Plenty of Chemsitry, Chemical Engineering, Bio, and Environmental Engineering majors start with Chem 101 so no need to worry if that happens. Also, if you want to get ahead after taking the first year Chem sequence and you have a way to pay for it, you can take Organic Chem over the summer after freshman year.
The test is multiple choice (lucky you), and has a time limit. I forget how many questions there are.