In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.

Chiral alcohols can be synthesized by performing Fleming-Tamao oxidation on a hydrosylilated version of these molecules. Grubbs' Catalyst catalyzes the Cross Metathesis, which joins two of these molecules. They can be used instead of alkyl halides in Friedel-Crafts. Both the Julia Reaction and the Schlosser Modification of the Wittig Reaction produce only the E isomer of these molecules, which are the products of both E1 and E2 reactions. For 10 points, name these aliphatic organic compounds that contain at least one carbon-carbon double bond.
Science