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11.3. Fuels
A subsection of Chemistry, 0620, through 11. Organic chemistry
Listing 10 of 283 questions
The structures of four organic compounds, C, D, E and F, are shown. H C H H C H H C H H H O H H C Br H C Br H H H C H H C H H C H H C H H H C H H C H H H C C D E F Answer the following questions about these compounds. Each compound may be used once, more than once or not at all. State which compound, C, D, E or F: decolourises aqueous bromine ������������������������������������������������������������������������������������� is an alcohol ������������������������������������������������������������������������������������������������������������������ is unsaturated ��������������������������������������������������������������������������������������������������������������� is in the same homologous series as ethane. �������������������������������������������������������������� Petroleum is a mixture of hydrocarbons which can be separated into fractions with different boiling points. Name the method used to separate these fractions. Complete the table to show the name and uses of some petroleum fractions. name of fraction use of fraction refinery gas gasoline waxes and polishes  Some hydrocarbons are formed by the process of cracking. State the meaning of the term cracking. Describe the conditions needed for cracking. 
0620_s22_qp_31
THEORY
2022
Paper 3, Variant 1
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The structures of four organic compounds, C, D, E and F, are shown. H H C H H C H H C H H C H H C H H H H C H H C H H C H H H C H H H C H C O O H C D E F C C H H H H State which two of the compounds, C, D, E and F, are in the same homologous series. and ��������������������������������������������������������������� State which compound, C, D, E or F, is the monomer used to make poly. State which compound, C, D, E or F, is a carboxylic acid. Petroleum is a mixture of hydrocarbons, which can be separated into fractions. Describe how petroleum is separated into fractions to include: ● the name of the process used to separate the fractions ● how this process separates the different fractions.  Complete the table to show the name and uses of some petroleum fractions. name of fraction use of fraction naphtha diesel oil (gas oil) making roads  
0620_s22_qp_32
THEORY
2022
Paper 3, Variant 2
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Questions Discovered
283