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【答案】《GreenChemistry》(四川大学)章节期末慕课答案
有些题目顺序不一致,下载后按键盘ctrl+F进行搜索1stWeek.Chapter1Introduction1stWeek.Chapter1Homework-TypicalEnvironmentalProblems1.Pleasechooseoneofthetypicalenvironmentalproblemsinvolvinginchemistry,stateitsstatusandthereason,andthensuggestyouropiniononhowtoalleviateorsolvetheseriousenvironmentalproblems.(NOTE:PleasewriteinEnglish.注意!请将作业线下完成,再以图片形式上传至此处,规范书写涉及的化学式、化学符号及数学公式,直接线上作答会有数据遗失及乱码的情况。)
答案:【Anyenvironmentalprobleminvolvinginchemistry.】2.StudentNumber(学号),StudentName(姓名),ClassNumber/Teacher’sname(课序号或者课程教师姓名).(Note:5points)
答案:【不写没分】2ndWeek.Chapter2GreenChemistry2ndWeek.Chapter2Homework11.StudentNumber(学号),StudentName(姓名),ClassNumber/Teacher’sname(课序号或者课程教师姓名).(Note:5points)
答案:【写全5分】2.Pleasestatebrieflythesimilarityandthedifferencebetweengreenchemistryandthetraditionalwayofenvironmentalprotection.(NOTE:PleasewriteinEnglish.注意!请将作业线下完成,再以图片形式上传至此处,规范书写涉及的化学式、化学符号及数学公式,直接线上作答会有数据遗失及乱码的情况。)
答案:【Analyzerationallythesimilarityandthedifferencebetweengreenchemistryandthetraditionalwaytotreatenvironmentalpollution.Ifonlyyougiveananswer,youcangetmorethan20points.】3rdWeek.Chapter2GreenChemistry3rdWeek.Chapter2Homework21.Pleasegiveusanexampletoillustratethattheatomiceconomicreactionisanecessaryconditionfornopollution.
答案:【Refertothematerialsorliteraturetogivespecificexamplestoanswer.Moremarkswillbeobtainedbygivingspecificchemicalequations,andIfonlyyougiveananswer,youcangetmorethan15points】2.SeethefollowingmethodforthepreparationofcyclohexaneoxideusingCH2Cl2or[Bmin]BF4(ionicliquid)assolvent.Pleasecalculateseparatelytheatomutilization(AU)andEfactorofRun1andRun2,andthenevaluatethepossibleinfluenceofreactionsolventonAUandEfactorofachemicalreaction.
答案:【4】3.Pleaseexplainbrieflytheconcept"Environmentalquotient(EQ)".
答案:【3】4.Pleaseexplainbrieflytheconcept"Environmentalfactor".
答案:【2】5.Pleaseexplaintheconcept"atomutilization".(Note:Herearefivequestions!Thisisthefirstone.Don'tforgetwriteyourname,classnumberandstudentnumber.PleaseunloadthepicturestofinishyourhomeworkandwriteinEnglish.)
答案:【1】4th.Week.Chapter2GreenChemistry4thWeek.Chapter2Homework31.What'sthechemicalessenceofbiodiesel?Canyougiveanexampleofeffectiveandenvironmentallybenigncatalystsandcatalyticprocessesforbiodieselproduction?(Note:Pleasewriteyourname,studentnumberandclass)
答案:【1)Essenceofbiodiesel:Avegetableoil-/animalfat-baseddieselfuelconsistingoflong-chainalkyl(methyl,ethyl,orpropyl)esters.2)RefertothetextbookorliteraturetogivespecificexamplestoanswerJustgiveaspecificexampleandyoucanscoremorethan13points】5thWeek.Chapter2GreenChemistry5thWeek.Chapter2Homework41.Pleasechooseausedcurrentlyorganicsyntheticrouteandreviewitusingtheprinciplesofgreenchemistry,thendesignanewgreenersyntheticroute.
