82. Among [Ni(CO)4], [Ni(CN)4]2−, [NiCl4]2− species, the hybridisation states at the Ni atom are, respectively [Atomic number of Ni = 28]2004 · Q80 · MCQ
  83. Considering H2O as a weak field ligand, the number of unpaired electrons in [Mn(H2O)6]2+ will be (atomic number of Mn = 25)2004 · Q96 · MCQ
  84. Which of the following coordination compounds would exhibit optical isomerism?2004 · Q97 · MCQ
  85. The number of unpaired electrons in the complex ion [CoF6]3− is (Atomic no. : Co = 27)2003 · Q88 · MCQ
  86. Among the following which is not the π-bonded organometallic compound?2003 · Q89 · MCQ
  87. Atomic number of Cr and Fe are respectively 24 and 26, which of the following is paramagetic with the spin of electron?2002 · Q106 · MCQ
  88. The hypothetical complex chloro diaquatriammine cobalt(III) chloride can be represented as2002 · Q107 · MCQ
  89. CuSO4 when reacts with KCN forms CuCN, which is insoluble in water. It is soluble in excess of KCN, due to formation of the following complex2002 · Q108 · MCQ
  90. In the silver plating of copper, K[Ag(CN)2] is used instead of AgNO3. The reason is2002 · Q86 · MCQ
  91. Which of the following will give maximum number of isomers?2001 · Q80 · MCQ
  92. Which statement is incorrect?2001 · Q81 · MCQ
  93. Which of the following organometallic compounds is σ and π bonded?2001 · Q82 · MCQ
  94. Which of the following will exhibit maximum ionic conductivity?2001 · Q83 · MCQ
  95. Coordination number of Ni in [Ni(C2O4)3]4− is2001 · Q84 · MCQ
  96. Shape of Fe(CO)5 is2000 · Q81 · MCQ
  97. Which complex compound will give four isomers?2000 · Q82 · MCQ
  98. In quantitative analysis of second group in laboratory, H2S gas is passed in acidic medium for precipitation. When Cu2+ react with KCN, then for product, true statement is2000 · Q84 · MCQ