1.

    Amongst Ni(CO)4,  [Ni(CN)4]2−  {\rm{Ni}}{\left( {{\rm{CO}}} \right)_4},\,\,{\left[ {{\rm{Ni}}{{\left( {{\rm{CN}}} \right)}_4}} \right]^{2 - }}{\rm{\;}} and [NiCl4]2−{\left[ {{\rm{NiC}}{{\rm{l}}_4}} \right]^{2 - }}

    A

    [Ni(CO)4],    [NiCl4]2−\left[ {{\rm{Ni}}{{\left( {{\rm{CO}}} \right)}_4}} \right],{\rm{\;\;}}{\left[ {{\rm{NiC}}{{\rm{l}}_4}} \right]^{2 - }} are diamagnetic and [Ni(CN)4]2−{\left[ {{\rm{Ni}}{{\left( {{\rm{CN}}} \right)}_4}} \right]^{2 - }} is paramagnetic

    B

    [NiCl4]2−,  [Ni(CN)4]2−{\left[ {{\rm{NiC}}{{\rm{l}}_4}} \right]^{2 - }},{\rm{\;}}{\left[ {{\rm{Ni}}{{\left( {{\rm{CN}}} \right)}_4}} \right]^{2 - }} are diamagnetic and [Ni(CO)4]\left[ {{\rm{Ni}}{{\left( {{\rm{CO}}} \right)}_4}} \right] is paramagnetic

    C

    [Ni(CO)4],  [Ni(CN)4]2−\left[ {{\rm{Ni}}{{\left( {{\rm{CO}}} \right)}_4}} \right],{\rm{\;}}{\left[ {{\rm{Ni}}{{\left( {{\rm{CN}}} \right)}_4}} \right]^{2 - }} are diamagnetic and [NiCl4]2−{\left[ {{\rm{NiC}}{{\rm{l}}_4}} \right]^{2 - }} is paramagnetic

    D

    [Ni(CO)4]\left[ {{\rm{Ni}}{{\left( {{\rm{CO}}} \right)}_4}} \right] is diamagnetic and [NiCl4]2−  ,  [Ni(CN)4]2−{\left[ {{\rm{NiC}}{{\rm{l}}_4}} \right]^{2 - }}{\rm{\;}},{\rm{\;}}{\left[ {{\rm{Ni}}{{\left( {{\rm{CN}}} \right)}_4}} \right]^{2 - }} are paramagnetic

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Coordination Compounds
    🎯Topic:Valence Bond Theory
    🎓 Ncert Level:Analyzing
    🎯Difficulty :Medium
    ⚡ Time Required :3 mins
    🔄Ncert Concepts :Coordination Chemistry, Ligand Field Theory, Diamagnetism, Paramagnetism, Electronic Configuration, Strong Field Ligands, Weak Field Ligands

    Related Questions

    1.

    The hybridization involved in [CoF6]3−{\left[ {{\rm{Co}}{{\rm{F}}_6}} \right]^{3 - }} is:

    A

    d2sp3{d^2}s{p^3}

    B

    d3sp2{d^3}s{p^2}

    C

    dsp3ds{p^3}

    D

    sp3d2s{p^3}{d^2}

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Coordination Compounds
    🎯Topic:Valence Bond Theory
    🎓 Ncert Level:Application
    🎯Difficulty :Easy
    ⚡ Time Required :3 mins
    🔄Ncert Concepts :Coordination Chemistry, Hybridization, Ligand Field Theory

    2.

    The complex ion which has no ‘d’-electron in the central metal atom is:

    A

    [MnO4]−{\left[ {{\rm{Mn}}{{\rm{O}}_4}} \right]^ - }

    B

    [Co(NH3)6]3+{\left[ {{\rm{Co}}{{\left( {{\rm{N}}{{\rm{H}}_3}} \right)}_6}} \right]^{3 + }}

    C

    [Fe(CN)6]3−{\left[ {{\rm{Fe}}{{\left( {{\rm{CN}}} \right)}_6}} \right]^{3 - }}

    D

    [Cr(H2O)6]3+{\left[ {{\rm{Cr}}{{\left( {{{\rm{H}}_2}{\rm{O}}} \right)}_6}} \right]^{3 + }}

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Coordination Compounds
    🎯Topic:Valence Bond Theory
    🎓 Ncert Level:Analyzing
    🎯Difficulty :Easy
    ⚡ Time Required :3 mins
    🔄Ncert Concepts :coordination chemistry, oxidation states, electronic configuration, d-electrons

    3.

    The hybridization of central metal ion and shape of Wilkinson’s catalyst is

    A

    sp3d,s{p^3}d, trigonal bipyramidal

    B

    sp3,s{p^3}, tetrahedral

    C

    dsp2,ds{p^2}, squre planar

    D

    d2sp2,{d^2}s{p^2}, octahedral

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Coordination Compounds
    🎯Topic:Valence Bond Theory
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :hybridization, coordination chemistry, transition metal complexes, VSEPR theory

    4.

    Which one of the following shows maximum value of paramagnetic behaviour?

