I just took AAMC 10 and there was a passage about hoffman vs zaitsev elimination (Passage VII, 138). I was sure I'd seen it before but couldn't find it in any previous tests. It turns out my organic book, which has some practice mcat passages in the back had used the same passage. But my book used a different answer. The passage shows an experiment where different leaving groups are used to compare formation of 1-hexene, (E)-2-hexene and (Z)-2-hexene. The table shows that the poorer the leaving group, the more likely E-2-hexene is. The AAMC answer is A) The poorer the leaving group, the higher the proportion of Hoffman Orientation. My book's answer is C) The nature of the leaving group has little effect on the orientation. I think my book chose C because orientation refers to stereochemistry, not which alkene is formed. Thus, the AAMC's answer would be an inappropriate use of the term. Anyone who took AAMC 10 want to weigh in on this?