【单选题】【消耗次数:1】
在下列物质中,分别加入金属钠,不能产生氢气的是( )。
75%的酒精
无水酒精
蒸馏水
参考答案:
复制
纠错
相关题目
【判断题】 禁止用工业酒精配制饮料酒,是因为工业酒精中含有下列物质中的甲醇
①  正确
②  错误
【单选题】 金属钠、钾失火时,需用的灭火剂是( )。
① 
② 
③  泡沫灭火器
④  液态二氧化碳灭火剂
【判断题】 金属锂应保存在石蜡中,金属钠和钾应保存在煤油中
①  正确
②  错误
【单选题】 将下列物质分别加到湿的红色布条上,不能使其褪色是( )。
①  液氯
②  氯化钙
③  新制氯水
④  次氯酸钠溶液和HCl混合液
【判断题】 麦胶蛋白不溶于水,无水乙醇及其他中性溶剂,但能溶于60%—80%的酒精溶液,故称为醇溶蛋白。
①  正确
②  错误
【判断题】 免维护蓄电池在使用过程中不需补加蒸馏水。()
①  正确
②  错误
【单选题】 酒精等“绿色燃料”的研发备受世界关注,利用玉米秸秆生成燃料酒精的大致流程是:玉米秸秆→糖液→酒精.由糖液到酒精的阶段需要的菌种是()。
①  A.酵母菌
②  B.乳酸菌
③  C.青霉菌
④  D.曲霉菌
【单选题】 酒精的吸收部位是
①  口腔
②  十二指肠
③  空肠
④ 
【多选题】 下列物质能跟镁反应并产生氢气的是()
①  A甲酸溶液
②  B氢氧化钠溶液
③  C氯化铵溶液
④  D碳酸钠溶液
【单选题】 有机物质如酒精与三氧化铬接触时,( )。
①  无现象
②  有气体放出
③  有火焰
④  有沉淀生成
随机题目
【单选题】 The boy is not happy at the new school. He has ________ friends there.
①  few
②  a few
③  little
④  a little
【单选题】 We were all surprised when he made it clear that he _____________office soon.
①  leaves
②  would leave
③  left
④  had left
【单选题】 He _______ lives in the house where he was born.
①  already
②  yet
③  still
④  ever
【单选题】 I fell and hurt myself while I ________ basketball yesterday.
①  was playing
②  am playing
③  play
④  played
【单选题】 When father was young, he ______from morning till night.
①  was made work
②  was made working
③  made to work
④  was made to work
【单选题】 A pair of spectacles ________ what I need at the moment.
①  is
②  are
③  has
④  have
【单选题】 Well go for a picnic if it ________tomorrow.
①  isnt going to rain
②  wont rain
③  doesnt rain
④  isnt raining
【单选题】 He asked the waiter ________ the bill.
①  on
②  of
③  for
④  after
【单选题】 I forgot to return the book to you yesterday. So I _____________today.
①  might do it
②  must do it
③  had to do it
④  must have to do it
【单选题】 She wonders ____will happen to her private life in the future.
①  that
②  it
③  this
④  what