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JEE Advanced Unit 2B1: Transition Metals & Coordination Compounds — practice questions — page 2

Explore 61 free Unit 2B1: Transition Metals & Coordination Compounds questions in JEE Advanced Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Unit 2B1: Transition Metals & Coordination Compounds questions and exercises with answers

Showing questions 31–60 of 61.

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 →Match the transition metal ion to its aqueous colourRead the answer and worked solution →Spot the odd property among d-block elementsRead the answer and worked solution →Pop the lanthanides — skip the othersRead the answer and worked solution →For 1 mol of CoCl₃·4NH₃ (green or violet isomer), moles of AgCl precipitated by excess AgNO₃ isRead the answer and worked solution →EDTA⁴⁻ acts as which type of ligand when fully coordinated to a metal ion?Read the answer and worked solution →The oxidation state of Fe in K₄[Fe(CN)₆] isRead the answer and worked solution →The coordination number of Fe in [Fe(C₂O₄)₃]³⁻ isRead the answer and worked solution →Which of these ligands is ambidentate — capable of binding through either of two different donor atoms?Read the answer and worked solution →The IUPAC name of [Ni(NH₃)₆]Cl₂ isRead the answer and worked solution →Which coordination polyhedron does [Ni(CO)₄] adopt?Read the answer and worked solution →Which of the following is a homoleptic complex?Read the answer and worked solution →The primary and secondary valences of Co in [Co(NH₃)₆]Cl₃ are respectivelyRead the answer and worked solution →Chelate complexes tend to be more stable than similar complexes with unidentate ligands. This effect is calledRead the answer and worked solution →The correct order of ligand denticity, from smallest to largest, isRead the answer and worked solution →The coordination sphere of K₄[Fe(CN)₆] isRead the answer and worked solution →

Worked practice questions

EDTA is a:

  1. Monodentate
  2. Tetradentate
  3. Bidentate
  4. Hexadentate (4 oxygens + 2 nitrogens)
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Correct answer: D. Hexadentate (4 oxygens + 2 nitrogens)

EDTA (ethylenediaminetetraacetate) is hexadentate: 4 O atoms (from carboxylate) + 2 N atoms. Forms very stable 1:1 complexes with most metals (Ca²⁺, Fe³⁺, etc.). Used in water softening, chelation therapy.

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In [Co(NH₃)₆]Cl₃, the number of ionizable Cl⁻ in solution is:

  1. 1
  2. 0
  3. 2
  4. 3 (all Cl⁻ are outside coordination sphere)
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Correct answer: D. 3 (all Cl⁻ are outside coordination sphere)

[Co(NH₃)₆]Cl₃ → [Co(NH₃)₆]³⁺ + 3 Cl⁻ in water. All 3 Cl⁻ are counter ions, not coordinated. **So gives precipitate of 3 AgCl with AgNO₃.**

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Isomerism where ligands occupy different positions in a square planar complex:

  1. Optical
  2. Geometric (cis-trans)
  3. Linkage
  4. Ionization
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Correct answer: B. Geometric (cis-trans)

Square planar MA₂B₂ has cis (A's adjacent) and trans (A's opposite) isomers. **Famous example:** cisplatin [PtCl₂(NH₃)₂] (anticancer drug) vs transplatin (inactive).

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More Chemistry topics

Aldehydes, Ketones and Carboxylic AcidsStructure of AtomElectrochemistryThe d- and f-Block Elements & Coordination CompoundsRedox ReactionsChemical KineticsOrganic Chemistry: Some Basic Principles and TechniquesEquilibrium