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Coordination Compounds

Telangana Open School (TOSS) · Class 12 · Chemistry

Complete topic list for Coordination Compounds in Telangana Open School (TOSS) Class 12 Chemistry. Key concepts, sub-topics, and what to focus on for board exams.

45 questions30 flashcards5 concepts

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4 Topics · Telangana Open School (TOSS) Class 12 Chemistry

Topics in Coordination Compounds

1

Werner's Coordination Theory

  • Metals exhibit two types of valency: primary (ionizable) and secondary (non-ionizable).
  • Primary valency corresponds to the oxidation state and is satisfied by anions.
  • Secondary valency is the coordination number and is satisfied by ligands (neutral or charged).
2

Important Terms in Coordination Chemistry

  • Ligand: molecule or ion bonded to the central metal via lone pair donation.
  • Monodentate ligands donate one electron pair (e.g., H₂O, NH₃).
  • Bidentate ligands donate two electron pairs (e.g., ethylenediamine 'en').
3

Nomenclature of Coordination Compounds

  • Cation named before anion.
  • Ligands named first in alphabetical order (ignoring prefixes), then metal.
  • Anionic ligands end in '-o' (e.g., Cl⁻ → chloro), neutral ligands use common name (e.g., NH₃ → ammine).
4

Valence Bond Theory (VBT)

  • VBT explains geometry and magnetic behavior via hybridization.
  • Inner orbital complexes use (n-1)d orbitals — low spin, diamagnetic or less paramagnetic.
  • Outer orbital complexes use nd orbitals — high spin, more paramagnetic.

Key Concepts

Central concept: Coordination Compounds

Werner's Coordination TheoryImportant TermsIUPAC NomenclatureValence Bond Theory (VBT)Crystal Field Theory (CFT)Color PropertiesBonding in Metal CarbonylsStability of Complexes

Frequently Asked Questions

What are the important topics in Coordination Compounds for Telangana Open School (TOSS) Class 12 Chemistry?
Coordination Compounds covers several key topics that are frequently asked in Telangana Open School (TOSS) Class 12 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Coordination Compounds — Telangana Open School (TOSS) Class 12 Chemistry?
Understand the core concepts first, then work through the 45 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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