本课配套习题挑战模式1/5
单选题
难度系数:
1.实验室加热高锰酸钾制氧气,可直接采用的发生装置是
A: |
B: |
C: |
D: |
一次做对,真牛!
+5奖励规则>
- 提示1:5a6e6aqM5a6k55So6auY6ZSw6YW46ZK+5Yi25Y+W5rCn5rCU77yM5bGe5LqO5Zu65L2T5Yqg54Ot5Z6L5Yi25Y+W5rCU5L2T44CC
- 答案:Qg==
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
本课配套习题挑战模式2/5
单选题
难度系数:
2.在实验室用高锰酸钾制氧气的实验中,必需的仪器是
A: (烧杯) |
B: (蒸发皿) |
C: (石棉网) |
D: (试管) |
一次做对,真牛!
+5奖励规则>
- 提示1:5a6e6aqM5a6k55So6auY6ZSw6YW46ZK+5Yi25rCn5rCU55qE6KOF572u5Lit77yM6ZyA6KaB5L2/55So55qE5Luq5Zmo5pyJ6YWS57K+54Gv44CB6ZOB5p625Y+w44CB6K+V566h44CB5bim5a+8566h55qE5qmh55qu5aGe44CB6ZuG5rCU55O2562J
- 答案:RA==
5a6e6aqM5a6k55So6auY6ZSw6YW46ZK+5Yi25rCn5rCU55qE6KOF572u5Lit77yM5b+F6ZyA55qE5Luq5Zmo5pyJ6KOF6I2v5ZOB6auY6ZSw6YW46ZK+55qE6K+V566h77yM54On5p2v5Y+v55So5p2l5Yqg54Ot5ray5L2T6I2v5ZOB44CB6JK45Y+R55q/5ZKM55+z5qOJ572R55So5LqO6JK45Y+R5pON5L2c77yM5pWF5LiN6ZyA6KaB54On5p2v44CB6JK45Y+R55q/44CB55+z5qOJ572R77yOPGJyPuaVhemAie+8mkTvvI4=
本课配套习题挑战模式3/5
单选题
难度系数:
3.实验室用高锰酸钾制氧气,不须使用的一组仪器是
A: 烧杯,玻璃棒 |
B: 试管,集气瓶 |
C: 酒精灯,铁架台 |
D: 导管,单孔橡皮塞 |
一次做对,真牛!
+5奖励规则>
- 提示1:PGltZyB3aWR0aD0zMzIgaGVpZ2h0PTIxOCBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwL0E2L0EwL3JCQUNGRlpOZDVlQ1VuZ0dBQUNVQ3lXWXlRQTE2MC5wbmciPg==
- 答案:QQ==
6Kej77yaQeOAgemrmOmUsOmFuOmSvuWItuawp+awlOeUqOWIsOeahOS7quWZqOacie+8muivleeuoeOAgemTgeaetuWPsOOAgemFkueyvueBr+OAgeWvvOeuoeOAgeWNleWtlOapoeearuWhnuOAgembhuawlOeTtu+8jOWboOatpOS4jeeUqOeDp+adr++8jOeOu+eSg+ajku+8jOaVhemAiemhueato+ehru+8mzxicj5C44CB6auY6ZSw6YW46ZK+5Yi25rCn5rCU55So5Yiw55qE5Luq5Zmo5pyJ77ya6K+V566h44CB6ZOB5p625Y+w44CB6YWS57K+54Gv44CB5a+8566h44CB5Y2V5a2U5qmh55qu5aGe44CB6ZuG5rCU55O277yM5Zug5q2k55So5Yiw6K+V566h77yM6ZuG5rCU55O277yM5LiN56ym5ZCI6aKY5oSP77yM5pWF6YCJ6aG56ZSZ6K+v77ybPGJyPkPjgIHpq5jplLDphbjpkr7liLbmsKfmsJTnlKjliLDnmoTku6rlmajmnInvvJror5XnrqHjgIHpk4Hmnrblj7DjgIHphZLnsr7nga/jgIHlr7znrqHjgIHljZXlrZTmqaHnmq7loZ7jgIHpm4bmsJTnk7bvvIzlm6DmraTnlKjliLDphZLnsr7nga/vvIzpk4Hmnrblj7DvvIzkuI3nrKblkIjpopjmhI/vvIzmlYXpgInpobnplJnor6/vvJs8YnI+ROOAgemrmOmUsOmFuOmSvuWItuawp+awlOeUqOWIsOeahOS7quWZqOacie+8muivleeuoeOAgemTgeaetuWPsOOAgemFkueyvueBr+OAgeWvvOeuoeOAgeWNleWtlOapoeearuWhnuOAgembhuawlOeTtu+8jOWboOatpOeUqOWIsOWvvOeuoe+8jOWNleWtlOapoeearuWhnu+8jOS4jeespuWQiOmimOaEj++8jOaVhemAiemhuemUmeivr++8mzxicj7mlYXpgIlB
本课配套习题挑战模式4/5
单选题
难度系数:
4.实验室用高锰酸钾制取氧气的部分操作如图所示,其中正确的是
A: (装药品) |
B: (制备) |
C: (收集) |
D: (验满) |
一次做对,真牛!
