（4）走进化学实验室—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>下列化学仪器对应的名称书写正确的是( )<br>A.长劲漏斗<img src="https://picture2.zhihuicn.com/testImage/2/2021/5/31/5FF866C44288C02A253B0E6FFFEEB01C.png"><br>B.量桶<img src="https://picture2.zhihuicn.com/testImage/2/2021/5/31/C8B776ABB955A7CB510983466B532C70.png"><br>C.坩埚钳<img src="https://picture2.zhihuicn.com/testImage/2/2021/5/31/D8434636F40D2FA05C378D01AECEFA88.png"><br>D.椎形瓶<img src="https://picture2.zhihuicn.com/testImage/2/2021/5/31/7F6913731B50C0280B26A343A0F11086.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/7af3f8934d674afd81eb975a3ba84c34/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/34571b166bf34ab6bd1535d6b642d0e1/4B82BB7DD4F8042273C1A38F0D1BA950.png"><br><br>※题型：单选题※知识点：单选题※试题难度：容易<br>化学实验是学习化学知识的重要途径。为保证实验安全和取得预期实验效果,每位同学必须严格遵守实验规则。下列做法错误的是( )<br>A.不在实验室内饮食、打闹和大声喧哗<br>B.实验时,易燃、易爆品要远离火源<br>C.使用腐蚀性药品时要特别小心,不要沾在衣物和皮肤上<br>D.为了节约,将用剩的药品放回原瓶<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/7c12deb5502c40dabdd061e05e7aeca1/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/925304bd8fee4b43afe74283fbeecc61/CAF3DB5B5F3B938C612FC6E5BDEA471C.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>加热是最常见的反应条件,这一基本实验操作常要使用酒精灯。下列有关说法错误的是( )<br>A.为了使酒精灯燃烧更旺,将灯内酒精添满,以增加可燃物<br>B.酒精灯里的酒精洒到桌面上燃烧起来,可用湿抹布盖灭<br>C.用完酒精灯后用灯帽盖灭,其灭火原理是隔绝氧气<br>D.用燃着的木条点燃酒精灯,燃着的木条的作用是使温度达到可燃物的着火点<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/7d97990cc29e47749324c0a9f33e206a/E7F0EDF83F40244C8F0C84B97471AED6.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>如图有关酒精灯的使用方法中正确的是( )<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/18/C58E0E12D988978D23D2920752FE045B.png"><br>A.①③ B.②④ C.②③ D.③④<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/86fd22fca95d42289e9da693ab36033d/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/2c2b5959e31543a9a7bec527cffb63a5/277681F44E95D2C4008DC087B5B1FFCE.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>玻璃仪器洗涤干净的标准是( )<br>A.冲洗时倒出的水是无色透明的<br>B.仪器内壁看不到污物,呈无色透明状<br>C.仪器内壁的水是晶莹透亮的水滴<br>D.仪器内壁的水既不聚成水滴,也不成股流下<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/5398f22f49884f2383907bf333cfac19/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/475964113a494ed5bf105ad65f00b4a2/07D424EBA539560A24E75CBD90B965FE.png"><br><br>※题型：单选题※知识点：单选题※试题难度：容易<br>下列关于药品的取用操作不正确的是( )<br>A.取用粉末状固体药品应用药匙<br>B.取用较大块或颗粒状固体药品应用镊子<br>C.实验未说明用量时,液体一般取1~2mL,固体只需盖满试管底部即可<br>D.随意丢弃实验剩余的药品<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/fd46a4c7cf4a47e28acaaff27171c5c2/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/22a2019ad5b9405a8318a274804b1def/7D70809C0B0DE968EEEA70A956348664.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>下列实验操作不正确的是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/11/5BCAF2FA782E65104E9E8384E24CED7F.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/11/C44237639087A5AF046853C92BCC6536.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/11/5BDDE037F60957C45D5D73A36F156BED.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/11/8BCF7F49DEA7EA90DC04126C0213DA42.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/378eb6ac919e4ba5893b8a0592c6d803/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/f1b80f42aec64484b84f60a329f119d4/740F1B83C9AA113B2FD6197730273CEA.png"><br><br>※题型：单选题※知识点：单选题※试题难度：容易<br>小明欲用托盘天平称量食盐的质量,调节托盘天平平衡后,在称量过程中发现指针向右偏转,此时正确的操作是( )<br>A.