山西省2023-2024学年度九年级第一学期阶段性练习(一)化学试题

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有机物消耗5 mol NaOH,C错误;D.苯环是共面型结构,含乙烯结构的碳碳双键也是共面型结构,故该有机物能处于同一个平面的碳原子不止7个,D错误。5.C【解析】A.通过分析可知,CH COI属于甲醇羰基化反应的反应中间体,其可与水作用,生成最终产物乙酸的同时,也可以生成使甲醇转化为CHI的HI,A项正确;B.通过分析可知,甲醇羰基化反应的反应物为甲醇以及CO,产物为乙酸,B项正确;C通过分析可知,铑配合物在整个反应历程中,成键数目,配体种类等均发生了变化,C项不正确;D.通过分析可知,反应中间体CH COI与水作用生成的HI可以使甲醇转化为CH3I,方程式可写成:CH3OH+HI→CH3I+H2O,D项正确。6.B【解析】该有机物的分子式为C1H8O3,可以变形为C,H12·3H2O,故它可以燃烧,①正确;该有机物含有醇羟基、碳碳双键,均能使酸性高锰酸钾溶液褪色,②正确;该有机物含有羧基,能与NaOH溶液反应,③正确;该有机物含有醇羟基和羧基,能发生酯化反应,④正确;该有机物含有碳碳双键,能发生加聚反应,⑤正确;该有机物不含卤原子、酯基等,不能发生水解反应,⑥错误;酯化反应属于取代反应,⑦正确7.D【解析】根据X、Y的结构,可知P中含有酯基(一C一O一),能发生水解反应,A正确;根据X、Y的结构可知该物质由酸和醇缩聚而成,B正确;由Y的结构可知,合成P的原料之一为丙三醇(甘油),油脂(高级脂肪酸甘油酯)水解可得甘油,C正确;乙二醇和邻苯二甲酸反应只能形成链状结构,D错误。8.(1)C,H,Br羰基(2)0OCH,(3)还原反应(4)d(5)+CH,OH浓s0+H2O△HOHOCOOHCOOCH,CH2-O-CHO-CH(6)12【解析】(1)根据碳的成键特点,A的分子式为C,H,B;D中含有的官能团结构是碳氧双键,即官能团为羰基。0-0CH(2)根据已知信息的反应机理:的结构简式逆推C的结构情OCH,(3)D-→E反应过程中,D中的羰基被还原为羟基,所以反应类型为还原反应。(4)E和F的结构上相差一个一COOH,应该利用一COOH的性质验证F和E的不同,只有NaHC)3可以和羧基反应,所以答案为d。(5)根据已知信息,可以推断G的结构简式为,G和HOCOOHCHOH在浓硫酸、加热的条件下发生酯化反应,化学方程式为+CHOH S.+H2O。△HOHOCOOHCOOCH,06

43.Theweatherinwasthehottest.A.BeijingB.SingaporeCityC.HongKongD.Sydney(B)WiththedevelopmentofscieneechnoloydcionthefuturewillbeverydifferenPeoplewillusetheInternetmoretotakeclassesindifferentsubjectsindifferentplaces.Forexample,studentsmaytakeamathlessononline,upload(theirhomeworklaterandthensendittotheirteacherbyemail.Also,studentswillbeabletostudyatfamousuniversitiesinothercountrieswithoutleavinghome.Inthisway,studyingwillbecomemucheasier.What'smore,peoplewillspendmoretimestudying.Inthefuture,peoplewillchangetheirjobsoften.Manyofthemwillhavethreeorfourdifferentjobs.Sotheywillhavetogobacktoschooltoimprovethemselves.Asaresult,theywillmeetclassmatesofdifferentages.Whataboutthesubjectsatschoolinthefuture?Willtheychange?Yes,ofcoure.Childrenwillusecomputersatschoolfromtheverybeginning.Foreignlanguageswillbemoreimportantthen.Allchildrenwillleamtwoorthreelanguages.Theirabilitiestoearlanguageswillbegreat.Soitwillbeagoodideaforchildrentolearnmorelanguagesfromanearlyage.Inaword,educationwillbecomeeasierinthefuture.44.ThewriterthinksstudyingatfamousuniversitiesinothercountrieswillbeA.harderB.worseC.simplerD.stricter45.PeopleofdifferentageswillappearatschooltoA.improvethemselvesB.visittheirfavoriteschoolC.makenewfriendsD.testthemselves46.Inwhichpartofanewspapercanyoureadthispassage?A.HealthB.Education.C.Sports.D.Art.(C)To:XiaoLiSubject:AtravelplantoXi'anDearXiaoLi,MytimehereinChinaisgoingwell.Ilovemynewschoolandclassmates.OvertheOctoberholiday,myparentsandIareplanningtogotoXi'antoseetheTerracottaArmy.I'veheardthatitisanamazingsight,andIcan'twaittogo.Tome,thestoryoftheTerracottaArmyisalmostincredible.It'samazingthattherearemorethan8,000statues()andnooneinmoderntimesknewaboutthemuntilthe1970s.We'realsoplanningtovisitseveralotherplacesinXi'an.MydadandIarebothlookingforwardtogoingtotheShaanxiHistoryMuseum,becausemydadloveshistoryandIhaveheardthatthismuseumisknownasa"Chinesetreasurehouse"!We'realsogoingtotheXianCityWallandafewotherfamoussights.We'retakingthetrain,leavingthedaybeforetheOctoberholidaybegins.We'rearrivingat9:30a.m.andwillstartsightseeingrightaway,soIhopewesleepwellonthetrain!Iguessthat'sallfornow!I'llwriteagainsoonandsendphotos!Doyouhaveanyplansforthe线comingholiday?Hopetohearfromyousoon.Yourfriend,Richard47.Whatkindofwritingisthetext?C.Email.D.Story.A.Ad.B.News.九年级英语期中试题第4页共8页

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