To get full access to all questions @prexam.com on your mobile phone, use the PREXAM app. With this app you can : 1) Practice questions one by one 2) Bookmark important questions for revision 3) Chapter-wise time-based tests 4) Mock Test 5) Error Correction Tests. These are time-based tests with negative marking as in actual exams You can view your performance report and preparation analysis generated by our intelligent algorithms that will help you understand where you can improve The ex