答案:【RefertothematerialsorliteraturetogivespecificexamplestoanswerJustgiveaspecificexampleandyoucanscoremorethan40points】2.Howtomakeachemicalreactiongreenerinareactionprocess?(note:pleasewriteyournameandstudentnumberhere.)
答案:【1】6thWeek.Chapter2GreenChemistry6thWeek.Chapter2Homework51.Howtodesignsaferchemical?
答案:【Refertotextbookandvideocoursewareforanswers.】2.Pleasestatebrieflythe12principlesofgreenchemistry.(Pleasewriteyournameandstudentnumberhere.)
答案:【Refertotextbookandvideocoursewareforanswers】6thWeek.Chapter2-UnitTest1.多选题:Theenergyiswidelyusedinchemistryandchemicalindustryinthefollowingaspects:
选项:
A、Acceleratesthereactionratewithheat
B、Theneedtocontrolreactivitythroughcooling
C、Pre-heatingofthereactionmixture
D、Separationenergyrequirement
答案:【Acceleratesthereactionratewithheat;Theneedtocontrolreactivitythroughcooling;Pre-heatingofthereactionmixture;Separationenergyrequirement】2.多选题:Thereactiontypesinvolvedinbiomassconversiontofinechemicalsandliquidfuelsinclude:
选项:
A、Hydrolysis
B、Deoxygenation
C、Condensation
D、Hydrogenation
答案:【Hydrolysis;Deoxygenation;Condensation;Hydrogenation】3.多选题:OneoftheresearchareainGreenChemistryistouserenewablefeedstocksforchemicalproduction.Whichcouldbeusedasfeedstocksforchemicalproductioninthefollowingresources?
选项:
A、Kitchengarbage
B、Wastecookingoil
C、Agriculturalwastes
D、Microalgae
答案:【Kitchengarbage;Wastecookingoil;Agriculturalwastes;Microalgae】4.多选题:Theserenewablefeed-stocksaremostoftenassociatedwithbiologicalandplantbasedstartingmaterials,including:
选项:
A、Agriculturalwastes
B、Sawdust
C、Carbondioxide
D、Coal
答案:【Agriculturalwastes;Sawdust】5.多选题:Insomecases,theapplicationofatomiceconomicalreactioninchemicalsynthesisisnotenoughforeliminatingtheformationofwastes.Thesecasesinclude:
选项:
A、Thepresenceofparallelreaction
B、Lowequilibriumconversion
C、Lowproductstereoselectivity
D、Difficultyinproductseparation
答案:【Thepresenceofparallelreaction;Lowequilibriumconversion;Lowproductstereoselectivity;Difficultyinproductseparation】6.多选题:Severalunconventionalprocessingtechniquesthatrelyonalternativeformsandsourcesofenergyareofimportanceforprocessintensification.Thesealternativeformsandsourcesofenergyinclude:
选项:
A、Sonic
B、Microwaves
C、Solarenergy
D、Photoandotherradiation
答案:【Sonic;Microwaves;Solarenergy;Photoandotherradiation】7.多选题:Whichtypicalenvironmentalproblemsinthefollowingarerelatedtochemicalindustry?
选项:
A、Depletionofozonelayer
B、Photochemicalsmogandhaze
C、Acidrain
D、Globalwarming
答案:【Depletionofozonelayer;Photochemicalsmogandhaze;Acidrain;Globalwarming】8.单选题:Chemicalreactionwith100%atomutilizationhastwocharacteristics.Thereactantscouldbefullyutilized,andtheresourcecouldbemostpossiblyusedeconomically.Thewastecouldbeminimized.
选项:
A、正确
B、错误
答案:【正确】9.单选题:Traditionalpollutiontreatmentcanprovideapermanentcure.
选项:
A、正确
B、错误
答案:【错误】10.单选题:Oneoftheobviouseffectofcatalysistofacilitatethereactionistominimizetheactivationenergy(energycosts),andthusreducethereactiontemperature.
选项:
A、正确
B、错误
答案:【正确】11.单选题:Thegoalofgreenchemistryistoeliminatethepotentialofpollutionbeforeitoccurs.
