Strategies for solving questions related to polymers and biomolecules in the chemistry section of the JEE Main exam:

1. Understand the concepts:
- Polymers: Familiarize yourself with the different types of polymers, such as addition polymers, condensation polymers, and copolymers. Understand the polymerization process, monomers, and their structures.
- Biomolecules: Gain a thorough understanding of biomolecules such as carbohydrates, proteins, lipids, and nucleic acids. Learn their structures, functions, and chemical reactions involved.

2. Memorize key formulas and reactions:
- For polymers, memorize the general formulas for addition and condensation polymerization reactions. Also, remember important reactions like addition of HBr to unsaturated polymers and the formation of polyesters and polyamides.
- For biomolecules, memorize important reactions like the hydrolysis of carbohydrates, hydrolysis of esters, and reactions involving nucleic acids.

3. Solve practice questions:
- Practice a wide range of questions from previous years' JEE Main papers and other relevant study materials.
- Start with basic questions and gradually move to more complex ones. This will help you develop a strong foundation and improve problem-solving skills.
- Pay attention to the different types of questions that can be asked, such as multiple-choice, numerical-based, and assertion-reasoning.

4. Focus on important topics:
- Identify the important topics within polymers and biomolecules that have been frequently asked in previous exams. Focus on these topics and ensure you have a thorough understanding of them.
- Some important topics in polymers include polymerization reactions, types of polymers, and their properties.
- In biomolecules, important topics include structure and functions of carbohydrates, proteins, lipids, and nucleic acids.

5. Review and revise:
- Regularly review and revise the concepts, formulas, and reactions related to polymers and biomolecules. This will help reinforce your understanding and improve retention.
- Create concise notes or flashcards summarizing the key points, formulas, and reactions. Use these notes for quick revisions before the exam.

6. Time management:
- While solving questions, manage your time wisely. Avoid spending too much time on a single question. If you get stuck, move on to the next question and come back to it later if you have time.

7. Seek help if needed:
- If you encounter any difficulties or have doubts, seek help from your teachers, classmates, or online platforms like EduRev. They can provide explanations, clarify doubts, and offer additional practice resources.

Remember to practice regularly, stay calm during the exam, and read questions carefully before attempting them. With thorough preparation and practice, you can excel in the polymers and biomolecules section of the JEE Main exam.