2.4酸碱中和反应—2021-2022学年化学鲁教版（五四制）九年级全一册随堂小测
※题型：单选题※知识点：单选题※试题难度：中等<br>辣椒中含有辣椒碱,易使切辣椒的手产生火辣痛感,为缓解疼痛可在皮肤上涂抹的物质是( )<br>A.牙膏 B.肥皂水 C.食醋 D.食盐水<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/d5105c3852e74585b79ab73445d92edd/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/c37eb2ded6a340af9676525492fcfd3d/F9E1C45C2D478580CC1E20EF810FF29D.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>下列反应属于中和反应的是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2021/3/5/6FC286C7161480777AB2F8288798B688.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2021/3/5/5F2EBD6C564BAB4CB2154B697EE868EF.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2021/3/5/810A9BE91EF9B00EC6FE8405E593F983.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2021/3/5/7829281CCE76D31576E3A7AF41BCBFB1.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/99bd1aa0ae8b40bab93e34320c26ed73/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/140567a7e2ff4c87bd32c24f4db9b3cc/632799791EDB588CC6A8139DCDD263D1.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>某锥形瓶中装有稀盐酸。向稀盐酸中逐滴加入NaOH溶液,并不断振荡。下图中能正确表示锥形瓶中溶液pH变化情况的是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2021/3/5/527CA5A1B880C66038106A0DC5D5E425.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2021/3/5/EB1315D5F1D0E96DB36362E452B10EEB.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2021/3/5/7A5474DC41CCCBFF044445370E2DF264.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2021/3/5/9C8CA054FCF481D741CEA011EF06F079.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/6afaa19146144e61b72f9fecf993b8a7/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/2b3a1362ba014fb1a6d1c39fa0c73ffe/217B1C3CAE42393479361823DBCE3796.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>如图一所示为稀盐酸和氢氧化钠溶液反应的实验操作,图二为反应过程中烧杯内溶液pH的变化曲线。下列说法不正确的是( )<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/25/EF7149121A9429F14271685D2C7FAA2B.png"><br>A.胶头滴管中所取的溶液为氢氧化钠溶液<br>B.b点表示溶液中氢氧化钠和盐酸恰好完全反应<br>C.a点表示<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/25/8DB170136294345756639DAE736C3D59.png"><br>溶液能使酚酞溶液变红<br>D.c点表示的溶液中溶质是NaCl和HCl<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/e73daaa46d9f46aeaf9ac636a28ad7d1/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br>略<br>※题型：问答题※知识点：问答题※试题难度：中等<br>盐酸与氢氧化钠溶液反应时,溶液<br>pH<br>的变化如下图所示。<br><img src="https://picture2.zhihuicn.com/testImage/2/2021/4/25/D0264864B93F3D3926BDE412A591046A.png"><br>1.图中横轴表示哪种溶液的体积?<br>2.P点对应溶液中的溶质成分是什么?<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/6356fd5baf0543ef88fbea3502a4caaa/6068BAC016729D9A764ACC80B3EB12F6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/aa711ae7da894190b2d571a69ac0d416/DB0B7ECAFE5B373D7F9C82F5BA1E336F.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>某种消化药片的有效成分氢氧化镁,能减缓因胃酸过多引起的疼痛。在氢氧化镁与胃酸作用的过程中,胃液pH变化的情况是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2021/3/30/5EBCA9EF9DBE3BB3418CB562DA74F204.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2021/3/30/7F57A7D22098F2623BD905949D0B1507.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2021/3/30/AE8A9939014B8DEA4E6118AF96962B28.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2021/3/30/63E845B415D7EF45820CDFD1CE28FD1F.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/78530642da424be2886eaed3e7cbe989/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/e7217b3a2c91467a80023300418f8740/8149E0E898AB6656B7B5942C36CBFF66.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>食品卫生安全关系到千家万户。用碱性溶液浸泡蔬菜能有效除去蔬菜中的残留农药,从而降低对人体的损害,学校食堂从市场上买回来的蔬菜,你认为应浸泡在( )<br>A.食盐溶液中 B.烧碱溶液中 C.纯碱溶液中 D.食醋中<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/5a06123d920544f780133928a5dd7317/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/f3b999ce6ca14998bfbec9637ee2c1f0/4B8B67962177A28E1762376FE768A3EC.png"><br><br>
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