Alkanes & Crude Oil quiz Loading... 1. What is a fuel?A fuel is a substance that, when burned, releases heat energyA fuel is a substance that is used to power vehiclesA fuel is a substance that contains chemical energyA fuel is a liquid used in electrolysisQuestion 1 of 22 Loading... 2. Do larger molecules have higher or lower boiling points than smaller molecules?Size doesn\'t affect boiling pointIt depends on which atoms are presentHigherLowerQuestion 2 of 22 Loading... 3. Why are alkanes classified as saturated hydrocarbons?They do not react easilyThey are toxic substancesThey are usually solids at room temperatureThey contain only single bondsQuestion 3 of 22 Loading... 4. Why is carbon dioxide, CO₂ harmful to the environment?It is very slightly coloured and blocks sunlight in the atmosphere if too much builds upIt competes with oxygen for uptake in plants preventing them from photosynthesisingIt is acidic and can change the pH of fresh and salt water when dissolvedIt is a greenhouse gas and may contribute to global warmingQuestion 4 of 22 Loading... 5. Recall the products of the complete combustion of alkanesCarbon dioxide and waterCarbon monoxide and waterCarbon and waterWater and oxygenQuestion 5 of 22 Loading... 6. Describe how nitrogen oxides and sulfur dioxide contribute to acid rainNitrogen oxides created in hot car engines and sulfur dioxide released when fossil fuels are burned combine with each other to form acidic solutionsNitrogen oxides created in hot car engines and sulfur dioxide released when fossil fuels are burned combine with water in the atmosphere to form acidic particlesNitrogen oxides created in hot car engines and sulfur dioxide released when fossil fuels are burned combine with water in the atmosphere to form acidic solutionsNitrogen oxides created in hot car engines and sulfur dioxide released when fossil fuels are burned combine with water in lakes and seas to form acidic solutionsQuestion 6 of 22 Loading... 7. State the names and molecular formulae of the first 5 alkanesmethane (CH₄), ethane (C₂H₆), tritane (C₃H₈), tetrane (C₄H₁₀), pentane (C₅H₁₂)methane (CH₄), ethane (C₂H₆), tritane (C₃H₈), butane (C₄H₁₀), pentane (C₅H₁₂)methane (CH₄), ethane (C₂H₆), propane (C₃H₈), quatane (C₄H₁₀), pentane (C₅H₁₂)methane (CH₄), ethane (C₂H₆), propane (C₃H₈), butane (C₄H₁₀), pentane (C₅H₁₂)Question 7 of 22 Loading... 8. Explain why carbon monoxide is dangerous to humansIt is poisonous because it poisons the bloodstreamIt is poisonous because it blocks surfaces for gas exchangeIt is poisonous because it reduces the capacity of the blood to carry oxygenIt is poisonous because it blocks blood flowQuestion 8 of 22 Loading... 9. What is meant by the term viscosity?The viscosity of a fluid is how easily it evaporates. Refinery gases evaporate easily, they have high viscositiesThe viscosity of a fluid is how easily it evaporates. Refinery gases evaporate easily, they have low viscositiesThe viscosity of a fluid describes how easily it flows. Water has a low viscosity, it flows very easily. Crude oil has a higher viscosity than water, it does not flow very easily.The viscosity of a fluid describes how easily it flows. Water has a high viscosity, it flows very easily. Crude oil has a lower viscosity than water, it does not flow very easily.Question 9 of 22 Loading... 10. What is crude oil?A mixture of alcoholsA mixture of alkanesA mixture of hydrocarbonsAn oily liquidQuestion 10 of 22 Loading... 11. Name this moleculemethylpropanemethylbutanebut-2-ene1,1 dimethylpropaneQuestion 11 of 22 Loading... 12. What is a general formula?A formula to determine the exact number of different types of atom in a molecule, e.g. C₂H₄ for etheneA formula to determine the structure of a general series, i.e it shows which isomers are part of the general series and which aren\'tA formula to show the relative quantity of different types of atom for a molecules in a homologous series. Eg CₙH₂ₙ₊₂ for alkanes A series of compounds with similar chemical properties and a trend in physical propertiesQuestion 12 of 22 Loading... 13. What is the name of this molecule?ethenemethaneethanolethaneQuestion 13 of 22 Loading... 14. 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) methylpropene. However, the student has forgotten to also draw cyclobutane.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) methylbutene.The displayed formulae are correct, and the names are: 1) but-1-ene 2) but-2-ene and 3) methylpropene.Question 14 of 22 Loading... 15. What is the name of the process in which crude oil is separated into its various components?CrystallisationFiltrationSimple distillationFractional distillationQuestion 15 of 22 Loading... 16. If a substance has a simple molecular structure, what physical state might it be at room temperature?Solid or liquidAny stateGas or liquidSolidQuestion 16 of 22 Loading... 17. How does sulfur dioxide form in car engines?When 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 formedAcid 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 formedQuestion 17 of 22 Loading... 18. Balance the equation for the reaction: ___ HCl(aq) + ___ MnO₂(s) → ___MnCl₂(aq) + ___H₂O(l) + ___ Cl₂(g)2 HCl(aq) + MnO₂(s) → MnCl₂(aq) + H₂O(l) + Cl₂(g)6 HCl(aq) + MnO₂(s) → MnCl₂(aq) + 2H₂O(l) + 2 Cl₂(g)4 HCl(aq) + 2 MnO₂(s) → 2 MnCl₂(aq) + 2H₂O(l) + Cl₂(g)4 HCl(aq) + MnO₂(s) → MnCl₂(aq) + 2H₂O(l) + Cl₂(g)Question 18 of 22 Loading... 19. Explain the term isomerismMolecules with the same molecular formula but with a different structureAtoms with the same number of protons but different numbers of neutronsSolutions with the same ratio of ions but different concentrationsCompounds with the same empirical formula but different molecular formulasQuestion 19 of 22 Loading... 20. Explain the term hydrocarbonA hydrocarbon is a molecule that is in a homologous seriesA hydrocarbon is a molecule containing only hydrogen and carbonA hydrocarbon is an organic moleculeA hydrocarbon is a molecule that comes from crude oilQuestion 20 of 22 Loading... 21. Recall a use of refinery gasesFuel for carsFuel for lorriesCookingFuel for aeroplanesQuestion 21 of 22 Loading... 22. What is produced when nitrogen reacts with oxygen?nitratesnitrogen oxidesnitrogen and waternitrifying compoundsQuestion 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