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Coordination Compounds question

2025 · 8 Apr · Shift 2 · Q15
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Coordination Compounds question

2025 · 8 Apr · Shift 2 · Q15

JEE MainChemistryCoordination CompoundsMCQ+4 / −1
Given below are two statements: Statement I: A homoleptic octahedral complex, formed using monodentate ligands, will not show stereoisomerism. Statement II: cis- and trans- platin are heteroleptic complexes of Pd. In the light of the above statements, choose the correct answer from the options given below:
  1. A
    Statement I is true but Statement II is false
  2. B
    Both Statement I and Statement II are true
  3. C
    Both Statement I and Statement II are false
  4. D
    Statement I is false but Statement II is true
View written solutionFree

Correct answer: A

  1. Analyze Statement I

    Statement I: A homoleptic octahedral complex, formed using monodentate ligands, will not show stereoisomerism.

    • Homoleptic means all ligands are identical.
    • Octahedral complex with monodentate ligands has the general form: [ML6][ML_6][ML6​]
    • Since all six ligands are the same, there is no possibility of:
      • geometrical isomerism (no different relative arrangement of unlike ligands),
      • optical isomerism (for a simple homoleptic octahedral complex, symmetry prevents chirality).

    Therefore, Statement I is true.

  2. Analyze Statement II

    Statement II: cis- and trans- platin are heteroleptic complexes of Pd.

    • cis-platin and trans-platin are: [Pt(NH3)2Cl2][Pt(NH_3)_2Cl_2][Pt(NH3​)2​Cl2​]
    • These are complexes of Pt (platinum), not Pd (palladium).
    • They are indeed heteroleptic because they contain two different kinds of ligands: NH3NH_3NH3​ and Cl−Cl^-Cl−.
    • But the metal mentioned in the statement is wrong.

    Therefore, Statement II is false.

  3. Choose the correct option

    • Statement I: True
    • Statement II: False

    Hence, the correct option is: A\boxed{A}A​

  4. Comparison with stored answer

    Stored correct answer: A

    My derived answer matches the stored answer.

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