JEE Questions for Chemistry Coordination Compounds Quiz 6 - MCQExams.com

CH3 MgI is an organometallic compound due to
  • Mg —I bond
  • C—I bond
  • C—Mg bond
  • C—H bond
What is the overall formation equilibrium constant for the ion [ML4]2- ion, given that β4 for this complex is 2.5 × 1013 ?
  • 2.5 × 1013
  • 5 × 10-13
  • 2.5 × 10-14
  • 4.0 × 10-13
  • 4.0 × 10-14
The equation which is balanced and represents the correct product (s) is
  • Li2O + 2KCl → 2LiCl + K2O
  • 2)
    Chemistry-Coordination Compounds-3118.png

  • Chemistry-Coordination Compounds-3119.png
  • CuSO4 + 4KCN → K2[Cu(CN)4] + K2SO4
EDTA4- is ethylenediaminetetraacetate ions. The total number of N—Co—O bond angles in [Co(EDTA)]- complex ion is
  • 8
  • 9
  • 2
  • 10
The atomic number of cobalt is 27. The EAN of cobalt in Na3[Co(NO2)4 Cl2] is
  • 24
  • 36
  • 34
  • 35
The complex that doesn't give a precipitate with AgNO3 solution
  • [Co(NH3)3 Cl3 ]
  • [Co(NH3 )6 ]Cl3
  • [Ag(NH3 )2 ]Cl
  • [Cr(NH3)4Cl2 ]Cl
Which of the following will not form optical isomers ?
  • [Co(en)3 ]3+
  • [Co(NH3 )3 (NO2 )3 ]
  • [Pt(en)2 Cl2 ]2+
  • [CrCl2 (ox)2 ]3-
The volume (in mL) of 0.1 M AgNO3 required for complete precipitation of chloride ions present in 30 mL of 0.01 M solution of [Cr(H2O)5 Cl] Cl2, as silver chloride is close to
  • 3
  • 4
  • 5
  • 6
Ammonia gas does not evolve from the complex FeCl3 ∙ 4NH3 but is gives white precipitate with aqueous solution of AgNO3. Coordination number of central metal ion in above complex is six. Give IUPAC name of the complex.
  • ammoniumtrichlorotriammineferrum (III)
  • tetraammineroferrum (III) chloride
  • dichlorotetraammineferrate (II) chloride
  • dichlorotetraammineferrum (III) chloride
For the square planar complex [Mabcd] (where, M = central metal and a, b, c and d are monodentate ligands), the number of possible geometrical isomers are
  • 1
  • 2
  • 3
  • 4

Chemistry-Coordination Compounds-3123.png
  • cis
  • trans
  • mer
  • fac
The complex ion which has the highest magnetic moment among the following is
  • [CoF6]3-
  • [Co(NH3)6 ]3+
  • [Ni(NH3)4]2+
  • [Ni(CN)4]2-
  • [Fe(CN)6]4-
The correct statement with respect to the complexes Ni(CO)4 and [Ni(CN)4]2- is
  • nickel is in the same oxidation state in both
  • both have tetrahedral geometry
  • both have square planar geometry
  • have square planar and tetrahedral geometry respectively
  • have tetrahedral and square planar geometry respectively
When EDTA solution is added to Mg 2+ ion solution, then which of the following statements is not true?
  • Four coordinate sites of Mg2+ are occupied by EDTA and remaining two sites are occupied by water molecules
  • All six coordinate sites of Mg2+ are occupied
  • pH of the solution is decreased.
  • Colourless [Mg-EDTA]2- chelate is formed
Ammonia forms the complex ion [Cu(NH3)4]2+ with copper ions in the alkaline solutions but not in acidic solutions. What is the reason for it ?
  • In acidic solutions hydration protects copper ions
  • 2)
    Chemistry-Coordination Compounds-3128.png
  • In alkaline solutions insoluble Cu(OH)2 is precipitated which is soluble in excess of any alkali
  • Copper hydroxide is an amphoteric substance
Which of the following statements is not correct ?
  • The complexes [NiCl4]2- and [Ni(CN)4 ]2- differ in the state of hybridisation of nickel
  • The complexes [NiCl4]2- and [Ni(CN)4]2- differ in the magnetic properties
  • The complexes [NiCl4]2- and [Ni(CN)4 ]2- differ in geometry
  • The complexes [NiCl4]2- and [Ni(CN)4 ]2- differ in primary valencies of nickel
  • Nickel ion has the same secondary valency in the complexes [NiCl4]2- and [Ni(CN)4 ]2-
Nickel (Z =combines with a uninegative monodentate ligand X - to form a paramagnetic complex [NiX4]2- . The number of unpaired electron(s) in the nickel and geometry of this complex ion are respectively
  • one, tetrahedral
  • two, tetrahedral
  • one, square planar
  • two, square planar
An example of double salt is
  • Bleaching powder
  • K4[Fe(CN)6]
  • Hypo
  • Potash alum
A solution of potassium ferrocyanide would contain......ions
  • 2
  • 3
  • 4
  • 5
The number of d-electrons in [Cr(H2O)6]3+ [At. No. of Cr = 24] is
  • 2
  • 3
  • 4
  • 5
The characteristic oxidation number of atoms in free metals is
  • Minus one
  • One
  • Any number
  • Zero
The oxidation state of copper in the above complex is
Chemistry-Coordination Compounds-3131.png
  • 0
  • 1
  • 2
  • 4
The colour of the above complex is
Chemistry-Coordination Compounds-3132.png
  • Blue
  • Green
  • Red
  • Violet
The possible number of isomers for the complex [MCI2Br2]SO4 is :
  • 1
  • 2
  • 4
  • 5
The number of geometrical isomers for [Pt(NH3)2Cl2] is
  • Two
  • One
  • Three
  • Four
In the metal carbonyls of the general formula M (CO)x where M = metal; x = 4, the metal is bonded to ?
  • carbon and oxygen
  • Carbon
  • Oxygen
  • C-O triple bond
The effective atomic number of central Cu (At. No.metal in [Cu(NH3)4]SO4 is
  • 29
  • 30
  • 35
  • 36
The number of unpaired electrons in Ni(CO)4 is/are
  • Zero
  • One
  • Four
  • Five
The number of geometrical isomers of the complex [Co(NO2)3(NH3)3] is
  • 2
  • 4
  • 3
  • 0
The oxidation state of Fe in brown ring complex [Fe (H2O)5NO] SO4 is
  • +1
  • +2
  • +3
  • +4
0:0:1


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