Hello kumar,
The important topics that has more weightage in biology for neet exam are
1.**biological classification which covers a vast questions of 9 out of 90 so be concentrate on this topic more
2.digestion and absorption also carries each one one question
3.**molecular basis of inheritance has  a weightage of 6 questions
4.plant kingdom(6m) ,gentics (5m)and ecology(5m) ,reproduction in flowering plant(5m) consists more weightage in biology for neet.
   Coming to chemistry,
The more weightage is given to ** organic chemistry -2 having 13 marks .
Secondly, inorganic chemistry -1& inorganic chemistry -2 having 8 marks weightage
Thirdly,physical chemistry -1 is consisting  weightage of 7 marks

Prepare according to the more weightage topics so that it will increase your score
Good luck,
Thank you

Hello Kumar
In chemistry and biology you can easily get the marks you should learn the NCERT books
And later on I will provide the link from careers 360
Which provides the topics of physics and mathematics and chemistry in the NEET

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


Thank you sir

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