Hello Aspirant,

I am enlisting down all the important topics with their weightage for NEET 2020 :-

@PHYSICS

• Optics - 10%
• Semiconductors- 9%
• Dual nature of matter ,atoms and nuclei-9%
• Thermodynamics -9%
• Electrostatics-9%
• Current electricity -8%
• Electromagnetic Induction & Alternating Current-8%
• Laws of motion & work power energy-7%
• Magnetic Effect of Current & Magnetism-5%
• System of Particles and Rotational Motion-5%

@CHEMISTRY

• Coordination Compounds- 9%
• p-Block, d- and f-Block Elements- 9%
• Thermodynamics- 8%
• Equilibrium -6%
• Chemical bonding and molecular structure- 5%
• Solutions- 5%
• Organic Chemistry: Basic Principles & Techniques- 4%
• Alcohols, Phenols and Ethers :-4%
• Aldehydes, Ketones and Carboxylic Acids- 4%

@BIOLOGY

• Human physiology:- 20%
• Genetics and Evolution:-18%
• Diversity in living organism:- 14%
• Biology and Human Welfare:-9%
• Reproduction:- 9%
• Cell: Structure and Function:- 9 %
• Plant Physiology:- 6%
• Ecology and Environment:- 6%

For complete chapter wise weightage of all the chapters of physics, chemistry and Biology for NEET Examination, refer to the link given below :-

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

I hope this information helps you.

Good Luck!!