JEE Questions for Chemistry Coordination Compounds Quiz 10 - MCQExams.com

Match each coordination compound in Column I with an appropriate pair of characteristics from Column II and select the correct answer using the code given below the columns. (en = H2NCH2CH2NH2; atomic numbers : Ti = 22 ; Cr = 24; Co = 27; Pt =
Chemistry-Coordination Compounds-3220.png
  • P = 4, Q = 2, R = 3, S = 1
  • P = 3, Q = 1, R = 4, S = 2
  • P = 2, Q = 1, R = 3, S = 4
  • P = 1, Q = 3, R =4, S = 2
The pair(s) of coordination complexes/ions exhibiting the same kind of isomerism is (are)
  • [Cr(NH3 )5 Cl] Cl2 and [Cr(NH3 )4Cl2 ]Cl
  • [Co(NH3 )4 Cl2]+ and [Pt(NH3 )2 (H2O)Cl]+
  • [CoBr2 Cl2 ]2- and [PtBr2 Cl2 ]2-
  • [Pt(NH3)3 (NO3)] Cl and [Pt(NH3 )3 Cl] Br
One mole of the complex compound Co(NH3 )5 Cl3 gives 3 moles of ions on dissolution in water. One mole of the same complex reacts with two moles of AgNO3 solution to yield two moles of AgCl. The structure of the complex is
  • [Co(NH3 )4Cl]Cl2 ∙ NH3
  • [Co(NH3 )4 Cl2 ]Cl ∙ NH3
  • [Co(NH3 )3 Cl3 ] ∙ 2NH3
  • [Co(NH3)5Cl]Cl2
Both Co3+ and Pt 4+ have a coordination number of six. Which of the following pairs of complexes will show approximately the same electrical conductance for their 0.001 M aqueous solutions?
  • CoCl2 ∙ 4NH3 and PtCl4 ∙ 4NH3
  • CoCl3 ∙ 3NH3 and PtCl4 ∙5NH3
  • CoCl3 ∙ 6NH3 and PtCl4 ∙5NH3
  • CoCl3 ∙ 6NH3 and PtCl4 ∙ 3NH3
The coordination compounds, [Co(NH3 )6 ]3+ [Cr(CN)6]3- and [Cr(NH3 )6 ]3+ [CO(CN)6]3- are the examples of
  • linkage isomerism
  • coordination isomerism
  • ionisation isomerism
  • geometrical isomerism

Chemistry-Coordination Compounds-3221.png
  • 3
  • 2
  • 4
  • 6
Match the following columns.
Chemistry-Coordination Compounds-3222.png
  • A = 5, B = 2, C = 4, D = 3
  • A = 2, B = 3, C = 4, D = 5
  • A = 2, B = 3, C = 1, D = 5
  • A = 3, B = 2, C = 4, D = 1
Match the following columns.
Chemistry-Coordination Compounds-3223.png
  • A = 6, B = 4, C = 1, D = 2, E = 3
  • A = 2, B = 4, C = 1, D = 6, E = 3
  • A = 2, B = 4, C = 1, D = 6, E = 5
  • A = 6, B = 4, C = 1, D = 2, E = 5
  • A = 2, B = 4, C = 3, D = 6, E = 5
The crystal field splitting energy for octahedral (∆O ) and tetrahedral (∆t) complexes is related to

  • Chemistry-Coordination Compounds-3224.png
  • 2)
    Chemistry-Coordination Compounds-3225.png

  • Chemistry-Coordination Compounds-3226.png

  • Chemistry-Coordination Compounds-3227.png
Which of the following complexes are not correctly matched with hybridisation of their central metal ion ?
I. [Ni(CO)4]sp3
II. [Ni(CN)4]2- sp3
III. [CoF6]3- d 2 sp3
IV. [Fe(CN)6]3- sp3 d 2
Select the correct answer using the codes given below.
  • I and II
  • I and III
  • II and IV
  • I, III and IV
  • II, III and IV
I. K4[Fe(CN)6]
II. K3[Cr(CN)6]
III. K3[Co(CN)6]
IV. K2[Ni(CN)4]
Select the complexes which are diamagnetic.
  • I, II and III
  • II, III and IV
  • I, III and IV
  • I, II and IV
  • II and IV

Chemistry-Coordination Compounds-3228.png

  • Chemistry-Coordination Compounds-3229.png
  • 2)
    Chemistry-Coordination Compounds-3230.png

  • Chemistry-Coordination Compounds-3231.png

  • Chemistry-Coordination Compounds-3232.png
A complex compound of cobalt has molecular formula containing five NH3 molecules, one nitro group and two chlorine atoms for one Co atom. one mole of this compound produces three mole ions in aq. Solution. On reacting with excess of AgNO3 solution, two moles of AgCl get precipitated. The ionic formula of the compound is
  • [Co(NH3)4NO2Cl][(NH3)Cl]
  • Co(NH3)5 Cl][Cl(NO2 )]
  • [Co(NH3)5 (NO)2]Cl2
  • [Co(NH3)5 ][(NO2 )Cl2]
Ammonia forms the complex ion [Cu(NH3)4]2+ with copper ions in alkaline solutions but not in acidic solutions.What is the reason for it ?
  • In acidic solutions, protons coordinate with ammonia molecules forming NH4+ ions and NH3 molecules are not available.
  • In alkaline solutions insolouble Cu(OH)2 is precipitated which is soluble in excess of any alkali.
  • Copper hydroxide is an amphoteric substance
  • In acidic solutions hydration protects copper ions.
The crystal field splitting energy for octahedral (∆0) and tetrahedral (∆t ) complexes is related to

  • Chemistry-Coordination Compounds-3234.png
  • 2)
    Chemistry-Coordination Compounds-3235.png

  • Chemistry-Coordination Compounds-3236.png

  • Chemistry-Coordination Compounds-3237.png
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