（20）二氧化碳和一氧化碳—2021-2022学年化学人教版九年级上册同步课时作业
※题型：单选题※知识点：单选题※试题难度：容易<br>2019年世界湿地日的主题是湿地应对气候变化。下列气体不会引起温室效应的是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2021/4/12/1E2B315962D7AFB9356B2F2B159D094F.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2021/4/12/7002435560602C62060BA723DC55D86C.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2021/4/12/5AE69F147234DF32EF5E64E5C6878C8F.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2021/4/12/D4C5BB6900DD1B4D2198380F5830F64C.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/0dc0e7d108ee49478e45d25de4fda11e/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/f13a900209604157aa494e2635124f31/BA2007AB17F87157A3AD9E368A696EAB.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>在大气层中,因<img src="https://picture2.zhihuicn.com/testImage/2/2021/3/11/3AB34B1B8224706C6E4369A324ED490A.png"><br>的含量不断增加而引起“温室效应”,造成大气中<img src="https://picture2.zhihuicn.com/testImage/2/2021/3/11/3AB34B1B8224706C6E4369A324ED490A.png"><br>含量增加的主要原因是( )<br>A.由于动植物呼吸作用增加<br>B.由实验室逸出的<img src="https://picture2.zhihuicn.com/testImage/2/2021/3/11/3AB34B1B8224706C6E4369A324ED490A.png"><br>增加<br>C.由于森林绿化面积迅速递减,使得自然界吸收<img src="https://picture2.zhihuicn.com/testImage/2/2021/3/11/3AB34B1B8224706C6E4369A324ED490A.png"><br>的能力降低<br>D.由于大量燃烧含碳燃料<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/d0c586ced6da483b8751d5529f4c5ef6/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/55a44891f27e4e8b8b3886b23ab2ba99/A1F9EA6B3A2290ECD031FB0A00868B22.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>如图为CO还原CuO微型实验装置(夹持仪器等已省略),已知<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/8/FEB3291414087ECAEF07C0BFA30135A3.png"><br>。下列说法错误的是( )<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/8/9E4553194EF4E2797AC463C59811B216.png"><br>A.实验中所需CO可现制现用<br>B.此装置可节约药品,污染小,现象明显<br>C.此装置内空间较小,空气易排空,实验危险系数小<br>D.CO还原CuO,反应前后各元素的化合价都发生了变化<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/aef5823cfe854261b17560384e6ea5de/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/d2d75a09bfaf4506b03f4bea306da2f6/5E6A1FB23D39AAE4B1EE6C70E22ECF26.png"><br><br>※题型：实验题※知识点：实验题※试题难度：中等<br>下图为实验室模拟制铜的实验改进装置。<br><img src="https://picture2.zhihuicn.com/testImage/2/2021/4/12/3095D566BD97E9EDACB920FF167831F6.png"><br>1.实验开始时应先__________(填标号)。a通一氧化碳b点燃酒精灯2.实验中可看到A中玻璃管内的现象是__________,该反应的化学方程式为_____________。3.B的作用是:一是检验A中反应的气体生成物,B中反应的化学方程式为_______。二是_________。4.反应结末后,取C中药品少许于试管中加足量稀盐酸,有气泡产生,产生气泡的化学方程式为_______________。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/0e95276adfcc42aca8887c63f7ff66b9/D1FD38D5E230DB97B057A93D047053D5.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/24fe918afc0a493b9d7e62172aaea541/89A39CA35774511287BDFC7653F3DA9D.png"><br><br>
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