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.
Q: A proposed mechanism for this reaction involves radical anions and zinc carbenoid intermediates, and pinacols are often produced as side products. An amalgamated mercury is present, with the mercury acting only as a clean surface for the reaction, while the metal it binds with functions as the reductant in a hydroxyl solution of HCl or another mineral acid. Commonly used after a Friedel-Crafts acylation to produce an alkyl final product, this acidic counterpart to the strongly basic Wolf-Kishner reduction uses amalgamated zinc. FTP name this reaction named after a Danish-American chemist, which is the reduction of a carbonyl group of a ketone to a methylene group.
A:
Science