选项:
A、正确
B、错误
答案:【正确】12.单选题:Wecancontrolthereactionprocessevenwecannotmeasuretheparametersofchemicalreaction.
选项:
A、正确
B、错误
答案:【错误】13.单选题:Renewablefeedstocksarethesubstancesthatareeasilyregeneratedwithintimeframesthatareaccessibletothehumanlifetime,includingcarbondioxideandmethane.
选项:
A、正确
B、错误
答案:【正确】14.单选题:Theatomiceconomicalreactionisnotarequisitecondition(必要条件)foreliminatingtheformationofwastesbecausethelowequilibriumconversionandlowproductselectivityinachemicalreactionwillalsobringaboutpollutions.
选项:
A、正确
B、错误
答案:【错误】15.单选题:Thegoalofgreenchemistryistotreattheenvironmentalpollutionsalreadygeneratedinchemicalreactions.
选项:
A、正确
B、错误
答案:【错误】7thWeek.Chapter3DesigningSaferChemicals7thWeek.Chapter3Homework11.Pleaseexplainthemaincontentoftheinternalconsiderationsfordesigningsaferchemicals.
答案:【RefertoPPT/lecture.】2.Pleaseexplainthemaincontentoftheexternalconsiderationsfordesigningsaferchemicals.(Pleasewriteyournameandstudentnumberhere.)
答案:【2】8thWeek.Chapter3DesigningSaferChemicals8thWeek.Chapter3Homework21.Howtomodifythemolecularpropertiestoavoidtheabsorptionfromthegastrointestinaltract,thelungandtheskin?(Pleasereadthequestioncarefully!Writeyourname,studentnumberandclassnumber)
答案:【Consulttextbooks,videocoursewaretoanswerthequestion,andgivethespecifictips.】9thWeek.Chapter3DesigningSaferChemicals9thWeek.Chapter3Homework31.PleasedescribethedefinitionofStructure-ActivityRelationships(SARs)andDescriptors
答案:【3】2.Whatarethestructuralcharacteristicsoftypicalelectrophilicsubstances?Whatarethereactionstheyundergowithbiologicalnucleophiles?
答案:【2】10thWeek.Chapter3DesigningSaferChemicals10thWeek.Chapter3-UnitTest1.多选题:Propertiesofchemicalsrelatedtotheirenvironmentaldistributionordispersioninclude:
选项:
A、Volatility(挥发性)ormeltingpoint
B、Persistence(持久性)orbiodegradability
C、Watersolubility
D、Conversiontobiologicallyinactivesubstances
答案:【Volatility(挥发性)ormeltingpoint;Persistence(持久性)orbiodegradability;Watersolubility;Conversiontobiologicallyinactivesubstances】2.多选题:Internalconsiderationsfordesigningsaferchemicalsmeanthepreventionoftoxiceffect(预防毒性).Theygenerallyincludeapproachesusingmolecularmanipulationstoreachthefollowingpurposes.
选项:
A、Toavoidindirectbio-toxicityorbio-activation(生物活化)
B、Toavoiddirecttoxicity
C、Tofacilitatetheuptakeofchemicalsbyorganisms
D、Tofacilitatebio-detoxication
答案:【Toavoidindirectbio-toxicityorbio-activation(生物活化);Toavoiddirecttoxicity;Tofacilitatebio-detoxication】3.多选题:Whatarewronginthefollowingdescriptions?
选项:
A、Pharmacophoreisastructuralfeaturethatthebiologicalresponseisdesiredinthecaseofdrugs
B、Pharmacophoreisastructuralfeaturethatthebiologicalresponseisundesiredinthecaseofdrugs
C、Toxicophoreisastructuralfeaturethatthebiologicaleffectisundesiredinthecaseofcommercialchemicals
D、Toxicophoreisastructuralfeaturethatthebiologicaleffectisdesiredinthecaseofcommercialchemicalsubstances
答案:【Pharmacophoreisastructuralfeaturethatthebiologicalresponseisundesiredinthecaseofdrugs;Toxicophoreisastructuralfeaturethatthebiologicaleffectisdesiredinthecaseofcommercialchemicalsubstances】4.多选题:Howtochangethepropertyofachemicalinordertoavoiditstoxicitytohumanbeingsandenvironment?