向左盘添加药品 B.向右移动游码<br>C.向左调节平衡螺母 D.减少右盘砝码<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/9cef93167a8e465593a3f481275875e8/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/af15f65db5a6491089124088f3c14c66/343910511AAB11A983F326CB7B0590B1.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>化学是一门以实验为基础的科学。下列实验操作正确的是( )<br>A.少量的酒精洒在桌面上燃烧起来,应立即用湿抹布扑盖<br>B.用镊子小心地将块状固体放入垂直的试管中<br>C.用100mL量筒量取9.5mLNaCl溶液<br>D.用托盘天平称量某固体样品的质量为5.00g<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/fb7ed235300244b39b1fde6498ce9667/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2020/5ebf53e2c7f940109803509ba20993bb/F5C22ADB21320236267EBD72490A1399.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>给150mL液体加热,需要使用的仪器是下列中的( )<br>①试管②烧杯③试管夹④酒精灯⑤蒸发皿⑥石棉网⑦铁架台(带铁圈)⑧玻璃棒A.①③④ B.②④⑦ C.②④⑥⑦ D.④⑤⑧<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/f107fde7e7a94816af74666e458b238e/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/cd52097b077c45848bdde5b3e8fdf051/87F8BE08F4FA14DB91B4CFE3A388EF30.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>用量筒量取液体,视线与量筒内液体凹液面的最低处保持水平,读数为15mL,倒出部分液体后,俯视凹液面的最低处读数为9mL,则该学生实际倒出的液体体积( )<br>A.小于6mL B.大于6mL C.等于6mL D.无法确定<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/45dfbc76136e48d4bb1ac0b2281ad697/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/022720e8cb3b441c92dd956359378a8e/41083DCF017C1C635011FEA1AE742031.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>某同学加热2~3mL食盐水,操作的正确顺序应该是( )<br>①点燃酒精灯②加热③用试管夹夹好试管④往试管中加入2~3mL食盐水⑤将试剂瓶盖好,放回原处A.①④③②⑤ B.①③④②⑤ C.④⑤③①② D.④③⑤①②<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/370e7087ec704b78bc76383f19bba53c/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br>略<br>※题型：填空题※知识点：填空题※试题难度：较易<br>如图是初中化学实验室常用的四种仪器,按要求填空。<br><img src="https://picture2.zhihuicn.com/testImage/2/2021/5/31/CDA7EC016769237C9DF1A07315582E1B.png"><br>1.用作配制溶液和较大量试剂的反应容器是,滴加液体常用。(填仪器名称)<br>2.量筒的用途是度量。<br>3.用完酒精灯后,要盖好灯帽,因为酒精有性。<br>4.取液后的滴管应保持橡胶帽在上,以免。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/19002780c6434fe3899013aabfc50a88/9A8B1DD70049D70FD2D3D601ACFAA7F1.png"><br>解析<br>略<br>※题型：填空题※知识点：填空题※试题难度：容易<br>取用药品应注意操作规范。<img src="https://picture2.zhihuicn.com/testImage/2/2021/5/31/CC7CA6CB0BA3C15A2318F0EB4F550D84.png"><br>1.取用粉末状固体时,先将试管,用把药品送至试管底部,再直立试管。<br>2.某同学向量筒倾倒液体时的操作如图,纠正其中的两处错误:,。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/7782f9f064e8485d832b5a5aad09bc00/92162F64C80618BEF28B0E4BA7375DC8.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/f3e294be4edd4786bad55fae2d377b42/15635CA794FABD62D2D8158CA9B4BA0B.png"><br><br>※题型：填空题※知识点：填空题※试题难度：较易<br>指出下列错误实验操作可能造成的后果。<br>1.将胶头滴管伸入容器内沿器壁滴加药液:。<br>2.将试管竖直,从管口加入金属颗粒:。<br>3.直接加热盛水的烧杯底部:。<br>4.加热时试管中液体体积超过试管容积的<img src="https://picture2.zhihuicn.com/testImage/2/2021/5/31/6457B55C5A13F613B05FB3B5595C6985.png"><br>:。<br>5.读取量筒内液体体积时,俯视液体凹液面的最低处读数:。<br>6.量取一定量液体药品时,仰视刻度线:。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/8aedcdd0d6fc47e4bb055fe3d7f68596/9C324FA383391D542057D283FA24334A.png"><br>解析<br>略<br>
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