my chemistry exam is on 7 march how can i prepare for that i don't have ncert. give be strategy for 3 days i only have modern book

Hello student you need NCERT for preparing of chemistry examination because in the chemistry the ncert is like bible but as you didn't have the book and examination is knocking at the door. Prepare with the book which you've solve all the examples and exercises questions.
Prepare a chart and learn all the reaction from organic chemistry.
And must solve atleast 5 previous year question paper.

Feel free to comment if you have any doubt
Good luck