选项:
A、Tomakeitnottopossibletoenterthebody
B、Tomakeiteasilyabsorbed
C、Tomakeitnotpossibletoaffectthebiochemicalandphysiologicalprocesseshazardously
D、Tomakeitpossibletoaffectthebiochemicalandphysiologicalprocesses
答案:【Tomakeitnottopossibletoenterthebody;Tomakeitnotpossibletoaffectthebiochemicalandphysiologicalprocesseshazardously】5.多选题:Toxicokineticsrefertotheinterrelationshipofthefollowingprocesses:
选项:
A、Absorption
B、Distribution
C、Mineralization
D、Catalysis
答案:【Absorption;Distribution】6.多选题:WecoulduseQSARequationstopredicttheaquatictoxicityofchemicalsbytransformingsomeimportantphysicochemicalpropertiesofthechemicalsintodescriptors.Theserelatedphysicochemicalpropertiesinclude:
选项:
A、Octanol-waterpartitioncoefficient(logP)
B、Watersolubility
C、Dissolutionconstant
D、Relativemolecularweight
答案:【Octanol-waterpartitioncoefficient(logP);Watersolubility;Dissolutionconstant;Relativemolecularweight】7.多选题:Thethreefundamentalrequirementsforchemicaltoxicityare
选项:
A、Exposure
B、Bio-accumulation
C、Bio-availability
D、Intrinsictoxicity
答案:【Exposure;Bio-availability;Intrinsictoxicity】8.单选题:Externalconsiderationsmeantheincrementofexposureoraccessibilityofchemicals.
选项:
A、正确
B、错误
答案:【错误】9.单选题:Non-polar,lipid-solublechemicalscanpenetratethecellularmembranesmorereadily,becausecellularmembraneshaveahigherlipidcontent.
选项:
A、正确
B、错误
答案:【错误】10.单选题:Thepurposeofmetabolismisdetoxication.
选项:
A、正确
B、错误
答案:【正确】11.单选题:Internalconsiderationsfordesigningsaferchemicalsmeantopreventthetoxiceffectofchemicals.
选项:
A、正确
B、错误
答案:【正确】12.单选题:ChemicalswithlogP≤2exhibitlowtoxicity,becausenosufficientlywatersolubilitytoenterthecellularmembranesofaquaticorganisms,thentheyarenotbioavailable.
选项:
A、正确
B、错误
答案:【错误】13.单选题:Electrophilicsubstances/metabolitesreactcovalentlywithnucleophilicsubstituentsofcellularmacromolecules.Thereversiblecovalentinteractionresultsinavarietyoftoxiceffects.
选项:
A、正确
B、错误
答案:【错误】14.单选题:Ifwewanttoreducetheabsorptionofachemicalsubstancefromthegastrointestinaltract,thelipidsolubilityshouldbedesignedatLogP<5.
选项:
A、正确
B、错误
答案:【错误】15.单选题:Theconcentrationofaparticularsubstanceinitstargetorgansisnotnecessarilythehighest.
选项:
A、正确
B、错误
答案:【正确】10thWeek.Chapter3Homework41.Pleaselistsomeofthetypicalisosteres.
答案:【22】2.Langmuir’sisostericreplacement
答案:【22】11thWeek.Chapter4ApplicationofDesigningSaferChemicals11thWeek.Chapter4Homework11.Pleaselistthetypicalmolecularfeaturesgenerallyincreasebiodegradability.
答案:【222】2.Whatarethecharacteristicsofchemicalstructuresandphysicochemicalpropertiesofdegradablecompounds?
答案:【total5aspects】3.PleasediscussthefeasibilityoftheisostericreplacementofCwithSiandtheadvantagesofSisubstituentsbasedonthechemicalfeaturesofSiandC.
