Part V Fossil Fuels and Carbon Compounds

Which of the following statements about fossil fuels must be correct?

• A. They are liquids.

• B. They are black in colour.

• C. They contain hydrocarbons.

• D. They are renewable resources.

Which of the following combinations is correct?

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What is the maximum number of organic products that can be obtained when ethane reacts with excess bromine (dissolved in an organic solvent) under sunlight?

• A. 6

• B. 7

• C. 8

• D. 9

Which of the following compounds is the first member of a homologous series?

• A. Ethane

• B. Ethene

• C. Ethanol

• D. Ethanoic acid

Which of the following is the product of the reaction between but-1-ene and acidified potassium permanganate solution?

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Which of the following is the systematic name of the compound shown?

• A. 1-methylbutan-1-ol

• B. 2-methylbutan-2-ol

• C. 1,1-dimethylpropan-1-ol

• D. 2,2-dimethylpropan-2-ol

The relative molecular mass of an alkane is 72.0. How many possible structures does it have?

(Relative atomic masses: H = 1.0, C = 12.0)

• A. 2

• B. 3

• C. 4

• D. 5

The flow diagram shows the process of the production of polyethene from petroleum.

Which of the following combinations is correct?

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The polymer shown in the diagram is made by the polymerization of two different monomers.

(m and n represent the numbers of the two repeating units respectively in the polymer.)

Which of the following molecules are the monomers of this polymer?

• A. Ethane and propane

• B. Ethene and propene

• C. Ethene and but-1-ene

• D. Ethene and but-2-ene

Which of the following processes does NOT involve a chemical change?

• A. Cracking of octane

• B. Removal of sulphur dioxide by flue gas desulphurization system

• C. Removal of suspended particulates by using electrostatic precipitators

• D. Polymerization of propene