（17）大自然中的二氧化碳—2021-2022学年化学鲁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<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/8/7002435560602C62060BA723DC55D86C.png"><br>的制备装置中,不能起到“随时控制反应发生和停止”效果的是( )<br>A.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/8/C157B0E49C73DC6106E68A086B73061B.png"><br>B.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/8/3F9599E6C0D7CAF4FC38CEA34A666FFE.png"><br>C.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/8/2CDDED13EA51F621F277FE4133D40BA3.png"><br>D.<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/8/2C9CE1AB38AE2513F88B5C88C9403C32.png"><br><br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/ce4dbf192cd04883b6d0370d4f18beec/76900E09FAB5EBA344B8EA84E844FF07.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>如图所示实验能够说明二氧化碳具有的性质有( )<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/8/6342526832F3E11299AACA71C45788B1.png"><br>①不能燃烧②不能支持燃烧③还原性④密度比空气大⑤密度比空气小A.①②③ B.②③④ C.①②④ D.①②⑤<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/fc881717587f4deaa74d4bdb5e166f61/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/9d6f3dc51ff345aca50544527aafe120/D59F349E9FDDBF7B312F51065F08644F.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>如图所示实验中,①④为用紫色石蕊溶液润湿的棉球,②③为浸过紫色石蕊溶液的干燥棉球。下列能准确描述实验现象的是( )<img src="https://picture2.zhihuicn.com/testImage/2/2020/8/21/DF36AA1E7AF1168AD4777CF5E6615202.png"><br>A.④比①先红,②③不变红<br>B.①比④先红,②③不变红<br>C.④变红,①②③不变红<br>D.①变红,②③④不变红<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2020/04afbc39e6634f8da0491cc40c498221/E7F0EDF83F40244C8F0C84B97471AED6.png"><br>解析<br>略<br>※题型：单选题※知识点：单选题※试题难度：较易<br>如图,集气瓶中充满二氧化碳,大烧杯中燃着两支高低不等的蜡烛,实验时打开止水夹,移开玻璃片。下列说法正确的是( )<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/9/A94FA157296A40EEA9B519AE3097A7AC.png"><br>A.将观察到高的蜡烛先熄灭<br>B.不移开玻璃片,实验现象更明显<br>C.蜡烛会熄灭,是因为二氧化碳降低了蜡烛的着火点<br>D.去掉烧杯中的1支蜡烛,也能得出同样的实验结论<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/872dafa28939484a8fcbd646f271708e/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/5/2021/9f6bc1557f3744cd9f74ae0a40f5b69b/FE17CEDDBF289465946278179983CC67.png"><br><br>※题型：填空题※知识点：填空题※试题难度：中等<br>由于自然界中存在碳—<br>氧循环<br>因此空气的成分基本保持不变,据此回答下列问题<br>1.自然界中吸收<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/8/7002435560602C62060BA723DC55D86C.png"><br>的主要途径为。<br>2.为防止大气中<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/8/7002435560602C62060BA723DC55D86C.png"><br>的含量不断上升,从节能减排的角度,提出一条合理建议:。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/406e369420dc4b95b18b7e07d19d2f72/0B177615E42204241949762E97B26106.png"><br>解析<br>略<br>※题型：实验题※知识点：实验题※试题难度：较易<br>下列三套装置(如图甲、乙、丙)都可用于实验室制取<br><img src="https://picture2.zhihuicn.com/testImage/2/2021/6/7/7002435560602C62060BA723DC55D86C.png"><br><img src="https://picture2.zhihuicn.com/testImage/2/2021/6/7/C761D6EB482B9DE88A4D6D81F1E3C69E.png"><br>1.仪器A的名称是。<br>2.利用图乙装置制取<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/7/7002435560602C62060BA723DC55D86C.png"><br>时,长颈漏斗的下端管口必须浸没在溶液中,理由是。<br>3.检查乙装置气密性的方法是。<br>4.图甲和图丙装置相比,利用图甲装置来制取<img src="https://picture2.zhihuicn.com/testImage/2/2021/6/7/7002435560602C62060BA723DC55D86C.png"><br>时,主要的不足是________(写出任意一点即可)。<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/5/2021/7d19c9647db148779718529d70d3b6a1/BEEF16DEA6C277F019D3A0A2940F28B3.png"><br>解析<br>略<br>
页:
[1]