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JEE Advanced The d- and f-Block Elements & Coordination Compounds — practice questions — page 3

Explore 82 free The d- and f-Block Elements & 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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The d- and f-Block Elements & Coordination Compounds questions and exercises with answers

Showing questions 61–82 of 82.

True or false: ambidentate ligandsRead the answer and worked solution →Synergic bonding in metal carbonylsRead the answer and worked solution →Order the steps: read a formula like K₄[Fe(CN)₆]Read the answer and worked solution →Flip and pair: term with meaningRead the answer and worked solution →Reading the definitions backRead the answer and worked solution →True or false: where coordination chemistry mattersRead the answer and worked solution →Inside the brackets or outside?Read the answer and worked solution →Complete Werner's postulateRead the answer and worked solution →Assertion and reasonRead the answer and worked solution →Two are true, one is notRead the answer and worked solution →Match each theory to what it explainsRead the answer and worked solution →Chelate or ambidentate?Read the answer and worked solution →Ethylenediamine (en) is best described as a:Read the answer and worked solution →Complete the definition of oxidation numberRead the answer and worked solution →The biological molecule HAEMOGLOBIN contains which metal at its centre?Read the answer and worked solution →The IUPAC name of K3[Fe(CN)6] is:Read the answer and worked solution →Three of these are wrong. Find the one that holds.Read the answer and worked solution →The 'spin only' magnetic moment $\mu$ (in Bohr magnetons) of a transition metal ion with $n$ unpaired d-electrons is given by:Read the answer and worked solution →Among the 3d-series transition metals, the element that exhibits the largest number of oxidation states is:Read the answer and worked solution →Sort each ligand by how many donor atoms it usesRead the answer and worked solution →Tap every failing of Valence Bond TheoryRead the answer and worked solution →NEET · Chemistry · Tap the HalogensRead the answer and worked solution →

Worked practice questions

True or false: ambidentate ligands

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Questions
  1. Statement is true
    Yes
    Statement
    An ambidentate ligand has two different possible donor atoms.
  2. Statement is true
    Yes
    Statement
    NO₂⁻ can bind through nitrogen or through oxygen.
  3. Statement is true
    Yes
    Statement
    SCN⁻ can bind through sulphur or through nitrogen.
  4. Statement is true
    No
    Statement
    An ambidentate ligand uses both donor atoms at once.
  5. Statement is true
    Yes
    Statement
    A chelate ligand uses two or more donor atoms simultaneously.
An ambidentate ligand has two DIFFERENT donor atoms and uses only one of them at a time, which is what separates it from a chelate. Source: syllabus Chemistry Part I, Ch 5 Coordination Compounds.

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Synergic bonding in metal carbonyls

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Questions
  1. Question
    In a metal carbonyl, the ligand to metal bond is
    Choices
    1. a sigma bond
    2. a pi bond
    3. ionic
    Correct choice
    a sigma bond
  2. Question
    The metal to ligand bond is
    Choices
    1. a sigma bond
    2. a pi bond
    3. ionic
    Correct choice
    a pi bond
  3. Question
    This two-way arrangement is called
    Choices
    1. chelation
    2. ambidentate binding
    3. synergic bonding
    Correct choice
    synergic bonding
  4. Question
    Synergic bonding gives metal carbonyls
    Choices
    1. extra stability
    2. a permanent charge
    3. optical activity
    Correct choice
    extra stability
The metal-carbon bond runs both ways: sigma from ligand to metal, pi from metal back to ligand. Source: syllabus Chemistry Part I, Ch 5 Coordination Compounds.

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Order the steps: read a formula like K₄[Fe(CN)₆]

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Steps
  1. Identify what lies outside the square brackets as the counter ion
  2. Everything inside the brackets is the coordination sphere
  3. Within it, name the central metal atom or ion
  4. Count the donor atoms bonded to it for the coordination number
  5. Balance the charges to find the metal's oxidation number
Working from the outside in gets both the counter ion and the oxidation number right. Source: syllabus Chemistry Part I, Ch 5 Coordination Compounds.

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More Chemistry topics

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