2021-2022学年九年级上册化学鲁教版常考实验小练（7）实验室制取氧气
※题型：单选题※知识点：单选题※试题难度：中等<br>实验室用氯酸钾固体(二氧化锰作催化剂)制取氧气,下列装置组合正确的是( )<img src="https://picture2.zhihuicn.com/testImage/2/2021/5/6/C6F240433EB97AC9A24477013B6C809E.png"><br>A.①③ B.①⑤ C.②③ D.②④<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/81a6889b3dfa4d3fbcefd6053fcf0470/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/7de8020c9f254e4990e28ba2d1e7ee85/F23702B6E2BEF6B1F50C8D36FAF79D4F.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>将氯酸钾、二氧化锰、高锰酸钾的混合物装入试管充分加热,直到不再产生气体为止,反应后试管中残渣物质有( )<br>A.1种 B.2种 C.3种 D.4种<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/f45e1c8452064c03bd092b84ff82abfe/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/96323fc4243943eb8956bc93a9a8666d/8B8FF8812A33DC48313725005EAA8C90.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>质量相等的两份药品甲和乙,其中甲为纯净的氯酸钾,乙为氯酸钾与二氧化锰的混合物。分别放在酒精灯上均匀加热,收集到氧气的总质量<br>m<br>(纵坐标)随加热时间<br>t<br>(横坐标)的变化的函数图象正确的是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/15/0E1A220A58940B89C0ACD3F040A738EE.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/15/7BF44984F090ED4F57058F72FB91CD6C.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/15/21F168D02CCD52ED08169F5BD5F06829.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/15/C428B1784F16F3F42AD1F783F646BF57.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/f74e1433ee8c40c7b334acf54d4b75fb/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/fdc7a4abcda9452fbe926373aa89b629/C0836C084C6FFFEEF8A145592F34EC72.png"><br><br>
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