Hi Pradeep

I would recommend you a best book for preparation of chemistry. Its " Xam idea chemistry ' . It consist of model question papers, past years CBSE questions, the Ncert questions as well as the weightage and markings of each chapter in chemistry.

At the last page, there is a table given, mentioning the weightage for each chapter. You can easily prepare for your upcoming exam without any doubt after going through the weightage table.

All the best for your exam :)

Transition elements and coordinate chemistry

10%

Periodic table

10%

Thermodynamics and gaseous state


6.7%

Atomic structure

6.7%

Chemical Bonding

6.7%

Equilibrium

6.7%

Solid state

6.7%

Nuclear Chemistry

6.7%

Mole Concept

3.35%

Redox

3.35%

Electrochemistry

3.35%

Chemical kinetics

3.35%

Solution

3.35%

GOC
3.35%

Stereochemistry

3.35%

Hydrocarbon
3.35%

Alkyl Halides

3.35%

Carboxylic Acid and their Derivatives

3.35%

Carbohydrates and amino acids

3.35%

Aromatic Compounds

3.35%

Hello!!Since you have not mentioned the board,I'll mention the chapter wise weightage for NCERT board:

Solid State    -  4

Solutions   -  5

Electrochemistry  -   5

Chemical Kinetics  -  5

Surface Chemistry  -   4

General Principles & Processes of Isolation of Elements  -  3

p-Block Elements   -   8

d & f-Block Elements  -  5

Co-ordination Compounds   -   3

Haloalkanes & Haloarenes  -   4

Alcohols, Phenols & Ethers  -   4

Aldehydes, Ketones & Carboxylic Acids  -   6

Organic Compounds Containing Nitrogen  -   4

Biomolecules  -   4

Polymers  -   3

Chemistry in Everyday Life  -   3