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: The person on the left side of this painting, wearing an apron and sailor trousers, is next to a kneeling man with green trousers, a black suit, and black top hat. That man's knee is on the same cobblestones as the hands of the person with a blue shirt and red bandana who is looking up. The right side of this work shows a student with a cartridge pouch carried in a sling over his shoulder and with a gun in each hand. There are also wounded bodies lying on the ground, and the central figure has a loose yellow dress and is holding up a flag. Name this work set during the July Revolution showing the tricolor flag of France, painted by Eugene Delacroix [deh-lah-kwah].

A: Fine Arts
****
Q: This reaction is combined with an aldol condensation to produce cyclohexenones in a process named for Robinson, and a variation of this uses silyl ethers and titanium tetrachloride, in a reaction named also for Mukaiyama. In a process analogous to this reaction, performed with simple ketones, the equilbrium is shifted towards the reagents, unlike in the Claisen and aldol condensations, necessitating the use of an enolate in conjugate addition to produce the 1,4-addition. For 10 points, what is this reaction named for an American chemist, which consists of the addition of a carbanion to an alpha, beta unsaturated carbonyl

A: Science
****
Q: Three objects known by this term are collectively used to represent spin operators are named after Wolfgang Pauli. Calcium is deposited in an area of bone tissue known by this term, which generally describes any part of tissue that does not contain cells and also describes a part of the mitochondrion where the Krebs Cycle occurs. In mathematics, objects denoted by this term can only be multiplied if the number of columns in the first equals the number of rows in the second. For 10 points, name these rectangular arrays of numbers.

A:
Science
****