2021届中考化学曲线图像大作战（一）氧气的制取图像
※题型：单选题※知识点：单选题※试题难度：较易<br>用双氧水和<img src="https://picture2.zhihuicn.com/testImage/2/2020/9/27/C593AB7E8C703062DFA5ED884F267FE4.png"><br>混合制氧气时,反应中<img src="https://picture2.zhihuicn.com/testImage/2/2020/9/27/C593AB7E8C703062DFA5ED884F267FE4.png"><br>在混合物中的质量分数(a%)随时间(t)变化的图象正确的是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2020/9/27/6597B5B48AEAC22584C33A9E6FF4B8F5.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2020/9/27/DBBA736EE0DA4B9125C85C17413EDE05.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2020/9/27/86DC82E5123E0EECD2CB9865F2B838CE.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2020/9/27/B17249A754F4C588DA812A79DB59F661.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/b8e81479b9094d69874fa3a5d6c6f42a/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/a45f47c5dd0b4166a9a92d055680f0bd/792E00C9923D7FF57DE662AB7844EBFB.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>在双氧水制氧气实验中,某些变量与时间的变化关系如图所示,图中纵坐标y可以表示的变量是( )<img src="https://picture2.zhihuicn.com/testImage/2/2021/1/25/C3A8E44E1D2D55642FE6F7DE04D968AF.png"><br>A.氢元素质量 B.氧元素质量 C.水的质量 D.氧气质量<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/e4d0bd1ad36c41bea82b807528621e6b/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br>略<br>※题型：单选题※知识点：单选题※试题难度：中等<br>对一定量氯酸钾和二氧化锰的混合物加热,下列图像能正确表示对应变化关系的是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2020/10/19/3DC5B6C1C868466E2314D1ABCF4D5755.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2020/10/19/BB8DA46DFF8DB6B6466754468F9528F3.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2020/10/19/EBA34FC9B9D4FF097F2FD5B93676E9B3.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2020/10/19/39E214AC25D8DC9BDBB603ACCF29E477.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/73843eef45544a3296a0856d803d2c49/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/df09b2daca8040018a2cbe3dcffbe355/8D9EC10D61305D4C1A59FC6DC4443F93.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>在实验室用高锰酸钾制取氧气的过程中,下列图象能正确表示对应变化关系的是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2021/3/5/3714B25FF7753DDC84E216B6A91842A7.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2021/3/5/388A5EB829CD9DA28D5D3E1A03FCA909.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2021/3/5/47739331FE95BF4DE3E51E7AD2C218BD.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2021/3/5/06E654139C840CB612462BD4278A77FF.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/7eb7bdf9e7e34e5782bbda808e1537aa/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/4890c03cfe2e427eb5ff821d19607a9c/8E8FE0A6A6AD6BA92BFCE794B61D5217.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>已知,<img src="https://picture2.zhihuicn.com/testImage/2/2020/12/29/8C50DCF6307E3E48AFED04FCF82F504A.png"><br>,如图表示一定质量的<img src="https://picture2.zhihuicn.com/testImage/2/2020/12/29/1B1732345E93B85DB537C668FAEC6110.png"><br>和<img src="https://picture2.zhihuicn.com/testImage/2/2020/12/29/C593AB7E8C703062DFA5ED884F267FE4.png"><br>固体混合物受热过程中,某变量y随时间的变化趋势,纵坐标表示的是( ) <img src="https://picture2.zhihuicn.com/testImage/2/2020/12/29/67E806D18BF610110A50E25C86726E05.png"><br>A.固体中氧元素的质量<br>B.生成<img src="https://picture2.zhihuicn.com/testImage/2/2020/12/29/43916A0CBDACF639905BC5CD89370C97.png"><br>的质量<br>C.固体中<img src="https://picture2.zhihuicn.com/testImage/2/2020/12/29/C593AB7E8C703062DFA5ED884F267FE4.png"><br>的质量<br>D.固体中钾元素的质量分数<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/a4b621a50c734f128de9f2f32eda3923/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/00a7662436af4aa09d5e6d1548e5fdae/B9B2729798A2F3F5F3C49A4FABC1C5D8.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>实验室加热一定质量的高锰酸钾制取氧气,随着反应的进行,试管内固体的质量逐渐减少。