Information: - Diazomethane is the chemical compound CHN, discovered by German chemist Hans von Pechmann in 1894. It is the simplest diazo compound. In the pure form at room temperature, it is an extremely sensitive explosive yellow gas; thus, it is almost universally used as a solution in diethyl ether. The compound is a popular methylating agent in the laboratory, but it is too hazardous to be employed on an industrial scale without special precautions. - Ethers are a class of organic compounds that contain an ether groupan oxygen atom connected to two alkyl or aryl groups. They have the general formula ROR, where R and R represent the alkyl or aryl groups. Ethers can again be classified into two varieties: if the alkyl groups are the same on both sides of the oxygen atom, then it is a simple or symmetrical ether, whereas if they are different, the ethers are called mixed or unsymmetrical ethers. A typical example of the first group is the solvent and anesthetic diethyl ether, commonly referred to simply as "ether". Ethers are common in organic chemistry and pervasive in biochemistry, as they are common linkages in carbohydrates and lignin. - Gas is one of the four fundamental states of matter (the others being solid, liquid, and plasma). A pure gas may be made up of individual atoms (e.g. a noble gas like neon), elemental molecules made from one type of atom (e.g. oxygen), or compound molecules made from a variety of atoms (e.g. carbon dioxide). A gas mixture would contain a variety of pure gases much like the air. What distinguishes a gas from liquids and solids is the vast separation of the individual gas particles. This separation usually makes a colorless gas invisible to the human observer. The interaction of gas particles in the presence of electric and gravitational fields are considered negligible as indicated by the constant velocity vectors in the image. One type of commonly known gas is steam. - Diethyl ether or simply ether, is an organic compound in the ether class with the formula . It is a colorless, highly volatile flammable liquid. It is commonly used as a solvent in laboratories and as a starting fluid for some engines. It was formerly used as a general anesthetic, until non-flammable drugs were developed, such as halothane. It has been used as a recreational drug to cause intoxication. - Hans von Pechmann (1 April 1850 19 April 1902) was a German chemist, renowned for his discovery of diazomethane in 1894. Pechmann condensation and Pechmann pyrazole synthesis. He also first prepared 1,2-diketones (e.g., diacetyl), acetonedicarboxylic acid, methylglyoxal and diphenyltriketone; established the symmetrical structure of anthraquinone. - Trimethylsilyldiazomethane , ( CH3 ) 3SiCHN2 , is a diazo compound widely used as a less - explosive replacement for diazomethane . After reading the paragraphs above, we are interested in knowing the entity with which 'trimethylsilyldiazomethane' exhibits the relationship of 'instance of'. Find the answer from the choices below. Choices: - 1 - chemical compound - class - constant - ether - flammable liquid - formula - four - gas - human - liquid - matter - may - mixture - organic compound - scale - two - variety
chemical compound

Q: Information: - Canada (French: ) is a country in the northern half of North America. Its ten provinces and three territories extend from the Atlantic to the Pacific and northward into the Arctic Ocean, covering , making it the world's second-largest country by total area and the fourth-largest country by land area. Canada's border with the United States is the world's longest land border. The majority of the country has a cold or severely cold winter climate, but southerly areas are warm in summer. Canada is sparsely populated, the majority of its land territory being dominated by forest and tundra and the Rocky Mountains. About four-fifths of the country's population of 36 million people is urbanized and live near the southern border. Its capital is Ottawa, its largest city is Toronto; other major urban areas include Montreal, Vancouver, Calgary, Edmonton, Quebec City, Winnipeg and Hamilton. - Luxury vehicle is a marketing term for a vehicle that provides luxury pleasant or desirable features beyond strict necessity at increased expense (see luxury goods). - China, officially the People's Republic of China (PRC), is a unitary sovereign state in East Asia. With a population of over 1.381billion, it is the world's most populous country. The state is governed by the Communist Party of China, and its capital is Beijing. It exercises jurisdiction over 22 provinces, five autonomous regions, four direct-controlled municipalities (Beijing, Tianjin, Shanghai, and Chongqing), and two mostly self-governing special administrative regions (Hong Kong and Macau), and claims sovereignty over Taiwan. The country's major urban areas include Shanghai, Guangzhou, Beijing, Chongqing, Shenzhen, Tianjin and Hong Kong. China is a great power and a major regional power within Asia, and has been characterized as a potential superpower. - The Cadillac XTS is a full - size luxury sedan from Cadillac . It is based on an enlarged version of the Epsilon II platform . The XTS replaces both the Cadillac STS and DTS , and is smaller than the DTS but larger than the STS . It began production in May 2012 at the Oshawa Assembly Plant and launched in June . The XTS is available with both front - wheel drive and all - wheel drive . For the Chinese market , the Cadillac XTS is being assembled by Shanghai GM. Production began in February 2013 . In addition to the LFX 3.6 V6 , Cadillac XTS also comes with an LTG 2.0 turbo engine in the Chinese market . In the Chinese market , the Cadillac XTS with an LFX 3.6 V6 engine is called XTS 36S , and the version with LTG 2.0 turbo engine is called XTS 2.0T . This vehicle may be partially marketed in Europe , though the only LWB car based on the Epsilon II platform sold in Europe was Saab 9 - 5 which ceased production in 2012 . As of November 2015 , the Cadillac XTS Sedan is available in the United States , Canada , Mexico , China , and the Middle East ( except Israel ) in LHD only . - Cadillac , formally the Cadillac Motor Car Division, is a division of the U.S.-based General Motors (GM) that markets luxury vehicles worldwide. Its primary markets are the United States, Canada, and China, but Cadillac-branded vehicles are distributed in 34 additional markets worldwide. Historically, Cadillac automobiles have always held a place at the top of the luxury field within the United States. In 2016, Cadillac's U.S. sales were 170,006 vehicles. After reading the paragraphs above, we are interested in knowing the entity with which 'cadillac xts' exhibits the relationship of 'series'. Find the answer from the choices below. Choices: - luxury vehicle - north america - populous - the state
A: luxury vehicle