Hello.

As you know MCA Is a course in computer application and as you have a bachelor's degree in chemistry you might not be considered for it. However there are some institutes that prefer candidates who had mathematics as a subject in their undergraduate courses for MCA. So if you had that then there is a probability. Or you could pursue a career in chemistry which has alot of scope. For more information about the scope and future you can have in chemistry follow the link given below:-

https://www.careers360.com/courses/chemistry-course