Definition: 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.
Input: These functionalities can be quantitatively detected using Ellman's reagent, and they are produced from aromatic compounds containing para amino and chloro groups by the Herz reaction. They can also be produced by acid hydrolysis of Bunte salts. Like their oxidation products, they produce hydrocarbons in the presence of Raney nickel with no additional hydrogen gas. Like their oxygen-containing counterparts, they can react via a mechanism similar to Williamson synthesis, though they were earlier known for their ability to complex with a mercury atom instead of the hydrogen atom. For 10 points, name these compounds that are oxidized to disulfides, the sulfur-containing analog of alcohols.
Output:
Science