图中各点表示的含义错误的是( )<imgA.a点表示高锰酸钾的质量<br>B.b点表示高锰酸钾、锰酸钾和二氧化锰混合物的质量<br>C.c点表示生成二氧化锰的质量<br>D.d点表示高锰酸钾完全分解了<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/18c597f66dd946748e6be89296186c20/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/2723e3db1daf41d9ac54cf88ffa3d50c/09E0124FF9E820814FC90632A6A60CFF.png"><br><br>※题型：多选题※知识点：多选题※试题难度：中等<br>下列图表能正确反映实验过程中量的变化关系的( )<br>A.氯酸钾和二氧化锰混合加热制氧气<img src="https://picture2.zhihuicn.com/testImage/2/2021/1/28/651B5B01515B43C805218E84FFECCE61.png"><br>B.高锰酸钾固体加热制氧气<img src="https://picture2.zhihuicn.com/testImage/2/2021/1/28/10CA85E4ED7AA884218C0A11F74C53DD.png"><br>C.氯酸钾加热制氧气<img src="https://picture2.zhihuicn.com/testImage/2/2021/1/28/71DE78243E48784421FC6480D26A059C.png"><br>D.高锰酸钾固体加热制氧气<img src="https://picture2.zhihuicn.com/testImage/2/2021/1/28/56D9B98BBE2197D5191AE74A5CFAB9DE.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/96879c28d4614beab2449ae99e4c23a6/4D602B79606E3B65829E8D0313A702E6.png"><br>解析<br>略<br>※题型：单选题※知识点：单选题※试题难度：中等<br>对资料或实验证据的分析是否正确,直接关系到科学探究是否符合客观事实。下图为实验室用等质量的高锰酸钾和氯酸钾(另加少量的二氧化锰),分别制取氧气的数据分析示意图。下列依据图示信息所得出的分析正确的是( )<img src="https://picture2.zhihuicn.com/testImage/2/2019/3/19/A4450492CC2FD3A2784975967BC125F5.png"><br>A.同时开始加热,先收集到氧气的是氯酸钾<br>B.用相同容积的试管制取较多量的氧气时,宜选择氯酸钾为原料<br>C.加入少量的二氧化锰使氯酸钾产生的氧气质量增加<br>D.反应时间较长的是高锰酸钾<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2019/65e46429846046bba0e800a5758cf999/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2019/6ce84cdc0985416ca220355db710b6a3/7A7BF9C4C77BA01EE45342B61879FE9F.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>在试管甲和试管乙中放入等质量的氯酸钾,然后在试管甲中加入一定量的二氧化锰,分别加热至充分反应,下图对该实验产生气体的质量与反应时间的关系,描述合理的是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2020/12/25/67A57D498E617A121FBAEDCF8709853D.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2020/12/25/D2CD86AF0DE1944813078830134710A6.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2020/12/25/1CA7BB809D309EFA4006639A9A4B4EA2.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2020/12/25/619DE06D672C8F17BD71305AC4C4B020.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/85eaa36302474344b6d597011914a5c5/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/f8c45a82fd314d628bdc96415d9fd326/8BC78CA0572804356C6368B679301380.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>现有两份等质量的固体,其中a试管中是纯净的氯酸钾,b试管中是氯酸钾和少量二氧化锰的混合物,分别在酒精灯上加热米制取氧气,当完全反应后,能正确表示a、b两试管中放出氧气的质量与反应时间关系的图像是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2020/9/10/93789FFB9000B7F24793AEB7B60F6AFD.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2020/9/10/EE4EC666ABDB643085818C4AF1C0ADAE.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2020/9/10/9AF0135F720D3E1FD61C6F1C7F79F5B8.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2020/9/10/54E02C15FF72528B6293FFB1793CF639.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/8562313cafac42a8b31d28377081df5d/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/4a18aa3109744538ac1ce67fb8595496/8E65304E7EC866C9CD5D46EACBCA4F77.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>实验室常用加热高锰酸钾固体制取氧气,现对一定量的高锰酸钾固体进行加热,加热过程中涉及的相关量随反应时间变化的图象正确的是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2020/12/11/0CBA6F2DE22A58CC224BCDB9FB106A86.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2020/12/11/7C9834F2B45969A0D5951BB1187DA3D3.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2020/12/11/051278275361B2DE76C81A9322D4DE41.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2020/12/11/ADB9C1F25C4136F61D0F48788D12181F.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/9e287c233dca4e0e92a1d2afbb1f7ffc/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/f14654b200ba4ace833fc6604e2b38a7/369C8FF2258CCC13F9E444A3BD0BD413.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>实验室加热氯酸钾和二氧化锰的混合物制取氧气,下列选项与图像相符的是( )<img src="https://picture2.zhihuicn.com/testImage/2/2020/12/17/F2C474326D5DBC81032AF9A7C1B92255.png"><br>A.