6.1燃烧与灭火—2021-2022学年化学鲁教版九年级上册随堂小测
※题型：单选题※知识点：单选题※试题难度：容易<br>用化学知识解释成语“釜底抽薪”的说法中,合理的是( )<br>A.清除可燃物<br>B.隔绝空气<br>C.使可燃物的温度降低到着火点以下<br>D.降低可燃物的着火点<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/2aa7bbeb72e74e64b6e3175eb9eb0ded/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br>略<br>※题型：单选题※知识点：单选题※试题难度：较易<br>在露营篝火晚会上,小东发现篝火的木柴堆积密集,火焰很小,于是将木柴架空,主要目的是( )<br>A.方便添加木柴 B.升高木柴的着火点<br>C.增大氧气的浓度 D.增大木柴与空气的接触面积<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/94f933f271064a0290202433866842ed/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br>略<br>※题型：单选题※知识点：单选题※试题难度：较易<br>下列气体与空气混合后遇明火,可能发生爆炸的是( )<br>A.氮气 B.氢气 C.氦气 D.二氧化碳<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2019/fe224dc49f544af4ad32b560d0ddd639/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2019/ac0680d554b4406e9cdb1647d0401d64/21D5D5C10C75D358AF83A14F3A013D9E.png"><br><br>※题型：单选题※知识点：单选题※试题难度：容易<br>了解防灾减灾的相关知识,有利于保护人们的生命财产安全。下图图标属于严禁烟火的是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/9/F5B57B120FA77599C516244EFB057E11.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/9/CC76EAF7C4BD9469690027D9FECA132B.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/9/CD86D44484A2D5BF35F4D8FD71956626.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/9/55F9E42D994CB3FF94328A7857ED66C8.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/3212ed713fd6490f8aa1da9ed5824d94/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br>略<br>※题型：单选题※知识点：单选题※试题难度：较易<br>下列实验中,能证明燃烧需要氧气的是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/9/93E32CC58BCABD0E701BE2F59EC1205C.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/9/B19CFAD0437FBC83C6E106FB5F20892E.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/9/8DAD9E309327B1836045CCA09D4F57F6.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/9/27BC7B9EECABE59BC4B86D92D6362472.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/673b7f99250049dd8d28c20c794117c6/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/8fced8f9a61b4843ab023ba10bf3387e/290BC7DEE256F565FCA881327998101C.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>据报导,某地举办“彩色派对”时,向点满各色蜡烛的场景中抛撒面粉,结果引发爆炸。面粉抛撒在空气中遇火能引起爆炸的原因是( )<br>A.面粉是制作炸药的原料<br>B.面粉在空气中急速燃烧<br>C.面粉着火点高引起爆炸<br>D.面粉在空气中遇火迅速分解<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/ecf8fd00c49d44c0a6dc674d5f6a42c5/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/42df55dbc1514b648d2b28462e0f20ab/BE1792555CF64FB4182ED711F4097422.png"><br><br>※题型：填空题※知识点：填空题※试题难度：容易<br>控制变量法是化学学习常用的方法,如图是探究燃烧条件的实验<br>.<br>请根据图示信息和资料信息回答有关问题<br>(<br>已知物质的着火点:白磷为<br>40℃<br>,红磷为<br>240℃)<br><img src="https://picture2.zhihuicn.com/testImage/2/2021/7/6/00D30ECD87D7D1ED3DFEEC867FEC038D.png"><br>1.铜片上的红磷不燃烧,是因为______。2.如要让水中的白磷燃烧,应采取的措施是______。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/5782bce3cb904eb89b2d20bbc3e0acfb/8917C3DB9963446527AE90B006CD1B5C.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/d6925fd8a1cb447da0b44dea4e245e43/10C20C5C9277226083C06E274B44E66A.png"><br><br>
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