Crude Oil

Crude Oil Quiz

Spec 3.10.1.1 · Oxford AQA IGCSE Chemistry: Quiz

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5 questions, one answer each

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  1. 1. What are most of the compounds in crude oil?

    • A. Metals
    • B. Hydrocarbons
    • C. Salts
    • D. Acids

  2. 2. What process is used to separate crude oil into fractions?

    • A. Filtration
    • B. Fractional distillation
    • C. Chromatography
    • D. Electrolysis

  3. 3. What is the general formula for alkanes?

    • A. CnH2n
    • B. CnH2n+2
    • C. CnH2n-2
    • D. CnHn

  4. 4. As hydrocarbon chain length increases, what happens to viscosity and flammability?

    • A. Both increase
    • B. Viscosity increases, flammability decreases
    • C. Viscosity decreases, flammability increases
    • D. Both decrease

  5. 5. In a fractionating column, fraction X condenses near the top while fraction Y condenses near the bottom. Which statement is correct?

    • A. Fraction X has a higher boiling point and longer chains than Y
    • B. Fraction X has a lower boiling point and shorter chains than Y
    • C. Fraction X and Y have identical boiling points
    • D. Fraction Y is more flammable than X

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