Hi Khushboo,

The important topics of biomolecules chapter for class 12 CBSE board are listed below:-

• Classification of Carbohydrates
• Monosaccharides
• Disaccharides
• Polysaccharides
• Amino acids
• Peptides and Proteins
• Nucleic Acids

Feel free to ask doubts in the Comment Section.

I hope this information helps you.

Good Luck!