答案:【2】12thWeek.Chapter4ApplicationofDesigningSaferChemicals12thWeekChapter4Homework21.Howtodesignthesaferchemicalsfromtheviewofmolecularweightandmolecularsize?
答案:【3】2.Whatarethegeneralrulesforcharacterizingthetoxicityofchemicalsusingoctanol-waterpartitioncoefficientlogP?
答案:【logP】13thWeek.Chapter4ApplicationofDesigningSaferChemicals13thWeekChapter4Unittest1.多选题:Thepossibleeffectsofthesolubilityofchemicalsonbiodegradabilityareasfollows:
选项:
A、Bio-activation
B、Rateofsolubilization
C、Enzymatichydrolysis
D、Microbialbioavailability
答案:【Rateofsolubilization;Microbialbioavailability】2.多选题:Thefollowingmolecularfeaturesofchemicalsgenerallydoincreasetheresistancetoaerobic(需氧)biodegradation,except:
选项:
A、Halogensandchainbranching
B、Potentialsitesofenzymatichydrolysis
C、Un-substitutedlinearalkylchains
D、Heterocyclicresidues
答案:【Potentialsitesofenzymatichydrolysis;Un-substitutedlinearalkylchains】3.多选题:Principlesfordesigningsaferdyechemicalstoaquaticspeciesinclude:
选项:
A、Thenumberofanionsshouldbelessthanthatofcations
B、Sulfonicgroup(磺酸基)isbetterthancarboxylicgroup(羧酸基)
C、Molecularweightshouldbelargerthan1000Daltons
D、Todecreasethediameterofthemolecule
答案:【Sulfonicgroup(磺酸基)isbetterthancarboxylicgroup(羧酸基);Molecularweightshouldbelargerthan1000Daltons】4.多选题:Classificationofsurfactantsincludes:
选项:
A、Cationicsurfactants
B、Anionicsurfactants
C、Neutralsurfactants
D、Amphotericsurfactants
答案:【Cationicsurfactants;Anionicsurfactants;Neutralsurfactants;Amphotericsurfactants】5.多选题:FordelocalizedcationicdyescontainingN,thetoxicitycomparisonshouldbe:
选项:
A、PrimaryN>SecondaryN>TertiaryN
B、PrimaryN<SecondaryN<TertiaryN
C、ThemoresubstituentsonNatomthereare,themoreacutethetoxicityis
D、ThemoresubstituentsonNatomthereare,thelessacutethetoxicityis
答案:【PrimaryN<SecondaryN<TertiaryN;ThemoresubstituentsonNatomthereare,themoreacutethetoxicityis】6.多选题:Biodegradabilityofchemicalsisusuallyenhancedbythefollowingmolecularfeatures:
选项:
A、Un-substitutedlinearalkylandphenylrings
B、Heterocyclicresidues
C、Oxygenintheformofhydroxylorcarboxylicgroups
D、Halogens
答案:【Un-substitutedlinearalkylandphenylrings;Oxygenintheformofhydroxylorcarboxylicgroups】7.多选题:Whichgroupofmetalsinthefollowingshouldweavoidusingwhenwearedesigningmetalizedaciddyes(金属化酸性染料).
选项:
A、Al,Cr,orCo
B、Al,Cr,orZn
C、Cr,Co,orZn
D、Fe,Cu,orZn
答案:【Al,Cr,orCo;Al,Cr,orZn;Cr,Co,orZn】8.单选题:TheintroductionofOisparticularlyimportantforbiodegradation,becausethe1ststepofbiodegradationissomekindofoxidationreactionwhichisalmostalwaystheratelimitingstep.
选项:
A、正确
B、错误
答案:【正确】9.单选题:Themajorityofchemicalsthataretoxictoaquaticspeciesaretoxicbyspecifictoxicity.
选项:
A、正确
B、错误
答案:【错误】10.单选题:IfwecomparethemoleculeA()withanothermoleculeB(),themoleculeAshowshighertoxicitythanthemoleculeB.
