Science

Since it is a central university, you need to appear for CUCET entrance exam, to pursue M.Sc. in Chemistry. For detailed information about this exam, please click this link https://www.shiksha.com/science/cucet-exam

The dates vary college to college. Hence, it will be nice if you can specify your aspired college.

There are 3 main tips to crack any university's entrance exam. Plan, Prepare and Perform. You should follow proper time table. Be confident that you are aware of the syllabus. Start your preparation in well advance. You need to revise regularly. Work on basic concepts and improve your skills. If you plan, prepare and perform well, you will definitely crack the exam.
All the best.

You can check on google or YouTube. I have one, to share with you- https://drive.google.com/file/d/0B3YS7Wi8gJPaTndaeE1wX0lTYW8/view?usp=drivesdk.

CUCET is a national level examination that is a combined entrance test organized to give admissions for different UG, PG and other courses that are offered by a Central University. This exam is that you need to register and then appear for.
At Central University Of Rajasthan (CURAJ), you will fill a normal admission form once you are selected for admission, after clearing the above mentioned exam.

You can contact on the numbers provided in the link: http://www.curaj.ac.in/contacts

Hi, Please refer to the link below:
https://www.shiksha.com/university/university-of-Delhi-north-campus/duet-exam.

Hi, TUET 2019 schedule has not been announced yet. https://www.shiksha.com/university/tripura-university/tuet-exam-dates.