    A

    [Sc(CN)6]3−{\left[ {{\rm{Sc}}{{\left( {{\rm{CN}}} \right)}_6}} \right]^{3 - }}

    B

    [Co(CN)6]3−{\left[ {{\rm{Co}}{{\left( {{\rm{CN}}} \right)}_6}} \right]^{3 - }}

    C

    [Ni(CN)4]2−{\left[ {{\rm{Ni}}{{\left( {{\rm{CN}}} \right)}_4}} \right]^{2 - }}

    D

    [Cr(CN)6]3−{\left[ {{\rm{Cr}}{{\left( {{\rm{CN}}} \right)}_6}} \right]^{3 - }}

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Coordination Compounds
    🎯Topic:Valence Bond Theory
    🎓 Ncert Level:Analyzing
    🎯Difficulty :Medium
    ⚡ Time Required :3 mins
    🔄Ncert Concepts :Paramagnetism, Coordination Complexes, Crystal Field Theory, Electronic Configuration, Oxidation State

    5.

    Hexafluoroferrate(III) ion is an outer orbital complex. The number of unpaired electrons present in it is:

    A

    1

    B

    5

    C

    4

    D

    Unpredictable

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Coordination Compounds
    🎯Topic:Valence Bond Theory
    🎓 Ncert Level:Application
    🎯Difficulty :Easy
    ⚡ Time Required :3 mins
    🔄Ncert Concepts :Coordination Chemistry, Crystal Field Theory, Electronic Configuration, Hund's Rule

    6.

    Which of the following complex has zero magnetic moment (spin only)?

    A

    [Ni(NH3)6]Cl2\left[ {{\rm{Ni}}{{\left( {{\rm{N}}{{\rm{H}}_3}} \right)}_6}} \right]{\rm{C}}{{\rm{l}}_2}

    B

    Na3[FeF6]{\rm{N}}{{\rm{a}}_3}\left[ {{\rm{Fe}}{{\rm{F}}_6}} \right]

    C

    [Cr(H2O)6]SO4\left[ {{\rm{Cr}}{{\left( {{{\rm{H}}_2}{\rm{O}}} \right)}_6}} \right]{\rm{S}}{{\rm{O}}_4}

    D

      K4[Fe(CN)6]\;{{\rm{K}}_4}\left[ {{\rm{Fe}}{{\left( {{\rm{CN}}} \right)}_6}} \right]

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Coordination Compounds
    🎯Topic:Valence Bond Theory
    🎓 Ncert Level:Analyzing
    🎯Difficulty :Easy
    ⚡ Time Required :3 mins
    🔄Ncert Concepts :Coordination Chemistry, Crystal Field Theory, Magnetic Moment, Ligand Strength, Electronic Configuration

    7.

    Which have octahedral shape (d2sp3)({d^2}s{p^3}) hybridization of central atom?

    A

    SF6

    B

    PF5

    C

    BF3

    D

    XeF6

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Coordination Compounds
    🎯Topic:Valence Bond Theory
    🎓 Ncert Level:Analyzing
    🎯Difficulty :Medium
    ⚡ Time Required :3 mins
    🔄Ncert Concepts :Coordination Chemistry, Hybridization, Octahedral Geometry, d-orbital splitting

    8.

    The shape of the complex [Ag(NH3)2]+{\left[ {{\rm{Ag}}{{\left( {{\rm{N}}{{\rm{H}}_3}} \right)}_2}} \right]^ + } is:

    A

    Octahedral

    B

    Square planar

    C

    Tetrahedral

    D

    Linear

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Coordination Compounds
    🎯Topic:Valence Bond Theory
    🎓 Ncert Level:Application
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Coordination Chemistry, VSEPR Theory, Complex Ion Geometry

    9.

    Atomic numbers of   Cr  and  Fe\;Cr\,\,{\rm{and}}\,\,Fe are respectively 24 and 26. Which of the following is paramagnetic with the spin of the electron?

    A

    [Cr(CO)6]\left[ {{\rm{Cr}}{{\left( {{\rm{CO}}} \right)}_6}} \right]

    B

    [Fe(CO)5]\left[ {{\rm{Fe}}{{\left( {{\rm{CO}}} \right)}_5}} \right]

    C

    [Fe(CN)6]4−{\left[ {{\rm{Fe}}{{\left( {{\rm{CN}}} \right)}_6}} \right]^{4 - }}

    D

    [Cr(NH3)6]3+{\left[ {{\rm{Cr}}{{\left( {{\rm{N}}{{\rm{H}}_3}} \right)}_6}} \right]^{3 + }}

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Coordination Compounds
    🎯Topic:Valence Bond Theory
    🎓 Ncert Level:Analyzing
    🎯Difficulty :Medium
    ⚡ Time Required :3 mins
    🔄Ncert Concepts :atomic number, electronic configuration, oxidation state, ligand field theory, paramagnetism, spin of electron

    10.

    K3CoF6{{\rm{K}}_3}{\rm{Co}}{{\rm{F}}_6} is high spin complex. What is the hybrid state of Co−{\rm{Co}} - atom in this complex?

    A

    sp3ds{p^3}d

    B

    sp3d2s{p^3}{d^2}

    C

    d2sp3{d^2}s{p^3}

    D

    dsp2ds{p^2}

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Coordination Compounds
    🎯Topic:Valence Bond Theory
    🎓 Ncert Level:Application
    🎯Difficulty :Easy
    ⚡ Time Required :3 mins
    🔄Ncert Concepts :Coordination Chemistry, Hybridization, Crystal Field Theory, High Spin Complexes

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