Blueprint MCAT Formerly Next Step
Return to Blog Homepage

MCAT Organic Chemistry Question — Molecules

All of the following molecules are identical EXCEPT:

molecules

Click for Explanation

This question asks the examinee to determine the molecule that has a relative configuration different than the others. The best method to answer this question is to determine the absolute configuration of each molecule. Choices A, C, and D have an absolute configuration of S, while choice B has an absolute configuration of R. Thus, the molecules shown in A, C, and D are identical while the molecule shown in B is the enantiomer. Choice B is the correct answer.

Want more MCAT practice?

We’ve got options for every schedule and learning style!

From the best online MCAT course created by top instructors with 524+ MCAT scores to the most representative full-length practice exams and private tutoring, we can custom tailor your MCAT prep to your goals!

Not sure which option is right for you? Schedule a free MCAT consultation with an MCAT expert using the form below. No obligation, just expert advice.

Submit a Comment

Submit a Comment

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.