（5）金属资源的保护——2021-2022学年九年级下册化学人教版金属材料专题速练
※题型：单选题※知识点：单选题※试题难度：较易<br>空气中含①<img src="https://picture2.zhihuicn.com/testImage/2/2020/12/7/D350503FAEB172B50F09D85EB5C5B0A3.png"><br>②<img src="https://picture2.zhihuicn.com/testImage/2/2020/12/7/43916A0CBDACF639905BC5CD89370C97.png"><br>③稀有气体④水蒸气等成分,其中与钢铁生锈有关的是( )<br>A.①③ B.②④ C.③④ D.①④<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/46b85b3641864e9293a1c3b4da1249cf/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/9ea4a0cc624845b795b7d5a5eb3ba76c/ACC03420897009A569E8E5740E2ED0C1.png"><br><br>※题型：单选题※知识点：单选题※试题难度：容易<br>下列4支试管中,铁钉锈蚀最快的是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2020/12/7/3A259855709D0854E4295349D77FA963.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2020/12/7/321987C41FED734EA875C4A92CD10F70.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2020/12/7/D5E416FAC5FFFFC46472491B2AD1801E.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2020/12/7/C1FBE9F02B6C203077199BABC399F4F6.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/76c6d4f853cd4f2aae6842494f2080fb/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/ce212b0eadfc420b89dddcefffec5117/DA62EFA2510C2B260464EC293C24E35E.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>线上学习,居家实验。小明用三枚洁净无锈的铁钉,设计如图所示实验,探究铁生锈的条件。下列说法错误的是( )<img src="https://picture2.zhihuicn.com/testImage/2/2020/12/7/A94A2979DC5F3DE17F00D0960B7EF9CC.png"><br>A.乙试管中植物油的作用是隔绝空气<br>B.只有甲试管中的铁钉有明显锈迹<br>C.乙、丙两支试管的实验现象说明铁生锈需要水<br>D.实验表明铁生锈是铁与空气和水共同作用的结果<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/5939ada13eed47f1be8a8ccdaba69e9c/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/d4bf34cf899546dfbabf6c9f0ee915db/2A0332141134724BFDA794614644A314.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>探究铁生锈的条件,有利于寻找防止铁制品锈蚀的方法。下列对比实验设计与所探究的条件(蒸馏水经煮沸并迅速冷却),对应关系正确的是( )<br><img src="https://picture2.zhihuicn.com/testImage/2/2020/12/7/1F88AFCEA3C1BE7CA43CEA7F388E9A97.png"><br>A.甲和乙:水 B.乙和丙:空气 C.甲和内:空气 D.甲和丁:水<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/08bcfa3fd8514afdb4d9032d988abdc9/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/1150d2133bec4873b69b7b28e94f7ab7/E5B5C344433514ABF3C8CA62F235C32D.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>为防止铁制品锈蚀,下列做法不恰当的是( )<br>A.车船表面喷漆 B.铁制品表面镀锌<br>C.制成不锈钢 D.用洗涤剂洗净铁制品表面的油膜<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/dbfa6da5d2904e11b8118b492d0aeab4/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/d1c4b7fdc07f4904ac9a4351988933c2/AF4E8EAE936CC057FD9099A5B5E4E2F5.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>世界每年因锈蚀而损失的金属数量巨大,防止金属锈蚀已成为科学研究中的重大问题。下列有关说法不正确的是( )<br>A.铁锈蚀的实质是铁与空气中的氧气、水蒸气等发生了化学变化<br>B.同样的铁制品在潮湿多雨的西南地区比在北方干燥地区更易锈蚀<br>C.在铁表面刷油漆可以防止铁锈蚀<br>D.铁生锈,产生的铁锈能阻止铁继续被锈蚀<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/ea2264ac32214dae8baacb1c4cad10c1/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/da6c34435fc04ae7a8084550ca661a90/EA5D041760384EC6F13E04E25F39391E.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>某同学根据铜绿的成分<img src="https://picture2.zhihuicn.com/testImage/2/2020/12/7/53EF1AB03C3F0B44563A5701F8F83E14.png"><br>作出猜想:金属铜锈蚀的条件除有氧气和水外,还必须有二氧化碳。为证明“必须有二氧化碳”,需要进行下图所示实验中的( )<img src="https://picture2.zhihuicn.com/testImage/2/2020/12/7/EF7291FE315F80E7580511AA030169E9.png"><br>A.甲和乙 B.甲和丁 C.乙和丁 D.丙和丁<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/713c5ac5e878428585e91535eb07d408/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/d96f4620abba407db22c5c3d94991909/28DF7F290CD0C3E19924EF4A84F45392.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>下列有关金属资源的利用与防护不合理的是( )<br>A.经常用钢丝球擦洗铝锅表面,保持洁净<br>B.在钢铁表面喷油漆可防止生锈<br>C.废旧金属的回收利用,保护金属资源的有效途径之一<br>D.改变金属的组成和结构,铸造成合金材料可优化其性能<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/07d58c00378f414c8c4faa52196a83ed/DA50F910BECBBBA4AAB35D7A1AB24524.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/0ff6d4129cf24b9c987ba683e484cf43/7291453DF36C621DCC9C9743F5B05D1F.png"><br><br>
页:
[1]