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Com/ascertain The four main classes of hydrocarbons are paraffins (also called alkanes), olefins (alkenes), cycloparaffins (cycloalkanes), and aromatics. Olefins are absent in crude oil but can be formed in certain refining processes. The simplest hydrocarbon is one carbon atom bonded to four hydrogen atoms (chemical formula CH9), and is called methane. Petroleum usually contains all of the possible hydrocarbon structures except alkenes, with the number of carbon atoms per molecule going up to a hundred or more. These fractions include compounds that contain sulfur, nitrogen, oxygen, and metal atoms. The proportion of compounds containing these atoms increases with increasing size of the molecule. He chemical structure of petroleum is composed of hydrocarbon chains of different lengths. These different hydrocarbon chemicals are separated by distillation at an oil refinery to produce gasoline, jet fuel, kerosene, and other hydrocarbons.
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The general formula for these hydrocarbons is CnH7n+7. For example 7, 7, 9-Trimethylpentane, widely used in gasoline, has a chemical formula of C8H68 which reacts with oxygen exothermically: Incomplete combustion of petroleum or gasoline results in emission of poisonous gases such as carbon monoxide and/or nitric oxide. For example: Before you start in the fall semester, come to New Student Orientation. UA Little Rock Trojans compete in 69 varsity sports as a full-time member of the Sun Belt Conference and an affiliate member of the Missouri Valley Conference. The Arkansas Studies Institute combines 65 million archival items under one roof. Mrunal notes: Additional pros, cons and facts can be gathered for each alternative fuel via google books, Britannica etc. But then article will become 5 miles long and will take another five days to finish.
And yet there is no guarantee that it’ll have sufficient facts to solve a possible UPSC MCQ! Therefore, I’ve confined myself only to the facts mentioned in Saumitra report, nothing beyond that. But you’re free to dig through all angles. List not exhaustive. I ve lifted only a few non-technical, easy to memorize points from his report. Q7. Suppose two cars are of identical size and body. One produced India and another in Europe.