Alkenes & Polymers quiz Loading... 1. What is an addition reaction?A reaction where an atom or group of atoms is added to a molecule without taking anything awayA reaction where an atoms of a group of atoms is removed from a moleculeA reaction where a double bond breaks to form a long chain of moleculesA reaction where an atom or group of atoms is replaced by a different atom or group of atomsQuestion 1 of 29 Loading... 2. What is the problem with burning addition polymers to dispose of them?They explode when burntThey are non-biodegradableThey produce toxic gases when burned.They are not flammableQuestion 2 of 29 Loading... 3. What is used to test if something is an alkane or and alkene?Benedict\'s reagentBromine waterStarchSilver nitrateQuestion 3 of 29 Loading... 4. Explain why cracking is an important process in the oil industryCracking converts long chain hydrocarbons into short chain hydrocarbons. Crude oil contains a surplus long chains. Shorter chain hydrocarbons are in less demand, e.g. petrol. Cracking also produces alkenes which are used in making polymers and ethanol.Cracking converts long chain hydrocarbons into short chain hydrocarbons. Crude oil contains a surplus short chains. Shorter chain hydrocarbons are in less demand, e.g. petrol. Cracking also produces alkenes which are used in making polymers and ethanol.Cracking converts long chain hydrocarbons into short chain hydrocarbons. Crude oil contains a surplus long chains. Shorter chain hydrocarbons are in greater demand, e.g. petrol. Cracking also produces alkenes which are used in making polymers and ethanol.Cracking converts long chain hydrocarbons into short chain hydrocarbons. Crude oil contains a surplus short chains. Shorter chain hydrocarbons are in greater demand, e.g. petrol. Cracking also produces alkenes which are used in making polymers and ethanol.Question 4 of 29 Loading... 5. Recall the products of the complete combustion of alkanesWater and oxygenCarbon monoxide and waterCarbon and waterCarbon dioxide and waterQuestion 5 of 29 Loading... 6. State the general formula for alkenesCₙH₂ₙ₊₂ CₙHₙ₊₁CₙHₙCₙH₂ₙQuestion 6 of 29 Loading... 7. Describe, in terms of structure and bonding, what happens when ethene molecules are converted into poly(ethene)One bond in the double bond breaks. Monomers join together to form a long chain. Polymer contains only single bondsOne bond in the double bond breaks. Monomers join together to form a short chain. Polymer contains both double and single bondsBoth bonds in the double bond break. Monomers join together to form a long chain. Polymer contains only single bondsBoth bonds in the double bond break. Monomers join together to form a long chain. Polymer contains double and single bondsQuestion 7 of 29 Loading... 8. What does the following diagram represent?polybut-1-enebut-1-enebut-2-enepolybut-2-eneQuestion 8 of 29 Loading... 9. This diagram shows one repeat unit of a polymer. Name the monomer used to make this polymer.polychloroethenechloroethanepolytetrachloroethenechloroetheneQuestion 9 of 29 Loading... 10. Of which homologous series is >C=C< (a carbon-to-carbon double bond) the functional group?AlkenesAlcoholsHydrocarbonsAlkanesQuestion 10 of 29 Loading... 11. What are isomers?Atoms with the same number of protons but different numbers of neutronsCompounds with the same empirical formula but different molecular formulasSolutions with the same ratio of ions but different concentrationsMolecules with the same molecular formula but with a different structureQuestion 11 of 29 Loading... 12. What is the name of the process in which crude oil is separated into its various components?FiltrationFractional distillationSimple distillationCrystallisationQuestion 12 of 29 Loading... 13. What is crude oil?A mixture of hydrocarbonsA mixture of alkanesA mixture of alcoholsAn oily liquidQuestion 13 of 29 Loading... 14. State the general formula of alkanesCₙH₂ₙCₙH₂ₙ₊₂ CₙHₙ₊₁C₂ₙH₂ₙ₊₂ Question 14 of 29 Loading... 15. Name this moleculebutanepolybut-1-ene2-methylpropenebut-2-eneQuestion 15 of 29 Loading... 16. What is the name given to the type of reaction that occurs when ethane reacts with bromine under UV lightDecompositionAdditionSynthesisSubstitutionQuestion 16 of 29 Loading... 17. Why are alkenes classified as unsaturated hydrocarbons?They contain only hydrogen and carbonThey contain only single bondsThey contain multiple double or triple bondsThey contain a double or triple bondQuestion 17 of 29 Loading... 18. What is a substance called if it, when burned, releases heat energy?An electrolyteA coalA fossil fuelA fuelQuestion 18 of 29 Loading... 19. What is the molecular formula for pentane?C₅H₁₀C₅H₁₂C₃H₈C₂H₆Question 19 of 29 Loading... 20. Explain the term saturatedA molecule that is poisonousA molecule that will not react with anythingA molecule that is usually a solid at room temperatureA molecule containing only single bondsQuestion 20 of 29 Loading... 21. Recall the names of the main fractions obtained from crude oil, in order of lowest boiling point firstRefinery gases, gasoline, diesel, kerosene, fuel oil and bitumenRefinery gases, gasoline, naptha, diesel, fuel oil and bitumenRefinery gases, gasoline, kerosene, diesel, fuel oil and bitumenRefinery gases, gasoline, diesel, naptha, fuel oil and bitumenQuestion 21 of 29 Loading... 22. What is the name of this molecule?but-2-enepent-2-eneprop-1-enebut-1-eneQuestion 22 of 29 Loading... 23. When bromine is added, what happens to an alkene?The sample turns from orange to colourless.Nothing (the sample remains orange)The sample turns from brown to orange.The sample turns from colourless to orange.Question 23 of 29 Loading... 24. A student names this molecule 2-ethylpentane. Which of these statements is true about the student's naming of the molecule?The student is wrong. The correct name is 3-methylhexane.The student is correct and deserves a tuck-shop voucher.The student is wrong. The correct name is 4-methylhexane.The student is wrong. The correct name is 1-methyl-1-ethylbutane.Question 24 of 29 Loading... 25. 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 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.The 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 is how easily it evaporates. Refinery gases evaporate easily, they have low viscositiesQuestion 25 of 29 Loading... 26. Write a chemical equation for the cracking of decaneC₁₀H₂₀ → C₂H₄ + C₈H₁₈C₁₀H₂₀ → C₂H₄ + C₈H₁₆C₁₀H₂₂ → C₂H₄ + C₈H₁₈C₁₀H₂₂ → C₂H₄ + C₈H₁₆Question 26 of 29 Loading... 27. Why does incomplete combustion occur?When there is an insufficient supply of oxygen for complete combustionWhen there is reduced fuel avaliableWhen there is an insufficient supply of waterWhen the fuel is wetQuestion 27 of 29 Loading... 28. Explain the term hydrocarbonA hydrocarbon is an organic moleculeA hydrocarbon is a molecule that is in a homologous seriesA hydrocarbon is a molecule that comes from crude oilA hydrocarbon is a molecule containing only hydrogen and carbonQuestion 28 of 29 Loading... 29. 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?structural formulamolecular formulaempirical formulageneral formulaQuestion 29 of 29 Loading... Related Posts:The entire quiz question bank!The entire quiz question bank (Double only)!Key Calculations quizEquilibria (triple) quizCondensation Polymers quizElectrolysis quiz Hydr0Gen2020-02-16T15:14:58+00:00Categories: Uncategorized|Tags: Quiz, Topic: Alkenes & Polymers| Share This Story, Choose Your Platform! FacebookXRedditLinkedInTumblrPinterestVkEmail