B.eco chapters suggestion?

I have a bussiness eco exam tmrw in my college and its kind of a big deal for me to pass it my college has completed the syllabus i know little bits of the chapters not full of them i need to pass the exam tmrw the college follows icai mcqs and they dont even change the variable so can anyone suggest me any chapters that ahve high weightage in exams and i have exactly 1 day (10hrs)