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: 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: This molecule facilitates the Griesbaum reaction and cleaves an alkene to forms an aldehyde or a ketone in a 1,3 dipolar cycloaddition, the Criegee mechanism. In the Chapman Cycle, this diamagnetic compound with a bent geometry is replenished by a paramagnetic, diatomic molecule. In that reaction, this molecule is formed by the absorption of a photon with a wavelength of less than 280 nanometers. It can be depleted by chlorofluorocarbons, making the Earth more susceptible to ultraviolet radiation. For 10 points, name this molecule found in a namesake atmospheric "layer", a triatomic allotrope of oxygen.

SOLUTION: Science

PROBLEM: One protagonist created by this author surprises the chairman of the Public Service Commission by suggesting that The Heart of the Matter was ruined by its happy ending, and refuses to negotiate the customs duty on his radiogram. That character created by him worries that his secretary, Marie, is spying on him for his boss, Mr. Green. In one of his novels, a woman refuses to marry the protagonist because she is an osu and then aborts the baby she had with him. Clara is the fiancee of one of his characters, who is sponsored by his town's Progressive Union and is arrested for taking bribes. That character created by him is the grandson of a man whose funeral gun salute accidentally kills Ezeudu's son, and who is commanded to kill Ikemefuna. For 10 points, name this creator of the Okonkwo family, the Nigerian author of No Longer at Ease and Things Fall Apart.

SOLUTION:
Literature