Teacher: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.
Teacher: Now, understand the problem? Solve this instance: In 2007, Jain et al. reported a new class of organic magnets incorporating this element complexed to DDQ, TCNE, and TCNQ, and this metal works with SIPr to catalyze the cycloaddition of diynes to produce pyridines, isocyanates, and esters. One hypothesis for the Oxygen Catastrophe 2. 4 billion years ago was a famine named for this element, since it appears in as the key cofactor for methane production in methanogens, and it also appears in the active site of the human enzyme urease. Often complexed to cyclooctadiene, or cod, this element can be purified by reaction with Syngas and carbon monoxide to generate the namesake tetracarbonyl, sometimes known as liquid death, in the Mond process. For 10 points, name this element, the primary component of Raney catalysts, which appears to the right of cobalt on the periodic table, with symbol Ni.
Student:
Science