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.

One of these organic compounds is converted to an alkene by a diorganochromium compound in the Takai olefination. Compounds may be reduced to this functionality via the use of DIBAL-H (die-bahl aitch), and alkynes are formed by a reaction of these compounds with tetrabromomethane and triphenylphosphine named for Corey and Fuchs. When these organic compounds lack a hydrogen atom in the alpha position, their disproportionation can be induced by a base in the Cannizzaro reaction. These organic compounds are oxidized to carboxylic acids by a diamminesilver (I) complex, leading to the precipitation of metal onto the inside of the vessel, giving the positive "silver mirror" result of the Tollens test. For 10 points, name this special class of ketones with one R group being just hydrogen.
Science

Though he was a strongly nationalist composer, he found his own musical language in Paris after studying with Ravel for 3 months. This French influence is apparent in his first string quartet in G minor, and a song cycle for tenor, string quartet, and piano that took its title from the first of the six poems of Housmans A Shropshire Lad. Near the outbreak of World War II he adapted words from The Merchant of Venice for his Serenade to Music and also wrote Five Variants of Dives and Lazarus. His first symphony contains text by Walt Whitman and his seventh depicts impressions of life on Antarctica, while a poem by Meredith inspired his romance for violin and orchestra, The Lark Ascending. FTP, name this English composer of Fantasia on a Theme by Thomas Tallis.
Fine Arts

Preparations included the construction of the Zoan Church earthworks, and it began with the decimation of the 11th Corps under Oliver Howard. At the same time as the main action of this battle, Marye's Heights was taken from Jubal Early by John Sedgwick, but Sedgwick could not advance further than Salem Church to aid the Union effort here. This battle occurred after Lee challenged the crossing of Kelly's Ford by Hooker and resulted in Hooker pulling back across the Rappahannock. FTP, name this battle which featured the accidental death of Stonewall Jackson.

History