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1.下列说法正确的是()。A.煤的主要组成为苯以及苯的同系物B.“可燃冰”为水可能变成油提供了有力的证据C.油脂、淀粉、纤维素、蛋白质都是高分子化合物D.石油的裂解是使石油分馏产物中的长链烃断裂成乙烯、丙烯等气态短链烃2.油脂是重要的工业原料,关于“油脂”的叙述错误的是()。A.不能用植物油萃取溴水中的溴B.皂化是高分子生成小分子的过程C.和H2加成后能提高其熔点及稳定性D.水解可得到丙三醇3.下列说法不正确的是()。A.甲苯和环己烯都能使酸性高锰酸钾溶液褪色
The following is correct (). A. The major components of coal are the benzene and its benzene homologues B. “Combustible ice” provides strong evidence that water may turn into oil C. Oil, starch, cellulose, and protein are all polymers D. Oil Cracking is the long-chain hydrocarbons in the petroleum fractionation products broken into short-chain hydrocarbons such as ethylene, propylene and other gaseous short chain 2. Grease is an important industrial raw materials, on the “fat” narrative error is (). A. Can not extract bromine with vegetable oil bromine B. Saponification process of polymer formation of small molecules C. Addition of H2 and can increase its melting point and stability D. Hydrolysis can be glycerol 3. The following statement is not correct Yes(). A. Toluene and cyclohexene can make acidic potassium permanganate solution fade