+5奖励规则>
- 提示1:5rOo5oSP4oCc6aqM5ruh4oCd5LiO4oCc5qOA6aqM4oCd55qE5Yy65Yir44CC
- 答案:Qw==
QeOAgeWPlueUqOeyieacq+eKtuiNr+WTge+8jOivleeuoeaoquaUvu+8jOeUqOiNr+WMmeaIlue6uOanveaKiuiNr+WTgemAgeWIsOivleeuoeW6lemDqO+8jOWbvuS4reaJgOekuuaTjeS9nOmUmeivr++8mzxicj5C44CB5Y+R55Sf6KOF572u55qE6K+V566h5Y+j5bqU5ZCR5LiL5YC+5pac77yM5Li655qE5piv6Ziy5q2i5Ya35Yed5rC05YCS5rWB5Zue6K+V566h77yM5L2/6K+V566h54K46KOC77yM5Zu+5Lit5omA56S65pON5L2c6ZSZ6K+v77ybPGJyPkPjgIHmsKfmsJTnmoTlr4bluqblpKfkuo7nqbrmsJTvvIzmiYDku6XlrZjmlL7msKfmsJTnmoTpm4bmsJTnk7blv4Xpobvnk7blj6PlkJHkuIrmraPmlL7vvIzlm77kuK3miYDnpLrmk43kvZzmraPnoa7vvJs8YnI+ROOAgemqjOa7oeawp+awlOW/hemhu+aKiuW4pueBq+aYn+eahOacqOadoeaUvuWcqOeTtuWPo++8jOS4jeiDveS8uOWFpeeTtuWGhe+8jOWbvuS4reaJgOekuuaTjeS9nOmUmeivr++8mzxicj7mlYXpgInvvJpD77yO
本课配套习题挑战模式5/5
单选题
难度系数:
5.用向上排空气法收集氧气,检验氧气是否集满的最简便的方法是
A: 看集气瓶口是否有气体冒出 |
B: 将带火星的木条伸入集气瓶中,看木条是否复燃 |
C: 将带火星的木条伸到集气瓶口,看木条是否复燃 |
D: 倒入澄清的石灰水,看是否变浑浊 |
一次做对,真牛!
+5奖励规则>
- 提示1:5Y+q6KaB6K+B5piO55O25Y+j5piv5rCn5rCU5bCx6K+05piO5rCn5rCU5bey5pS26ZuG5ruh77yM5qC55o2u5rCn5rCU5pyJ5Yqp54eD55qE5oCn6LSo5Y675qOA6aqM77yO
- 答案:Qw==
6Kej77ya5rCn5rCU6IO95L2/5bim54Gr5pif55qE5pyo5p2h5aSN54eD77yM6aqM5ruh5pe25bqU5bCG5bim54Gr5pif55qE5pyo5p2h5pS+5Zyo6ZuG5rCU55O25Y+j6YOo77yM5pyo5p2h5aSN54eD77yM6K+05piO5bey5ruh77yOPGJyPuaVhemAiUPvvI4=