You can take chapter-wise tests for every chapter but it is not possible to select chapters as you wish and take a mixed test.
You can also take Part Tests which comprises of certain chapters of a particular unit. You can check the chapters covered in the tests by clicking on the particular Part Test that you want to take.
However, if you are a RANKUP user, you can select as many topics as you want and RANKUP's Select Topics To Improve feature will generate special practice sessions for you containing:
- The most important questions on the topic(s)
- Previous year paper questions
In depth: Read more about Select Topics To Improve (STI) here.
RANKUP also recommends a list of topics that are frequently selected by all students as well as the most important topics that you need to master.