Alkenes & Polymers quiz Loading... 1. What is the functional group of an alkene?>C-C< (a carbon-to-carbon single bond)>C-NH₂< (A carbon to nitrogen bond)>C-OH< (a carbon to OH bond)>C=C< (a carbon-to-carbon double bond)Question 1 of 29 Loading... 2. This diagram shows one repeat unit of a polymer. Name the monomer used to make this polymer.chloroethenepolychloroethenepolytetrachloroethenechloroethaneQuestion 2 of 29 Loading... 3. What is cracking?The breaking down of long-chain alkanes into alkenes and shorter-chain alkanesThe breaking down of long-chain alkanes into shorter chain alkanesThe breaking down of organic hydrocarbons into short-chain alkanesThe separating of the different fractions of crude oilQuestion 3 of 29 Loading... 4. Why are alkanes classified as saturated hydrocarbons?They are toxic substancesThey are usually solids at room temperatureThey do not react easilyThey contain only single bondsQuestion 4 of 29 Loading... 5. Write a chemical equation for the complete combustion of propaneC₃H₈ + 10O₂ → 3CO₂ + 8H₂OC₃H₈ + 5O₂ → 3CO₂ + 8H₂OC₃H₈ + 5O₂ → 3CO₂ + 4H₂OC₃H₈ + 10O₂ → 3CO₂ + 4H₂OQuestion 5 of 29 Loading... 6. What type of reaction takes place when bromine reacts with an alkene?SynthesisDecompositionSubstitutionAdditionQuestion 6 of 29 Loading... 7. What are isomers?Atoms with the same number of protons but different numbers of neutronsSolutions with the same ratio of ions but different concentrationsMolecules with the same molecular formula but with a different structureCompounds with the same empirical formula but different molecular formulasQuestion 7 of 29 Loading... 8. What is the molecular formula for ethene?C₄H₈C₂H₄C₂H₆C₄H₁₀Question 8 of 29 Loading... 9. Name this moleculemethyl propanebutanedimethyl ethaneprop-1-eneQuestion 9 of 29 Loading... 10. What are the two products of the reaction between methane and bromine? (2)Bromoethane (C₂H₅Br) and hydrogen bromide (HBr)Bromoethane (C₂H₅Br) and hydrogen (H₂)Bromomethane (CH₃Br) and hydrogen (H₂)Bromomethane (CH₃Br) and hydrogen bromide (HBr)Question 10 of 29 Loading... 11. State the names and molecular formulae of the first 5 alkanesmethane (CH₄), ethane (C₂H₆), tritane (C₃H₈), tetrane (C₄H₁₀), pentane (C₅H₁₂)methane (CH₄), ethane (C₂H₆), propane (C₃H₈), quatane (C₄H₁₀), pentane (C₅H₁₂)methane (CH₄), ethane (C₂H₆), tritane (C₃H₈), butane (C₄H₁₀), pentane (C₅H₁₂)methane (CH₄), ethane (C₂H₆), propane (C₃H₈), butane (C₄H₁₀), pentane (C₅H₁₂)Question 11 of 29 Loading... 12. 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 correct and deserves a tuck-shop voucher.The student is wrong. The molecule on the right is just normal butane. Bending the end round doesn't change that.The student is wrong. There is another isomer called 1,2-dimethylethane.The student is wrong because she makes no reference to the numbers of protons and neutrons in the molecules.Question 12 of 29 Loading... 13. Explain why carbon monoxide is dangerous to humansIt is poisonous because it reduces the capacity of the blood to carry oxygenIt is poisonous because it poisons the bloodstreamIt is poisonous because it blocks blood flowIt is poisonous because it blocks surfaces for gas exchangeQuestion 13 of 29 Loading... 14. Explain why cracking is an important process in the oil industryCracking 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.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 long chains. Shorter chain hydrocarbons are in less demand, e.g. petrol. Cracking also produces alkenes which are used in making polymers and ethanol.Question 14 of 29 Loading... 15. Recall a use of fuel oilFuel for aeroplanesFuel for lorriesFuel for shipsSurfacing roadsQuestion 15 of 29 Loading... 16. What does the following diagram represent?One repeat unit of polyoct-2-eneOne repeat unit of polyoct-3-eneethylbutylethaneThe polymer oct-3-eneQuestion 16 of 29 Loading... 17. 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 double and single bondsBoth bonds in the double bond break. Monomers join together to form a long chain. Polymer contains only single bondsQuestion 17 of 29 Loading... 18. Bromine is added to a sample of an alkane and also to a sample of an alkene. Describe the result of each.With the alkane, changes from colourless to orange. With the alkene, no change (stays colourless) With the alkane, changes from orange to colourless. With the alkene, no change (stays orange) With the alkane, no change (stays orange). With the alkene, changes from orange to colourlessWith the alkane, no change (stays colourless). With the alkene, changes from colourless to orangeQuestion 18 of 29 Loading... 19. What is a substitution reaction?A reaction where an atom or group of atoms is replaced by a different atom or group of atomsA reaction where a double bond breaks to form a long chain of moleculesA reaction where an atoms of a group of atoms is removed from a moleculeA reaction where an atom or group of atoms is added to a moleculeQuestion 19 of 29 Loading... 20. What is crude oil?A mixture of hydrocarbonsAn oily liquidA mixture of alkanesA mixture of alcoholsQuestion 20 of 29 Loading... 21. What is a general formula?A 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 propertiesA formula to determine the exact number of different types of atom in a molecule, e.g. C₂H₄ for etheneQuestion 21 of 29 Loading... 22. Explain the term hydrocarbonA hydrocarbon is a molecule containing only hydrogen and carbonA hydrocarbon is an organic moleculeA hydrocarbon is a molecule that comes from crude oilA hydrocarbon is a molecule that is in a homologous seriesQuestion 22 of 29 Loading... 23. What is a fuel?A fuel is a substance that, when burned, releases heat energyA fuel is a substance that contains chemical energyA fuel is a liquid used in electrolysisA fuel is a substance that is used to power vehiclesQuestion 23 of 29 Loading... 24. In the fractional distillation of crude oil, how does viscosity change as the chains get longer?DecreasesRemains constantViscosity is independent of chain lengthIncreasesQuestion 24 of 29 Loading... 25. 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 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 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 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 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 25 of 29 Loading... 26. What is the problem with burning addition polymers to dispose of them?They are not flammableThey are non-biodegradableThey explode when burntThey produce toxic gases when burned.Question 26 of 29 Loading... 27. State the general formula for alkenesCₙH₂ₙCₙH₂ₙ₊₂ CₙHₙ₊₁CₙHₙQuestion 27 of 29 Loading... 28. Explain the term unsaturatedA compound that is a liquid at room temperatureA poisonous moleculeA molecule containing only single bondsA molecule containing a carbon-carbon double or triple bondQuestion 28 of 29 Loading... 29. What is the name of this molecule?ethanolethenemethaneethaneQuestion 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