TASK 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.
PROBLEM: Halogen addition to them creates a mixture of a 1-2 and 1-4 addition product. One preparation of them involves butane undergoing thermal dehydration. Another synthesis of the conjugated variety of this chemical group involves elimination of unsaturated alcohols and alkyl halides. They include a number of useful reagents, including ones named for Chan, Dane, Brassard, Rawal, and Danishefsky. In addition to the conjugated variety, they also occur in isolated and cumulated varieties. Conjugation energy guarantees that the conjugated form is the most stable. For ten points, what is this organic functional group whose 1,3 variety are a principal reactant in the Diels-Alder reaction, and which is characterized by a pair of double bonds.

SOLUTION: Science

PROBLEM: In the aria Mal reggendo, one character in this opera relates how a strange voice stopped his hand from killing his opponent in a duel in Act 1. The arias Di due figli and Abbietta zingara are used by one character to narrate a ghost story to a gathering which is dispersed by the ringing of a bell. In Prima che d'altri vivere, the protagonist bids farewell to his lover after she poisons herself. After the first act in which Ferrando conjures the image of a baby burnt alive on a pyre, Chi del gitano i giorni abbella, or the Anvil Chorus, is sung by a group of gypsies. After the death of Leonora, the mother of Azucena is avenged when Count di Luna orders the execution of the title character Manrico. FTP, name this opera by Giuseppe Verdi.

SOLUTION: Fine Arts

PROBLEM: At a party in the second act of this opera, a group of characters claim to be able to "read the future in anyone's hand" in "Noi siamo zingarelle," which is followed by a performance by matadors from Madrid. One character in this opera asks his son who has erased "the sea and soil of Provence" from his heart. Two characters in this opera sing the duet "Un di, felice, eterea," after which one gives the other a flower and tells him to return when it wilts. After the latter character leaves, the former sings the cabaletta (*) "Sempre libera." Dumas fils's La Dame aux Camellias served as the basis for Francesco Maria Piave's libretto for this opera. After Baron Douphol refuses to give a toast, this opera's protagonist sings the brindisi "Libiamo ne' lieti calici" with her other love interest Alfredo. For 10 points, name this Giuseppe Verdi opera centering on the courtesan Violetta Valery, the title "fallen woman."

SOLUTION:
Fine Arts