PRACTICE WORKSHEET: "Coordination Compounds" CLASS 12: BOARD EXAM: 2024-25@NEET EXAM 2025

 

Here’s a tabulation for the chapter "Coordination Compounds" for Class 12 (Fill-in-the-Blanks type):

FOR ANSWERS CLICK HERE: ANSWERS

Topic	Fill in the Blanks
1. Coordination Entity	A coordination entity consists of a central __________ atom/ion bonded to a fixed number of __________.
2. Ligands	Ligands are __________ species that donate a pair of __________ to the central atom in a coordination compound.
3. Coordination Number	The coordination number of a central atom is the number of __________ attached to it.
4. Types of Ligands	Ligands can be classified based on the number of donor atoms as __________, __________, and __________ ligands.
5. Monodentate Ligands	Ligands like __________ and __________ that have only one donor atom are called monodentate ligands.
6. Bidentate Ligands	Ligands like __________, which have two donor atoms, are called __________ ligands.
7. Chelation	The process by which a polydentate ligand forms a __________ ring structure with the central atom is called __________.
8. Coordination Number of [Co(NH₃)₆]³⁺	he coordination number of cobalt in the complex [Co(NH₃)₆]³⁺ is __________.
9. Oxidation State of Central Metal	The oxidation state of the central metal in [Fe(CN)₆]³⁻ is __________.
10. Werner’s Theory	According to Werner’s theory, a coordination compound has a __________ valency, also called coordination number, and a __________ valency or charge.
11. Isomerism in Coordination Compounds	Coordination compounds exhibit __________, __________, and __________ isomerism.
12. Geometrical Isomerism	Geometrical isomerism occurs in __________ and __________ complexes.
13. Crystal Field Theory	According to Crystal Field Theory, the __________ field splits the degenerate d-orbitals of the central metal ion into __________ and __________ sets.
14. Splitting in Octahedral Field	In an octahedral crystal field, the d-orbitals split into __________ and __________ orbitals.
15. Color of Coordination Compounds	The color of coordination compounds is due to __________ transitions between the __________ orbitals of the central metal ion.
16. Naming Complexes	In naming complexes, the ligands are named in __________ order, followed by the name of the __________ metal and its oxidation state in parentheses.
17. Example of a Chelate	An example of a chelate is __________.
18. Ambidentate Ligand Example	An example of an ambidentate ligand is __________, which can coordinate through either the __________ or the __________ atom.

This tabulation format is useful for students to actively recall and practice key concepts from the Coordination Compounds chapter.