Hello,

As per the syllabus of chemistry basic important are:

• General Organic Chemistry
• Thermodynamics
• Reaction Mechanisms
• Named Reactions

Hi

CHEMISTRY:-

DO OR DIE CHAPTERS

1. General Organic Chemistry
2. Alcohol Phenols and Ethers
3. Redox Reactions
4. Chemical Bonding
5. Coordination Chem
6. Inorganic Chem
7. Aldehyde and Ketones
8. Solutions
9. Solid State

IMPORTANT TOPICS

1. Chemical Thermodynamics
2. Ionic Equilibrium
3. Chemical Equilibrium
4. Surface Chemistry
5. Periodic Classifications
6. Atomic Structure
7. Metallurgy
8. Gaseous State
9. D and F block
10. Polymers
11. OTHERS:-
    1. Chemical kinetics
    2. Biomolecules
    3. Electro chem
    4. other organic topics

Although make sure to go through entire book

Hope this helps

Hello  Lakshmi Prabha,

This are the topics that carry more weightage and marks in Chemistry in JEE 2020.

Atomic Structure
Gaseous State
Hydrocarbons
Aldehydes and Ketones
d & f Block Elements
General Organic Chemistry
Chemical Equilibrium
Ionic Equilibrium
Thermodynamics
Hydrogen and its Compounds
s-Block Elements

Hope this helps you...