i want very short but to the point notes for coordination compounds class 12 according to ncert cbse

Sure, here are some short notes on Coordination Compounds for Class 12 according to NCERT CBSE:

1. Coordination Compounds: These are the compounds that contain a central metal atom or ion surrounded by a number of neutral molecules or ions called ligands.

2. Ligands: These are ions or molecules that donate a pair of electrons to the central metal atom or ion. They can be negatively charged, positively charged, or neutral.

3. Coordination Number: This is the total number of ligand donor atoms attached to the central metal ion or atom.

4. Werner's Theory: Alfred Werner proposed the concept of primary and secondary valencies. Primary valencies are normally ionizable and are satisfied by negative ions, while secondary valencies are non-ionizable.

5. Types of Ligands: Monodentate, bidentate, polydentate, and ambidentate.

6. Nomenclature: The cation is named first in both positively and negatively charged coordination entities. The ligands are named in alphabetical order before the name of the central atom/ion.

7. Isomerism: Coordination compounds exhibit two types of isomerism - Structural Isomerism and Stereoisomerism.

8. Bonding in Coordination Compounds: Valence Bond Theory (VBT) and Crystal Field Theory (CFT) are used to explain the formation of coordination compounds.

9. Colour of Coordination Compounds: The colour of the coordination compound is due to the d-d transition of the unpaired electrons.

10. Stability of Coordination Compounds: The stability of a coordination compound is determined by the crystal field stabilization energy (CFSE).

Remember, these are just short notes. For a detailed understanding, you should refer to the NCERT textbook.