Alkanes & Crude Oil quiz Loading... 1. Explain why carbon dioxide gas, CO₂, is a gas at room temperatureCarbon dioxide has a simple molecular structure with strong intermolecular forces that require a lot of energy to overcomeCarbon dioxide has a giant covalent structure with many strong covalent bonds which require a lot of energy to overcomeCarbon dioxide has a giant covalent structure with many weak covalent bonds which require little energy to overcomeCarbon dioxide has a simple molecular structure with weak intermolecular forces that require little energy to overcomeQuestion 1 of 22 Loading... 2. Explain the term hydrocarbonA hydrocarbon is a molecule that comes from crude oilA hydrocarbon is a molecule that is in a homologous seriesA hydrocarbon is an organic moleculeA hydrocarbon is a molecule containing only hydrogen and carbonQuestion 2 of 22 Loading... 3. Do larger molecules have higher or lower boiling points than smaller molecules?HigherIt depends on which atoms are presentLowerSize doesn\'t affect boiling pointQuestion 3 of 22 Loading... 4. What is the name of the process in which crude oil is separated into its various components?Fractional distillationCrystallisationFiltrationSimple distillationQuestion 4 of 22 Loading... 5. In car engines, sparks cause the formation of some gases which contribute to acid rain. What are these gases?Oxides of nitrogencarbon monoxideoxides of sulfurrefinery gasesQuestion 5 of 22 Loading... 6. A pupil has tried to write down various ways of representing ethane using: molecular formula, displayed formula, general formula, empirical formula and stuctural formula. However she has missed one out. Which one?empirical formulastructural formulamolecular formulageneral formulaQuestion 6 of 22 Loading... 7. How does sulfur dioxide form in car engines?Acid rain causes some sulfur impurities to get into the car engine, and when the petrol combusts some sulfur dioxide is formedPetrol includes the impurity sulfur, and when the petrol combusts some sulfur dioxide is formedWhen the petrol combusts the sulfur dioxide impurities are left behindThe metals the car is made from contain some impurities of sulfur and when the engine heats up, some sulfur dioxide is formedQuestion 7 of 22 Loading... 8. Recall a use for each of the 6 fractions obtained from the fractional distillation of crude oilrefinery gases=cooking; gasoline=fuel for planes; kerosene=fuel for cars; diesel=fuel for lorries; fuel oil=fuel for ships; bitumen=surfacing roadsrefinery gases=fuel for cars; gasoline=fuel for planes; kerosene=cooking; diesel=fuel for lorries; fuel oil=fuel for ships; bitumen=surfacing roadsrefinery gases=cooking; gasoline=fuel for cars; kerosene=fuel for planes; diesel=fuel for ships; fuel oil=fuel for lorries; bitumen=surfacing roadsrefinery gases=cooking; gasoline=fuel for cars; kerosene=fuel for planes; diesel=fuel for lorries; fuel oil=fuel for ships; bitumen=surfacing roadsQuestion 8 of 22 Loading... 9. In the fractional distillation of crude oil, how does viscosity change as the chains get longer?IncreasesDecreasesViscosity is independent of chain lengthRemains constantQuestion 9 of 22 Loading... 10. Balance the following equation: WO₃ + H₂ → W + H₂O WO₃ + 3H₂ → W + 3H₂O WO₃ + 6H₂ → W + 3H₂O WO₃ + 3H₂ → W + 6H₂O 2WO₃ + 3H₂ → 2W + 6H₂OQuestion 10 of 22 Loading... 11. What is a fuel?A fuel is a substance that contains chemical energyA fuel is a substance that, when burned, releases heat energyA fuel is a liquid used in electrolysisA fuel is a substance that is used to power vehiclesQuestion 11 of 22 Loading... 12. Name this molecule2-methylhexanehex-2-ene1,1 dimethylpentaneheptaneQuestion 12 of 22 Loading... 13. State the general formula of alkanesCₙHₙ₊₁CₙH₂ₙC₂ₙH₂ₙ₊₂ CₙH₂ₙ₊₂ Question 13 of 22 Loading... 14. What is crude oil?A mixture of hydrocarbonsA mixture of alcoholsAn oily liquidA mixture of alkanesQuestion 14 of 22 Loading... 15. Write a chemical equation for the complete combustion of propaneC₃H₈ + 10O₂ → 3CO₂ + 8H₂OC₃H₈ + 10O₂ → 3CO₂ + 4H₂OC₃H₈ + 5O₂ → 3CO₂ + 8H₂OC₃H₈ + 5O₂ → 3CO₂ + 4H₂OQuestion 15 of 22 Loading... 16. Name the greenhouse gas released from burning hydrocabonssootwater vapourmethanecarbon dioxideQuestion 16 of 22 Loading... 17. Explain the term homologous seriesA homologous series is a family of compounds with 1) a trend in general formula 2) similar chemical properties 3) the same physical propertiesA homologous series is a family of compounds with 1) a trend in general formula 2) trends in their chemical properties 3) similar physical propertiesA homologous series is a family of compounds with 1) the same general formula 2) trends in their chemical properties 3) similar physical propertiesA homologous series is a family of compounds with 1) the same general formula 2) similar chemical properties 3) trends in their physical propertiesQuestion 17 of 22 Loading... 18. Explain the term saturatedA molecule that is poisonousA molecule containing only single bondsA molecule that will not react with anythingA molecule that is usually a solid at room temperatureQuestion 18 of 22 Loading... 19. Write the chemical equation for sulfur dioxide dissolving in water to form acid rainSO₂ + H₂O → H₂SO₃SO₂ + H₂O → H₂SO + H₂O₂ 2SO₂ + 2H₂O → 2H₂SO₂ + O₂ SO₂ + 2H₂O → H₂SO₄ + H₂Question 19 of 22 Loading... 20. What is the molecular formula for hexane?C₄H₈C₆H₁₀C₆H₁₂C₆H₁₄Question 20 of 22 Loading... 21. A student has been asked to draw all the alkene isomers of C₄H₈ and draws the following. Which of the following statements about the student's diagram is correct?The displayed formulae are correct, and the names are: 1) but-1-ene 2) but-2-ene and 3) methylbutene.The student is wrong because the molecules labelled 1 and 2 are the same molecule, so not different isomersThe displayed formulae are correct, and the names are: 1) but-1-ene 2) but-2-ene and 3) methylpropene.The displayed formulae are correct, and the names are: 1) but-1-ene 2) but-2-ene and 3) methylpropene. However, the student has forgotten to also draw cyclobutane.Question 21 of 22 Loading... 22. Why does incomplete combustion occur?When there is an insufficient supply of waterWhen there is reduced fuel avaliableWhen the fuel is wetWhen there is an insufficient supply of oxygen for complete combustionQuestion 22 of 22 Loading... Related Posts:The entire quiz question bank!The entire quiz question bank (Double only)!Key Calculations quizEquilibria (triple) quizCondensation Polymers quizElectrolysis quiz Hydr0Gen2020-02-16T16:34:17+00:00Categories: Uncategorized|Tags: Quiz, Topic: Alkanes & Crude Oil| Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInTumblrPinterestVkEmail