DP Chemistry Questionbank

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• 18M.3.sl.TZ2.10c.ii: The performance of hydrocarbons as fuels can be improved by catalytic reforming. Outline how...
• 18M.3.sl.TZ2.10c.i: Outline how higher octane fuels help eliminate “knocking” in engines.
• 18M.3.sl.TZ2.10b.ii: Identify, giving a reason, which product in (b)(i) could be used in petrol (gasoline).
• 18M.3.sl.TZ2.10b.i: Formulate an equation for the cracking of C16H34 into two products with eight carbon atoms each.
• 18M.3.sl.TZ1.10b: Petroleum contains many hydrocarbons. Explain how these are separated by fractional distillation.
• 18M.3.sl.TZ1.10a: Identify an element, other than carbon and hydrogen, found at significant concentrations in...
• 17N.3.sl.TZ0.13b: Many like to refer to our “carbon footprint”. Outline one difficulty in quantifying such a concept.
• 17N.3.sl.TZ0.13a: “Knocking” in an automobile (car) engine can be prevented by increasing the octane number of the...
• 17M.3.sl.TZ2.14c.iii: Suggest a reason why syngas may be considered a viable alternative to crude oil.
• 17M.3.sl.TZ2.14c.ii: The Fischer-Tropsch process, an indirect coal liquefaction method, converts CO(g) and H2(g) to...
• 17M.3.sl.TZ2.14c.i: Suggest an equation for the production of syngas from coal.
• 17M.3.sl.TZ1.16b: Outline how the carbon monoxide is then converted to a hydrocarbon fuel.
• 17M.3.sl.TZ1.16a: State how these gases are produced, giving the appropriate equation(s).
• 16N.3.sl.TZ0.12b: Catalytic reforming and cracking reactions are used to produce more efficient fuels. Deduce the...
• 16N.3.sl.TZ0.12a: Discuss how the octane number changes with the molecular structure of the alkanes.
• 16M.3.sl.TZ0.11c: Coal can be heated with steam to produce synthetic natural gas. Formulate an equation to show the...
• 16M.3.sl.TZ0.11a: (i) Hexane can be converted to different organic products in a reforming process. Identify one of...
• 15M.3.sl.TZ2.11a: Suggest two reasons for this shift.
• 14M.3.sl.TZ1.8a: Suggest why crude oil needs to be refined before it can be used.
• 14M.3.sl.TZ1.8c: Thermal cracking, catalytic cracking and steam cracking can all be used to convert molecules of...
• 13M.3.sl.TZ1.C2a: The following reaction occurs during the cracking of tetradecane,...
• 13M.3.sl.TZ1.C2b: State the main type of product obtained from steam cracking.
• 12N.3.sl.TZ0.C2: the oil industry surplus long-chain hydrocarbons are converted into shorter, more useful...
• 10N.3.sl.TZ0.C2: Thermal cracking, catalytic cracking and steam cracking are all used to convert alkane molecules...
• 10N.3.sl.TZ0.C1: “Oil should not be used as a source of energy because it has more important uses.” Suggest...
• 11M.3.sl.TZ1.C2a: The initial products of the fractional distillation of oil often undergo cracking. This can be...
• 11M.3.sl.TZ2.C2d.i: Identify the catalyst used in the catalytic cracking of long chain hydrocarbons and state one...
• 11M.3.sl.TZ2.C2d.ii: State an equation for the catalytic cracking of the straight chain hydrocarbon pentadecane,...
• 12M.3.sl.TZ1.C3b: Describe one environmental problem that can result from the combustion of these fuels in the...
• 12M.3.sl.TZ1.C3a: Name two fuels that are obtained from petroleum.
• 12M.3.sl.TZ1.E1b: Suggest why carbon dioxide is the greenhouse gas most frequently connected with the effect of...