选项:
A、正确
B、错误
答案:【错误】11.单选题:Theeventualmineralizationoforganiccompoundscanbeattributedpredominantlytothebiodegradationbyhigherorganisms.
选项:
A、正确
B、错误
答案:【错误】12.单选题:DDDisasilaneanalogofDDT(organochlorinepesticide有机氯杀虫剂),theformerismorebiodegradablethanthelatter.
选项:
A、正确
B、错误
答案:【正确】13.单选题:IfOhasbeeninsertedintothestructureduringmoleculardesign,thebiodegradabilityofachemicalwillbeenhanced.
选项:
A、正确
B、错误
答案:【正确】14.单选题:Forveryinsolublechemicals,thereplacementofagivenfunctionalgroupthatincreasessolubilitymayreducethebiodegradability.
选项:
A、正确
B、错误
答案:【错误】15.单选题:Muscarinicantagonistis(蝇覃碱拮抗剂)isasilaneanalogofneopentylcarbamate(新戊基氨基甲酸酯),theformerismorebiodegradablethanthelatter.
选项:
A、正确
B、错误
答案:【正确】13thWeekChapter4Homework31.Pleasediscusstheclassificationoforganicdyesbasedonthegroupfeatureofdyes.Whatarethegeneralprinciplesfordesigningsaferdyechemicalstoaquaticspecies?
答案:【4generalaspects】14thWeek.Chapter5TechniquesinGreenChemistry14thWeekChapter5Homework11.Whatarenewgreenoxidantscomparedwithtraditionalinorganicoxidants?Whataretheirfeatures?
答案:【5】2.Pleaseillustratethestructuralinfluenceofcatalystsonreactionselectivitybythealkylationofnaphthalenewithpropylene.
答案:【Anexampleincourseware】3.Whydowesayacatalystplayanimportantroleingreenchemistry?
答案:【Frompollutionandgreenchemistry】15thWeek.Chapter5TechniquesinGreenChemistry15thWeekChapter5Homework21.PleasestatethecharactersofSCFcomparedwithcommonfluid,andtheadvantagesofSCFusedasachemicalmedium.(charactersandadvantages)
答案:【2】2.Howtochangereactionsolventaccordingtotheviewpointofgreenchemistry?Andtheircharacters?
答案:【mainly5solventsystems】16thWeek.Chapter5TechniquesinGreenChemistry16thWeekChapter5-Unittest1.多选题:Volatileorganiccompounds(VOCs)arefrequentlyusedassolventsinchemicalreactions,therebyleadingtopotentialharmfulnesstohandlersandenvironments.Fromtheviewpointsofgreenchemistry,whichinthefollowingcouldbeusedasnewsolventsinsteadofVOCsforchemicaltransformation?
选项:
A、Ionicliquids
B、SupercriticalCO2
C、Dimethylsulfoxide(DMSO)
D、Subcriticalwater
答案:【Ionicliquids;SupercriticalCO2;Subcriticalwater】2.多选题:Oxidationreactionsarefrequentlyusedinpetrol-refinery(石油炼制).Tominimizethepollutionsinducedbyinorganicoxidants,somegreenoxidantscouldbeusedinchemicalsynthesis.Thesegreenoxidantsinclude:
选项:
A、HNO3
B、O3
C、N2O
D、latticeoxygen
答案:【O3;N2O;latticeoxygen】3.多选题:Catalyticdistillationisakindoftechniqueofprocessintensification,whichcombinesthecatalyticreactionandproductseparationinasingledistillationcolumn.Whichequipmentortechniquesinthefollowingareincludedinprocessintensification?
