Q: I want to test the ability of students to read a passage and answer questions about it. Could you please come up with a good question for the passage "There are many important organozinc compounds. Organozinc chemistry is the science of organozinc compounds describing their physical properties, synthesis and reactions. Among important applications is the Frankland-Duppa Reaction in which an oxalate ester(ROCOCOOR) reacts with an alkyl halide R'X, zinc and hydrochloric acid to the -hydroxycarboxylic esters RR'COHCOOR, the Reformatskii reaction which converts -halo-esters and aldehydes to -hydroxy-esters, the SimmonsSmith reaction in which the carbenoid (iodomethyl)zinc iodide reacts with alkene(or alkyne) and converts them to cyclopropane, the Addition reaction of organozinc compounds to carbonyl compounds. The Barbier reaction (1899) is the zinc equivalent of the magnesium Grignard reaction and is better of the two. In presence of just about any water the formation of the organomagnesium halide will fail, whereas the Barbier reaction can even take place in water. On the downside organozincs are much less nucleophilic than Grignards, are expensive and difficult to handle. Commercially available diorganozinc compounds are dimethylzinc, diethylzinc and diphenylzinc. In one study the active organozinc compound is obtained from much cheaper organobromine precursors:"?
A: What should I try my best to avoid if I want to facilitate organomagnesium halide?

Q: I want to test the ability of students to read a passage and answer questions about it. Could you please come up with a good question for the passage "Artists contributing to this format include mainly soft rock/pop singers such as, Andy Williams, Johnny Mathis, Nana Mouskouri, Celine Dion, Julio Iglesias, Frank Sinatra, Barry Manilow, Engelbert Humperdinck, and Marc Anthony."?
A: what name came third?

Q: I want to test the ability of students to read a passage and answer questions about it. Could you please come up with a good question for the passage "Barca beat Athletic Bilbao 41 in the 2009 Copa del Rey Final, winning the competition for a record-breaking 25th time. A historic 26 victory against Real Madrid followed three days later and ensured that Barcelona became La Liga champions for the 200809 season. Barca finished the season by beating the previous year's Champions League winners Manchester United 20 at the Stadio Olimpico in Rome to win their third Champions League title and completed the first ever treble won by a Spanish team. The team went on to win the 2009 Supercopa de Espana against Athletic Bilbao and the 2009 UEFA Super Cup against Shakhtar Donetsk, becoming the first European club to win both domestic and European Super Cups following a treble. In December 2009, Barcelona won the 2009 FIFA Club World Cup, and became the first football club ever to accomplish the sextuple. Barcelona accomplished two new records in Spanish football in 2010 as they retained the La Liga trophy with 99 points and won the Spanish Super Cup trophy for a ninth time."?
A: Who participated in the Copa del Rey Final?

Q: I want to test the ability of students to read a passage and answer questions about it. Could you please come up with a good question for the passage "The terms 'federalism' and 'confederalism' both have a root in the Latin word foedus, meaning treaty, pact or covenant. Their common meaning until the late eighteenth century was a simple league or inter-governmental relationship among sovereign states based upon a treaty. They were therefore initially synonyms. It was in this sense that James Madison in Federalist 39 had referred to the new United States as 'neither a national nor a federal Constitution, but a composition of both' (ie. neither a single large unitary state nor a league/confederation among several small states, but a hybrid of the two). In the course of the nineteenth century the meaning of federalism would come to shift, strengthening to refer uniquely to the novel compound political form, while the meaning of confederalism would remain at a league of states. Thus, this article relates to the modern usage of the word 'federalism'."?
A:
What is a synonym of treaty?