While I applaud you on doing the research to, and I am making an assumption here, find out if Chemical Engineering would be a suitable field of endeavor for your further study, I would recommend working on your English language skills first. That only applies if you plan to study in English. If you are going to be studying in your native language, please disregard.
As for the "Scope" of Chemical Engineering, you could pick that up from any University website, so pick a good university. That will get you a list of the required and optional courses that you will need to take in order to become a Chemical Engineer.
That action should give you a basic idea on what chemical engineering covers, and allow you to ask more specific questions.
If you just want a stock definition then CLICKY HEREY
scope
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