Class 12 Chemistry — Chapter 5: Coordination Compounds

What you'll learn

• ▸Werner's Theory of Coordination Compounds
• ▸Definitions of Coordination Entity and Central Atom/Ion
• ▸Ligands, Denticity, and Chelation
• ▸Coordination Number and Coordination Sphere
• ▸Double Salts vs. Complex Compounds
• ▸Ambidentate Ligands

Chapter Summary

--- PAGE 1 --- Unit 5 Coordination Compounds Objectives After studying this Unit, you will be able to • appreciate the postulates of Werner's theory of coordination compounds; • know the meaning of the terms: coordination entity, central atom/ ion, ligand, coordination number, coordination sphere, coordination polyhedron, oxidation number, homoleptic and heteroleptic; • learn the rules of nomenclature of coordination compounds; • write the formulas and names of mononuclear coordination compounds; • define different types of isomerism in coordination compounds; • understand the nature of bonding in coordination compounds in terms of the Valence Bond and Crystal Field theories; • appreciate the importance and applications of coordination compounds in our day to day life. Coordination Compounds are the backbone of modern inorganic and bio-inorganic chemistry and chemical industry. In the previous Unit we learnt that the transition metals form a large nu…

Practice Questions from this Chapter

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1. Explain coordination compounds simply. Get Solution →
2. List everyday coordination compound examples. Get Solution →
3. Describe Werner's key ideas. Get Solution →
4. Who was the first scientist to formulate his ideas about the structures of coordination compounds? Get Solution →
5. The biological molecule haemoglobin is a coordination compound of which metal? Get Solution →
6. According to Werner's theory, the primary valences are normally satisfied by what? Get Solution →
7. What is the term for the central atom/ion and the ligands attached to it, enclosed in a square bracket? Get Solution →
8. Complexes in which a metal is bound to only one kind of donor group, e.g., [Co(NH₃)₆]³⁺, are known as what? Get Solution →

Did you know?

• 💡 Chlorophyll, which makes plants green, is a special coordination compound.
• 💡 Your blood's red color comes from hemoglobin, an iron coordination compound.
• 💡 Some shiny metals, like nickel, are purified using coordination compounds.
• 💡 The first person to understand coordination compounds won a Nobel Prize.
• 💡 Vitamin B12, essential for your body, contains a cobalt coordination compound.

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