JEE Main Coordination Compounds — practice questions
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Practice JEE Main Coordination Compounds in the app →The IUPAC name of the coordination compound $[\mathrm{Co(NH_3)_6}]\mathrm{Cl_3}$ is:The total number of unidentate ligand atoms directly bonded to the central metal atom in a coordination comple
An octahedral complex of the type $[\mathrm{MX_2Tetrahedral complexes of the type $[\mathrm{Ma_2b_2}]$ (where a and b are unidentate ligands) do **not** exhib
The octahedral complex $[\mathrm{Co(NH_3)_6}]^{In octahedral crystal-field splitting, what is the energy of the $e_g$ orbitals **relative to** the $t_{2g}$ oTransition metal complexes are typically coloured because of:Among $\mathrm{Sc^{3+}}$, $\mathrm{Ti^{4+}}$, $\mathrm{V^{2+}}$ and $\mathrm{Zn^{2+}}$, which is **coloured** In a coordination compound, the central atom is usually:Coordination number is:In [Cu(NH3)4]²⁺ what is the oxidation number of Cu?What is the coordination number in [Co(NH3)6]³⁺?What is the geometry of complex with coordination number 6 typically?What is the geometry of [Ni(CN)4]²⁻?Crystal Field Theory: in an OCTAHEDRAL field, the d-orbitals split into:Spectrochemical series (ligand strength): which is a STRONG-field ligand?Which type of isomerism arises when two ligands can bind through different donor atoms (e.g., NO2⁻ via N vs O)Cis and trans isomers of [Co(NH3)4Cl2]⁺ are examples of:Which complex is paramagnetic?EDTA is a:The complex [Fe(CN)6]⁴⁻ is:In strong-field octahedral, electron filling order in d-orbitals follows:Oxidation state of Co in [Co(NH3)5Cl]Cl2:Number of geometric isomers of [Pt(NH3)2Cl2] (square planar):For octahedral d6 with weak-field ligands (high-spin), number of unpaired electrons:For octahedral d6 with STRONG-field ligands (low-spin), number of unpaired electrons:Number of unpaired electrons in [FeF6]³⁻ (high-spin, F⁻ weak-field):Hybridization in [Ni(CO)4] (Ni is 0 oxidation state, sp3 because CO is strong-field for Ni⁰):For [Cr(H2O)6]³⁺, d-electron count and magnetic behavior:Which one is an ambidentate ligand?For octahedral [Mn(H2O)6]²⁺, d-electron count and unpaired e⁻ count:Name of complex K3[Fe(CN)6]:For [Cu(NH3)4(H2O)2]²⁺ (octahedral with 4 NH3 equatorial + 2 H2O axial), this is:In coordination compound [Cu(NH₃)₄]SO₄, the central metal is:Coordination number of a metal is:Denticity of a ligand refers to:Werner's coordination theory introduced primary and secondary valencies. Primary valency corresponds to:Oxidation state of Cr in [Cr(NH₃)₆]Cl₃:EDTA is a:In [Co(NH₃)₆]Cl₃, the number of ionizable Cl⁻ in solution is:Isomerism where ligands occupy different positions in a square planar complex:In Werner's compound CoCl₃·6NH₃, all NH₃ are bound to Co. Coordination number:Crystal field splitting for d-orbitals in octahedral field. The five d orbitals split into:Spectrochemical series ranks ligands by CFSE strength. Order (low to high):IUPAC name for [Co(NH₃)₅Cl]Cl₂:For [Fe(CN)₆]⁴⁻ (low spin), magnetic moment:Magnetic moment for [Mn(H₂O)₆]²⁺ (high spin, d⁵):Crystal Field Stabilization Energy (CFSE) for high-spin d⁵ octahedral:Geometrical isomers of [Pt(NH₃)₂Cl₂] (square planar):Optical isomers of [Co(en)₃]³⁺ (en = ethylenediamine):Number of unpaired electrons in [Co(NH₃)₆]³⁺ (Co³⁺ is d⁶, strong field NH₃ → low spin):Effective Atomic Number (EAN) of metal in [Ni(CO)₄]:For octahedral d⁴ ion in strong field, electronic config:Ethylenediamine (en) is best described as a:In an octahedral complex like $[Co(NH_3)_6]^{3+}$, the coordination number of cobalt is:The complex $[Pt(NH_3)_2Cl_2]$ (square planar) shows:In crystal field theory, the d-orbitals of an octahedral metal complex split into:In Werner's theory of coordination compounds, the PRIMARY valency corresponds to:The coordination number 6 most commonly gives which geometry?The IUPAC name of K3[Fe(CN)6] is:The drug CISPLATIN has the formula [Pt(NH3)2Cl2]. Its anti-cancer activity comes from the:In Valence Bond Theory, an octahedral LOW-SPIN complex like [Co(NH3)6]³⁺ uses which hybridisation?In Crystal Field Theory, the 5 d-orbitals in an OCTAHEDRAL field split into:In the spectrochemical series, which ligand is the STRONGEST field?The unusual stability of EDTA-metal complexes is mainly due to the:The biological molecule HAEMOGLOBIN contains which metal at its centre?Werner used solution conductivity + AgCl precipitation of Co(III)-chloride-ammonia compounds. For 1 mol of CoCFor 1 mol of CoCl₃·4NH₃ (green or violet isomer), moles of AgCl precipitated by excess AgNO₃ isEDTA⁴⁻ acts as which type of ligand when fully coordinated to a metal ion?The oxidation state of Fe in K₄[Fe(CN)₆] isThe coordination number of Fe in [Fe(C₂O₄)₃]³⁻ isWhich of these ligands is ambidentate — capable of binding through either of two different donor atoms?The IUPAC name of [Ni(NH₃)₆]Cl₂ isWhich coordination polyhedron does [Ni(CO)₄] adopt?Which of the following is a homoleptic complex?The primary and secondary valences of Co in [Co(NH₃)₆]Cl₃ are respectivelyChelate complexes tend to be more stable than similar complexes with unidentate ligands. This effect is calledThe correct order of ligand denticity, from smallest to largest, isThe coordination sphere of K₄[Fe(CN)₆] isThe correct IUPAC name of [NiCl₂(PPh₃)₂] isWhich of the following is TRUE about a double salt vs a complex?