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.

LDA is used to transform propargyl diol into one of these compounds in the Whiting reaction. A  useful one of these compounds is synthesized using zinc chloride to combine trimethylsilyl chloride  with methoxybutenone. The namesake value of these compounds is expressed as the mass of iodine  equivalent to the amount of (*) maleic anhydride reacting with a unit mass of one of these. The  cumulated type of these compounds are less stable than other types. Electrophilic addition can result in  both 1,2 and 1,4 additions in the conjugated type of these molecules. That type also undergoes a type of  reaction that follows the endo addition rule and forms cyclohexenes, the Diels-Alder reaction. For 10  points, name these hydrocarbons that contain two carbon-carbon double bonds.
Science

One work by this composer is considered one of the most technically demanding of its kind and has a notable second movement with quick glissandi, but ends in its fourth with an unusual use of the rare Locrian mode. This mans other compositions include an E-minor work dedicated to Rostropovich, and a suite that contains a movement entitled The Glorious Departure of Lolli and the Cortge of the Sun. Besides his Symphony-Concerto and Scythian Suite, he also composed a piece commissioned by Paul Wittgenstein, as well as a ballet containing the movement Dance of the Knights, and a suite with a bell-filled Troika movement. He imitated Haydn in his Classical Symphony. For 10 points, name this Russian composer of The Love for Three Oranges and the Lieutenant Kije suite.
Fine Arts

At Magdala on Good Friday in 1868, Robert Napier crushed the forces of this entity, whose ruler then committed suicide. Kassai replaced Abuna Salama, the head of the Orthodox Church in this country before becoming emperor, while the Battle of Wofla was fought near the end of its war with the Adal Sultanate. Mengistu became head of state after the Derg deposed the then-ruler; that ruler had led this nation in its second war with Italy, the first of which ended with a victory at Adowa. FTP, name this African nation whose leaders have included Menelik II and Haile Selassie and has its capital at Addis Ababa.

History