Hey Priyanka!

You can find the most important questions for first unit test for class 10th science from the given link for downloading pdf:

https://school.careers360.com/download/ebooks/cbse-class-10-science-important-questions-answers-pdf-2025-26

The pdf has questions which are mostly repeated in board exams hence there are high chances that these will be asked in your test in order to provide you an insight of actual exam.

The questions may not be directly asked in your test but if you solve these important questions from pdf then also you will be able to solve the questions coming in test.