江苏省扬州市高邮2020届初三一模化学试卷
※题型：单选题※知识点：单选题※试题难度：较易<br>下列不属于合成材料的是( )<br>A.聚氯乙烯 B.有机玻璃 C.镁铝合金 D.合成橡胶<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/289103033bca4e0db02a553d2e7f2f45/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/78719e26110740a6af30b05074c5eb5d/4DF0D5EBFD6D77F80FFA599C2CFCF5E0.png"><br><br>※题型：单选题※知识点：单选题※试题难度：容易<br>下列物质可用作复合肥的是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2021/3/31/F71EB1AC8A17C3FCD5745081E221E174.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2021/3/31/B90E8387C03EBA3876DAFDC61F8919A9.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2021/3/31/128F55B144935C78E07F02CFC2D09193.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2021/3/31/2C99E65DA0F2DAE2B5001FEE0B20F410.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/bc2d87e6cd2c45409f174ece091dffa9/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br>略<br>※题型：单选题※知识点：单选题※试题难度：容易<br>践行“习近平生态文明思想”,我县积极推广垃圾分类和回收利用,易拉罐应投放的垃圾桶是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2020/12/24/C31C3F1E2ADF22D0651C4C75B4B349A9.png"><br>可回收垃圾<br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2020/12/24/68329E77B3065BE5AAC504012A83ABD5.png"><br>其他垃圾<br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2020/12/24/A7544FC22198C6CB68509BB204702EAF.png"><br>厨余垃圾<br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2020/12/24/5B8DD6C65B542E2A6A187197058572BA.png"><br>有害垃圾<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/182e1d07ea114af8bcfc74102feb532f/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/7fd34651083643febf57704eef58c728/90D7EACBFD046D430CB3A0928F3A9799.png"><br><br>※题型：实验题※知识点：实验题※试题难度：中等<br>我国煤炭资源丰富。目前人们除了将煤作为燃料外,更关注煤化工技术。工以煤和空气为原料生产尿素<br><img src="https://picture2.zhihuicn.com/testImage/2/2021/3/31/1C91E40014C0DC46C6E4D713301BE903.png"><br>的一种流程如下:<br><img src="https://picture2.zhihuicn.com/testImage/2/2021/3/31/4C56E8C7FCE36B30091A0A39E1832D3D.png"><br>1.从液态空气中分离出<img src="https://picture2.zhihuicn.com/testImage/2/2021/3/31/FFADA5F19AA4D4614F9C6B59C27E9FFB.png"><br>的过程属于___________________(填“物理”或“化学”)变化。<br>2.在煤和水蒸气反应前需先将煤粉碎,这样做的目的是___________________。3.煤气在铜催化下实现CO的转化:<img src="https://picture2.zhihuicn.com/testImage/2/2021/3/31/6AECDFACE5432432D4C03A8FB0B644F1.png"><br>,其中X的化学式为___________________4.上述流程中,在一定条件下合成尿素的同时还有水生成,该反应的化学方程式为___________________5.实际生产中,反应不可能完全进行。上述流程中可以循环利用的物质有6.合成的尿素<img src="https://picture2.zhihuicn.com/testImage/2/2021/3/31/1C91E40014C0DC46C6E4D713301BE903.png"><br>是重要的化学肥料,区分尿素与硫酸铵<img src="https://picture2.zhihuicn.com/testImage/2/2021/3/31/57D32BE9604D5BF6090A01DE097188F3.png"><br>可进行以下操作分别取样于试管中,加入氢氧化钠溶液并加热,在试管口放一张湿润的___________________色石蕊试纸,观察颜色变化。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/10125cdb53d5419bafe6dab40d777088/646B630D15BAD5CF7ED2C3F86B09930B.png"><br>解析<br>略<br>
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