According to NTA Information Bulletin, the topics covered under Chemical Bonding and Molecular Structure are:

"Valence electrons, ionic bond, covalent bond, bond parameters, Lewis structure, polar character of covalent bond, valence bond theory, resonance, geometry of molecules, VSEPR theory, concept of hybridization involving s, p and d orbitals and shapes of some simple molecules, molecular orbital theory of homonuclear diatomic molecules (qualitative idea only). Hydrogen bond."

Among these Orbitals, Valence bond theory, geometry of molecules ionic and covalent bonds, concept of hybridization are important topics. Having said that, you cannot leave the other topics because you do not want to be left surprised on the day of the exam. If you are looking for NEET preparation online, we do have knock out series that might help you: https://learn.careers360.com/knockout-neet-may/

Hello,

It is unpredicatable to say like that as the paper is made by the board officials and they can give from any where of the syllabus. The topic which was not asked previous year , this year may 5 questions may come from it directly or indirectly related questions as chapters are inter-related.

don't look for shortcuts. Read as per your convenience and learn and understand them. This is the meaning of learning. If you try to remember them you will forget them after few hours and will easily get confused at exam centre.

Here is the link for the important section and weightage:-

https://medicine.careers360.com/articles/neet-chapter-wise-weightage-and-important-topics

This weightage list prediction is done from the previous year exam papers and may not be 100% accurate so plan accordingly and prepare yourself.

Hope it helps!