选项:
A、Membranereactor
B、StaticMixers
C、Microreactors
D、Vacuumdistillation
答案:【Membranereactor;StaticMixers;Microreactors】4.多选题:Consideringthefoodrequirement,thefollowingbiomassresourcescouldbeusedasthechemicalfeedstocksforproducingfinechemicalsandliquidfuels:
选项:
A、Woodywastes
B、Microalgae
C、Wheat
D、Rice
答案:【Woodywastes;Microalgae】5.多选题:Theuseofcatalystsispreferredingreenchemistrybecauseofthefollowingreasons:
选项:
A、Increasetheselectivityofaspecialproduct
B、Promotethechemicalprocesses
C、Reduceenvironmentalpollutions
D、Activatenewstartingmaterials
答案:【Increasetheselectivityofaspecialproduct;Promotethechemicalprocesses;Reduceenvironmentalpollutions;Activatenewstartingmaterials】6.多选题:WecanusethefollowingsubstancestoreplacethetraditionalinorganicoxidantssuchasCrO3,KMnO4,andHNO3incleaneroxidationreactions:
选项:
A、H2O2
B、Latticeoxygen
C、N2O
D、O2
答案:【H2O2;Latticeoxygen;N2O;O2】7.多选题:Volatileorganiccompounds(VOCs)arefrequentlyusedassolventsinchemicalreactions,whichwillleadtopotentialharmfulnesstohandlersandenvironments.Fromtheviewpointsofgreenchemistry,whichinthefollowingcouldbeusedasnewsolventsinsteadofVOCsforchemicalsynthesis?
选项:
A、Water
B、SupercriticalCO2
C、Tetrahydrofuran(THF)
D、Deepeutectics(低共熔溶剂)
答案:【Water;SupercriticalCO2;Deepeutectics(低共熔溶剂)】8.单选题:Theaqueoussolubilityofachemicalonbiodegradabilitydoesnotinfluenceitsmicrobialbioavailability.
选项:
A、正确
B、错误
答案:【错误】9.单选题:Ionicliquidscanbeusedasgreensolventsbecausetheyexhibithighsolubilitytoawideoforganic,inorganicandorganometalliccompounds,areflammableandhavehighvaporpressure.
选项:
A、正确
B、错误
答案:【错误】10.单选题:Catalystscanimprovethereactionconditions,suchastemperature,pressureandenergyconsuming,andeliminatetheusageoftoxicreactionmedium.
选项:
A、正确
B、错误
答案:【正确】11.单选题:Insomecases,theuseofcatalystscaneliminatetheuseoftoxicreactionmediainchemicalsynthesis.
选项:
A、正确
B、错误
答案:【正确】12.单选题:Themembranereactorisaninstanceforprocessintensification,whichcombinesthefunctionsofchemicalreactionandseparationintoasinglereactor.
选项:
A、正确
B、错误
答案:【正确】13.单选题:Room-temperatureionicliquids(ILs)aregoodsolventsfordissolvingawiderangeoforganic,inorganicandorganometalliccompounds.
选项:
A、正确
B、错误
答案:【正确】14.单选题:SupercriticalCO2canbeusedasagreensolventbecausealloftheorganic,inorganicandorganometalliccompoundscouldbedissolvedinit.
选项:
A、正确
B、错误
答案:【错误】16thWeekChapter5Homework31.Whatisthereactivecatalyticdistillation?Pleasediscussitscharacters.
答案:【22】2.Whatisprocessintensification?Whatwayscanbeusedtorealizetheprocessintensification?
