Chemical bonding carries 12–16 marks.
See shortcut trick for chemical bonding.
Hybridisation:
Inductive & mesomeric effect
https://youtu.be/u1KJ6lFofiI
Bond order
https://youtu.be/Fnti6qB7Fgs
Hydrogen bonding
https://youtu.be/VVqiUFjvxAo
Resonace & its stability
https://youtu.be/KTcDdzp_69I
That's the most important thing you can do.
The questions from this chapter are score making. Every year 2–3 questions (sometimes even more) come from this chapter and can be solved easily if you have understood it.
The tables and graphs in ncert are very important like the one of Shape and geometry, hybridisation, linear combination of atomic orbitals etc.
Read the chapters with full concentration and then solve previous year questions. If you want to practice more you can refer to Dinesh Objective book.
I am sharing my notes here from this chapter. Maybe it would be beneficial for you.
In the upper image you should compare hybridisation of NH3 or CH4 with water. Then it will be easier to understand it for a longer period.
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