氯酸钾的质量 B.氯化钾的质量<br>C.二氧化锰的质量 D.固体中钾元素的质量分数<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/1b8a64bf922b4b3693f566e36f2894f0/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/31920375b1774229ac0e731f6b4037a2/384F84B2FE3A8DA532E7AD29D3576645.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>甲、乙两份等质量的氯酸钾,向甲中加入少量的高锰酸钾,乙中不加任何物质,均加热至不再产生气体为止。下列图像与实验事实相符的是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2020/9/30/BEEE95E259E4A79AB95BBA082A8D414F.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2020/9/30/EE861CB943F842E26442286EF7E86B28.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2020/9/30/18586B7DDF2A8574B8E8D14C565B8FC4.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2020/9/30/2FE134B0687168ACC084442F2DD66BC8.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/7b3b2edf719e48a2a56b2e5b5e79f0c5/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/530a60575cce4887935042545e94c86b/9A96F5B5D76006168EE821ED201D0755.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>某同学误将少量<img src="https://picture2.zhihuicn.com/testImage/2/2020/12/24/F2521B065EC1360AB85D62BB33AE9C5F.png"><br>当成<img src="https://picture2.zhihuicn.com/testImage/2/2020/12/24/C593AB7E8C703062DFA5ED884F267FE4.png"><br>加入<img src="https://picture2.zhihuicn.com/testImage/2/2020/12/24/1B1732345E93B85DB537C668FAEC6110.png"><br>中进行加热制取氧气,部分物质质量随时间变化如图所示,下列关于该过程的说法正确的是( )<img src="https://picture2.zhihuicn.com/testImage/2/2020/12/24/0881868A06F708ADF5CD18A1BFFBE953.png"><br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2020/12/24/5B5BBD086DE07CDC64183E7B681339E5.png"><br>时刻,<img src="https://picture2.zhihuicn.com/testImage/2/2020/12/24/43916A0CBDACF639905BC5CD89370C97.png"><br>开始产生<br>B.c代表<img src="https://picture2.zhihuicn.com/testImage/2/2020/12/24/43916A0CBDACF639905BC5CD89370C97.png"><br>C.a代表<img src="https://picture2.zhihuicn.com/testImage/2/2020/12/24/1B1732345E93B85DB537C668FAEC6110.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2020/12/24/5B5BBD086DE07CDC64183E7B681339E5.png"><br>时刻,<img src="https://picture2.zhihuicn.com/testImage/2/2020/12/24/F2521B065EC1360AB85D62BB33AE9C5F.png"><br>开始分解<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/b0c7b2af92f840c588bc43c6b31fff7c/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/d12316db62934ca5a1e28289cf563d52/3D731A6B3FE5FCD3ED69CE72953054C7.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列四种叙述均用如图表示,其中对应说法正确的是( )<img src="https://picture2.zhihuicn.com/testImage/2/2020/10/13/91E80E32FD4E78609CC8C7C789001415.png"><br>A.图表示向过氧化氢溶液加入少量的<img src="https://picture2.zhihuicn.com/testImage/2/2020/10/13/19DB00263A67B64F8C686CD794139E8F.png"><br>反应过程中生成<img src="https://picture2.zhihuicn.com/testImage/2/2020/10/13/CE3FB2E68B350B28E5B76D176FE3FE33.png"><br>的质量与时间关系<br>B.图表示向过氧化氢溶液(含水)加入少量的<img src="https://picture2.zhihuicn.com/testImage/2/2020/10/13/19DB00263A67B64F8C686CD794139E8F.png"><br>反应过程中溶液中水的质量与时间关系<br>C.图表示一定量<img src="https://picture2.zhihuicn.com/testImage/2/2020/10/13/132CE5A4221DCE8F26C90950FF673643.png"><br>加热制<img src="https://picture2.zhihuicn.com/testImage/2/2020/10/13/CE3FB2E68B350B28E5B76D176FE3FE33.png"><br>过程中,残留固体中<img src="https://picture2.zhihuicn.com/testImage/2/2020/10/13/19DB00263A67B64F8C686CD794139E8F.png"><br>的质量与时间的关系<br>D.图表示加热双氧水和二氧化锰制备氧气的反应过程中<img src="https://picture2.zhihuicn.com/testImage/2/2020/10/13/19DB00263A67B64F8C686CD794139E8F.png"><br>的质量变化关系<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/0936c57cf0dd45c09183823a742bbecf/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/f6c961870ccb4e4298de16412cb07323/00900FBE3D4D5956688B74F509CDD9D8.png"><br><br>
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