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: Melamine resin is formed by dehydration of this compound, while barbiturates can also be formed by addition of this compound to malonic acid. Other uses of this compound include separation of racemic mixtures. Originally produced by a reaction between silver cyanate with ammonium chloride, it is now made in indusrial quantities by heating carbon dioxide with ammonia. When arginine is split, it forms an ornithine molecule and a molecule of this; the principal end product of mammalian nitrogen metabolism. First isolated by H.M. Rouelle, FTP, name the compound used to disprove the theory of vitalism when, in 1828 Friedrich Wohler, first synthesized it from inorganic materials.

A: Science
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Q: An 1889 strike of dockworkers in this city was settled at Millwall and mediated by Edward Manning. A wildly popular account of this city's underbelly was published by Ned Ward, who also described how the Mohawks and Hawkubites terrorized the women of this city. Joseph Bazalgette was largely responsible for redesigning this metropolitan area's sewer system after the Great Stink occurred. The police force of this city received the "Dear Boss" and "From Hell" letters, which enigmatically predicted a grisly set of crimes. Henry Cole organized an event in this city that displayed "the works of industry of all nations" in its Joseph Paxtondesigned structure. Its Whitechapel district was home to a series of unsolved murders. For 10 points, the Great Exhibition of 1851 took place in what city, which was also home to the Jack The Ripper killings

A: History
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Q: In this opera, two servants are given medicine that makes one of them sneeze continuously and makes the other yawn nonstop. One character boasts that "Everyone asks for me, everyone wants me," before telling himself "You'll never lack for luck" in an aria from this opera. In this opera, a character disguises himself as the student Lindoro to try and marry his love, which he ultimately does after bribing Don Basilio the music teacher. The title character of this opera sings the aria "Largo al factotum," and later appears in a Mozart opera. For 10 points, name this opera composed by Gioachino Rossini, whose title character Figaro helps Count Almaviva win Rosina.

A:
Fine Arts
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