答案:【Refertotextbookandcourseware】ThethirdperiodfinalexamofGreenChemistryThethirdperiodfinalexamofGreenChemistry1.Withthedepletionoffossilenergyandenvironmentaldegradation,theuseofrenewableresourceshasbecomearesearchhotspotinrecentyears.Moreandmoreattentionhasbeenpaidtotheefficientconversionandeffectiveutilizationofbiomassresources.Biomassrawmaterialshavecomplexcomponentsandneedtobeprocessedbeforebeingused.Infact,thestructuralheterogeneityandthepresenceofnetworksofinter-andintra-molecularinteractionsinbiopolymermatricesremainunsolvedchallengestocleanpretreatmentforbiocompositeprocessing.Thetraditionalbiomassdissolvingandpretreatingsystemincludesstrongalkalisystemandcopperammoniasolutionsystem.In2002,Rogersetal.[J.Am.Chem.Soc.2002,124,4974-4975]showedthattheionicliquid(IL)1-butyl-3-methylimidazoliumchloride([BMIM]Cl)isapowerfulsolventforcellulose.InIL,cellulosecanbedegradedtosugars,whichcanfurtherbeconvertedinto5-hydroxymethylfurfural(HMF),levulinicacid,formicacid,malicacid,gluconicacid,sorbitol,C12-alkane(themaincomponentoffuel),andsoon,throughdehydration,hydrolysis,oxidation,hydrogenationandotherreactions,asshowninFigure2.In2007,LiandZhao[Adv.Synth.Catal.,2007,349,1847-1850]reportedforthefirsttimeannovelmethodforcellulosehydrolysisin[BMIM]ClcatalyzedbyH2SO4withoutpretreatment.Withthismethod,hydrolysisproceededatarelativelylowertemperatureandunderatmosphericpressurewithreducedacidloadingandwithoutcompromisingtheproductyield.Next,Schüthetal.[Angew.Chem.Int.Ed.,2008,47,8047-8050]usedtheacidicresinAmberlyst15DRYcatalysttostudythedepolymerizationofcellulosein[BMIM]ClIL.TheyfoundthatsolidacidsarepowerfulcatalystsforthehydrolysisofcellulosedissolvedinanIL.Celluloseundergoesselectivedepolymerizationtoyieldcelluloseoligomers(cello-oligomers)withoutanysubstantialformationofsideproducts.Thecello-oligomersarereadilyseparatedbyadditionofwater.Interestingly,afterareactiontimeof5h,theisolatedcello-oligomersconsistedofapproximatelytenanhydroglucoseunits(AGU).Theamountofisolatedcellulosedecreasedduringthereactionfrom90%attheinitialtimeto48%after5h.Theseresultsarenotexpectedonthebasisoftheexperiencegainedforconventionaldilutedacidhydrolysisofcelluloseinaqueousslurries.Theeaseofcelluloseprocessingusingsolidcatalystscouldleadtonovelprocessoptionsandallowthelarge-scaleuseofcellulosedepolymerizationasthefirststepinbiorefineries.Questions:(1)Correlatetheabovecontentstosomeofthe12principlesofgreenchemistry?(6’)(2)Accordingtoyourknowledgelearnedingreenchemistry,pleasetrytocommentontheadvantagesoftheabove-mentionedcontentsfromtheviewpointsofstartingmaterials,solvents,catalysts,andsoon.(21’)
答案:【Thefourthquestion】2.Someopportunitiesforpollutionpreventionbymoleculardesignexistinindustry.Surfactantshavemanyusesasantistaticagents,dyelevelingagents,lubricants,etc.,andsubstantialvolumesofwastewaterthatmustbetreatedbeforebeingreleasearegeneratedintextileprocessing.SomesurfactantshavebeenthesubjectofnumerousPMNs(PMN:Premanufacturingnotice)atEPA(EnvironmentalProtectionAgency).AnexamplefromEPA’sPMNprogramisagroupofalkylphosphatesurfactantssuchasisooctadecanolphosphatethatishydrolysable.ItsstructureisshowninthefollowingschemewhereMisthecounterion.Someexpertshavestronglyrecommendedthatphosphateinputstosurfacewatersbereducedsignificantlyintheinterestofenvironmentalprotection.Questions:(1)Pleasediscussthestructuralfeaturesofisooctadecanolphosphateandthepossibleconsequencesforenvironment,andsuggest2possiblereasonswhytheexpertssuggestedreducingsignificantlytheinputofphosphatetowater.(8’)(2)Pleasegive4possibleapproachestoreducethepotentialharmfulnessoftheabovephosphatetoaqueousspeciesbymolecularmodificationfromtheviewpointsofgreenchemistry.(8’)
答案:【Thethirdquestion】3.Pyrethrinsareaclassofinsecticides.Thepyrethrinana
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