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BITSAT Coordination Compounds — practice questions — page 2

Explore 74 free Coordination Compounds questions in BITSAT Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Coordination Compounds questions and exercises with answers

Showing questions 31–60 of 74.

Denticity of a ligand refers to:Read the answer and worked solution →Werner's coordination theory introduced primary and secondary valencies. Primary valency corresponds to:Read the answer and worked solution →Oxidation state of Cr in [Cr(NH₃)₆]Cl₃:Read the answer and worked solution →EDTA is a:Read the answer and worked solution →In [Co(NH₃)₆]Cl₃, the number of ionizable Cl⁻ in solution is:Read the answer and worked solution →Isomerism where ligands occupy different positions in a square planar complex:Read the answer and worked solution →In Werner's compound CoCl₃·6NH₃, all NH₃ are bound to Co. Coordination number:Read the answer and worked solution →Crystal field splitting for d-orbitals in octahedral field. The five d orbitals split into:Read the answer and worked solution →Spectrochemical series ranks ligands by CFSE strength. Order (low to high):Read the answer and worked solution →IUPAC name for [Co(NH₃)₅Cl]Cl₂:Read the answer and worked solution →For [Fe(CN)₆]⁴⁻ (low spin), magnetic moment:Read the answer and worked solution →Magnetic moment for [Mn(H₂O)₆]²⁺ (high spin, d⁵):Read the answer and worked solution →Crystal Field Stabilization Energy (CFSE) for high-spin d⁵ octahedral:Read the answer and worked solution →Geometrical isomers of [Pt(NH₃)₂Cl₂] (square planar):Read the answer and worked solution →Optical isomers of [Co(en)₃]³⁺ (en = ethylenediamine):Read the answer and worked solution →Number of unpaired electrons in [Co(NH₃)₆]³⁺ (Co³⁺ is d⁶, strong field NH₃ → low spin):Read the answer and worked solution →Effective Atomic Number (EAN) of metal in [Ni(CO)₄]:Read the answer and worked solution →For octahedral d⁴ ion in strong field, electronic config:Read the answer and worked solution →Sort each ligand by how many donor atoms it usesRead the answer and worked solution →Match each term to its definitionRead the answer and worked solution →True or false: coordination numberRead the answer and worked solution →Counting the coordination numberRead the answer and worked solution →Match each complex to its shapeRead the answer and worked solution →Sort each complex by its geometryRead the answer and worked solution →Complete the coordination sphere ruleRead the answer and worked solution →True or false: ambidentate ligandsRead the answer and worked solution →Chelate or ambidentate?Read the answer and worked solution →Complete the definition of oxidation numberRead the answer and worked solution →Match each theory to what it explainsRead the answer and worked solution →Tap every failing of Valence Bond TheoryRead the answer and worked solution →

Worked practice questions

Denticity of a ligand refers to:

  1. Mass
  2. Its size
  3. Number of donor sites in a single ligand molecule
  4. Color
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Correct answer: C. Number of donor sites in a single ligand molecule

**Denticity:** number of atoms in the ligand that bind to the metal. Monodentate (1 site, e.g., NH₃), bidentate (2, e.g., en = ethylenediamine), polydentate (multiple, e.g., EDTA is hexadentate).

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Werner's coordination theory introduced primary and secondary valencies. Primary valency corresponds to:

  1. Color
  2. Coordination number
  3. Oxidation state of metal
  4. Magnetic moment
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Correct answer: C. Oxidation state of metal

Primary valency = oxidation state of central metal (ionizable). Secondary valency = coordination number (non-ionizable, fixed in space). Alfred Werner's 1893 theory; Nobel Prize 1913.

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Oxidation state of Cr in [Cr(NH₃)₆]Cl₃:

  1. +1
  2. +6
  3. +3 (NH₃ neutral, 3 Cl⁻; sum must equal 0 → Cr = +3)
  4. +2
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Correct answer: C. +3 (NH₃ neutral, 3 Cl⁻; sum must equal 0 → Cr = +3)

NH₃ is neutral, Cl⁻ is -1. [Cr(NH₃)₆]³⁺ × Cl₃ → Cr = +3. Common Cr(III) complex, octahedral, hexamine.

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