CBSE 12 Chemistry · U5
Coordination Compounds
Werner's theory, coordination terms, nomenclature, isomerism, bonding, metal carbonyls, and applications of coordination compounds. Theory weightage: 7 marks.
Test yourself
A focused, distraction-free run through 25 multiple-choice questions. Hints if you need them; your score at the end.
Difficulty guide
The label describes the problem, not your ability.
1/5 - Foundational
Warm-up setup; checks one basic idea.
2/5 - Routine exam skill
Normal syllabus skill; usually one main rule or interpretation.
3/5 - Standard multi-step
Exam-style problem with multiple steps or a common trap.
4/5 - Hard exam skill
High-end exam problem; combines methods carefully.
5/5 - Challenge
Stretch problem beyond normal exam pressure.
Topic 5.1
Werner's Theory and Coordination Terms
Primary and secondary valencies, coordination sphere, ligand, denticity, coordination number, and oxidation state.
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Topic 5.2
Nomenclature and Formula Writing
IUPAC naming of mononuclear coordination compounds, ligand order, oxidation state, and formula construction.
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Topic 5.3
Isomerism in Coordination Compounds
Structural isomerism, linkage isomerism, ionisation isomerism, geometrical isomerism, and optical isomerism.
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Topic 5.4
Bonding, Colour and Magnetic Behaviour
Valence bond ideas, crystal-field splitting, strong and weak field ligands, spin state, colour, and magnetic moment.
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Topic 5.5
Metal Carbonyls and Applications
Synergic bonding in metal carbonyls and the biological, analytical, medicinal, and industrial uses of coordination compounds.
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