Alkenes & Polymers quiz Loading... 1. What is the process of joining monomers together called?SynthesisCondensationDecompositionPolymerisationQuestion 1 of 29 Loading... 2. Why does incomplete combustion occur?When there is an insufficient supply of oxygen for complete combustionWhen the fuel is wetWhen there is reduced fuel avaliableWhen there is an insufficient supply of waterQuestion 2 of 29 Loading... 3. State the names and molecular formulae of the first 5 alkanesmethane (CH₄), ethane (C₂H₆), tritane (C₃H₈), butane (C₄H₁₀), pentane (C₅H₁₂)methane (CH₄), ethane (C₂H₆), propane (C₃H₈), butane (C₄H₁₀), pentane (C₅H₁₂)methane (CH₄), ethane (C₂H₆), tritane (C₃H₈), tetrane (C₄H₁₀), pentane (C₅H₁₂)methane (CH₄), ethane (C₂H₆), propane (C₃H₈), quatane (C₄H₁₀), pentane (C₅H₁₂)Question 3 of 29 Loading... 4. Explain how crude oil is separated into fractionsCrude oil is separated by fractional distillation. Crude oil is heated and the oil evaporates. It then goes into the tower. As the vapours rise up the tower the temperature rises. Different sized fractions condense at different heights because they have different boiling points. Smaller molecules condense high up in the tower. Larger molecules condense low down in the tower. Then the fractions are collected.Crude oil is separated by fractional distillation. Crude oil is heated and the oil evaporates. It then goes into the tower. As the vapours rise up the tower the temperature rises. Different sized fractions condense at different heights because they have different boiling points. Larger molecules condense high up in the tower. Smaller molecules condense low down in the tower. Then the fractions are collected.Crude oil is separated by fractional distillation. Crude oil is heated and the oil evaporates. It then goes into the tower. As the vapours rise up the tower the temperature falls. Different sized fractions condense at different heights because they have different boiling points. Larger molecules condense high up in the tower. Smaller molecules condense low down in the tower. Then the fractions are collected.Crude oil is separated by fractional distillation. Crude oil is heated and the oil evaporates. It then goes into the tower. As the vapours rise up the tower the temperature falls. Different sized fractions condense at different heights because they have different boiling points. Smaller molecules condense high up in the tower. Larger molecules condense low down in the tower. Then the fractions are collected.Question 4 of 29 Loading... 5. Name this moleculepent-1-enebutanepentanepropaneQuestion 5 of 29 Loading... 6. This diagram shows one repeat unit of a polymer. Name the monomer used to make this polymer.pent-2-enepolypentenepent-1-enepent-4-eneQuestion 6 of 29 Loading... 7. What is the problem with burning addition polymers to dispose of them?They explode when burntThey are not flammableThey are non-biodegradableThey produce toxic gases when burned.Question 7 of 29 Loading... 8. What two things can be added together to produce a dibromoalkane?An alkene and hydrogen bromideAn alkane, bromine and UV lightAn alkene and bromineAn alkane and bromineQuestion 8 of 29 Loading... 9. What is the functional group of an alkene?>C-C< (a carbon-to-carbon single bond)>C-NH₂< (A carbon to nitrogen bond)>C=C< (a carbon-to-carbon double bond)>C-OH< (a carbon to OH bond)Question 9 of 29 Loading... 10. What does the following diagram represent?polybut-2-enebut-2-enepolybut-1-enebut-1-eneQuestion 10 of 29 Loading... 11. Explain the term hydrocarbonA hydrocarbon is a molecule that is in a homologous seriesA hydrocarbon is an organic moleculeA hydrocarbon is a molecule that comes from crude oilA hydrocarbon is a molecule containing only hydrogen and carbonQuestion 11 of 29 Loading... 12. What is a fuel?A fuel is a liquid used in electrolysisA fuel is a substance that contains chemical energyA fuel is a substance that, when burned, releases heat energyA fuel is a substance that is used to power vehiclesQuestion 12 of 29 Loading... 13. 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?molecular formulageneral formulaempirical formulastructural formulaQuestion 13 of 29 Loading... 14. What are isomers?Compounds with the same empirical formula but different molecular formulasMolecules 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 concentrationsQuestion 14 of 29 Loading... 15. 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 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 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 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 less demand, e.g. petrol. Cracking also produces alkenes which are used in making polymers and ethanol.Question 15 of 29 Loading... 16. Recall a use of gasolineCookingFuel for aeroplanesFuel for carsFuel for lorriesQuestion 16 of 29 Loading... 17. Explain the term unsaturatedA molecule containing only single bondsA compound that is a liquid at room temperatureA poisonous moleculeA molecule containing a carbon-carbon double or triple bondQuestion 17 of 29 Loading... 18. What is crude oil?A mixture of alkanesA mixture of alcoholsA mixture of hydrocarbonsAn oily liquidQuestion 18 of 29 Loading... 19. Write a chemical equation for the cracking of decaneC₁₀H₂₀ → C₂H₄ + C₈H₁₈C₁₀H₂₀ → C₂H₄ + C₈H₁₆C₁₀H₂₂ → C₂H₄ + C₈H₁₈C₁₀H₂₂ → C₂H₄ + C₈H₁₆Question 19 of 29 Loading... 20. What is the name of this molecule?methanemethylethanemethanolQuestion 20 of 29 Loading... 21. State the general formula for alkenesCₙH₂ₙCₙH₂ₙ₊₂ CₙHₙCₙHₙ₊₁Question 21 of 29 Loading... 22. What is a substitution reaction?A reaction where an atoms of a group of atoms is removed from a moleculeA reaction where an atom or group of atoms is replaced by a different atom or group of atomsA reaction where an atom or group of atoms is added to a moleculeA reaction where a double bond breaks to form a long chain of moleculesQuestion 22 of 29 Loading... 23. In the fractional distillation of crude oil, how does viscosity change as the chains get longer?DecreasesIncreasesViscosity is independent of chain lengthRemains constantQuestion 23 of 29 Loading... 24. A student has been asked to draw all the alkene isomers of C₄H₁₀ and draws the following. Which of the following statements about the student's diagram is correct?The student is wrong. There is another isomer called 1,2-dimethylethane.The student is wrong. The molecule on the right is just normal butane. Bending the end round doesn't change that.The student is correct and deserves a tuck-shop voucher.The student is wrong because she makes no reference to the numbers of protons and neutrons in the molecules.Question 24 of 29 Loading... 25. What is used to test if something is an alkane or and alkene?StarchSilver nitrateBromine waterBenedict\'s reagentQuestion 25 of 29 Loading... 26. What is the molecular formula for butene?C₄H₁₀C₆H₁₂C₄H₈C₆H₁₄Question 26 of 29 Loading... 27. Write a chemical equation for the complete combustion of propaneC₃H₈ + 5O₂ → 3CO₂ + 8H₂OC₃H₈ + 5O₂ → 3CO₂ + 4H₂OC₃H₈ + 10O₂ → 3CO₂ + 4H₂OC₃H₈ + 10O₂ → 3CO₂ + 8H₂OQuestion 27 of 29 Loading... 28. Explain the term saturatedA molecule that will not react with anythingA molecule that is poisonousA molecule containing only single bondsA molecule that is usually a solid at room temperatureQuestion 28 of 29 Loading... 29. Write the word equation for the reaction between methane and brominemethane + bromine → dibromomethane + hydrogen bromidemethane + bromine → bromomethane + hydrogenmethane + bromine → bromomethane + hydrogen bromidemethane + bromine → dibromomethane + hydrogenQuestion 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! FacebookTwitterRedditLinkedInTumblrPinterestVkEmail