However, I can provide you with some topics and concepts that you can include in your test for class 12 biology and chemistry:

Biology:

1. Genetics and evolution
2. Human reproductive system
3. Ecology and environment
4. Microbes in human welfare
5. Biotechnology and its applications
6. Human health and diseases
7. Plant physiology
8. Animal physiology
9. Biotechnology principles and processes
10. Strategies for enhancement of food production

Chemistry:

1. Solid-state
2. Solutions
3. Electrochemistry
4. Chemical kinetics
5. Surface chemistry
6. General principles and processes of isolation of elements
7. p-Block elements
8. d- and f- block elements
9. Coordination compounds
10. Haloalkanes and haloarenes
11. Alcohols, phenols, and ethers
12. Aldehydes, ketones, and carboxylic acids
13. Organic compounds containing nitrogen
14. Biomolecules
15. Polymers
16. Chemistry in everyday life

You can frame questions based on these topics and concepts. Additionally, you can also include some numerical problems and give some practical questions to test the practical understanding of the students.

NEET & JEE PREPARATION SERIES | Complete MBBS, IT & Software Course | 50+ docs, 2 tests - Awantika Gupta | EduRev