本课配套习题挑战模式1/5
单选题
难度系数:
1.实验室制取二氧化碳所使用的原料是
A: 碳酸钠和稀盐酸 |
B: 大理石和稀硫酸 |
C: 大理石和稀盐酸 |
D: 双氧水和二氧化锰 |
一次做对,真牛!
+5奖励规则>
- 提示1:5a6e6aqM5a6k5Yi25Y+W5LqM5rCn5YyW56Kz55qE5Y6f55CG5piv77yaQ2FDTzxzdWI+Mzwvc3ViPisySENsPT09Q2FDbDxzdWI+Mjwvc3ViPitIPHN1Yj4yPC9zdWI+TytDTzxzdWI+Mjwvc3ViPuKGkQ==
- 答案:Qw==
5qC55o2u5a6e6aqM5a6k5Yi25Y+W5LqM5rCn5YyW56Kz55qE5Y+N5bqU5Y6f55CG5Yik5pat77yM5bqU5b2T5L2/55SoQ+mhueiNr+WTge+8mzxicj7lpKfnkIbnn7PlkoznqIDnoavphbjlj43lupTnlJ/miJDlvq7murbkuo7msLTnmoTnoavphbjpkpnvvIzkvb/lj43lupTpmr7ku6Xnu6fnu63ov5vooYzvvJvmlYVC5LiN56ym5ZCI6aKY5oSP77ybPGJyPuWPjOawp+awtOWSjOS6jOawp+WMlumUsOeUqOadpeWItuWPluawp+awlOOAgjxicj7mlYXpgIlD77yO
本课配套习题挑战模式2/5
单选题
难度系数:
2.如图分别是二氧化碳的制取、干燥、收集和性质检验的装置图。其中错误的是
A: |
B: |
C: |
D: |
一次做对,真牛!
+5奖励规则>
- 提示1:5LqM5rCn5YyW56Kz55qE5a+G5bqm5q+U56m65rCU5aSn
- 答案:Qw==
5a6e6aqM5a6k6YCa5bi455So56iA55uQ6YW45ZKM56Kz6YW46ZKZ5Y+N5bqU5Yi25Y+W5LqM5rCn5YyW56Kz77yM5Y+R55Sf6KOF572u5bqU5b2T5oyJ54Wn4oCc5Zu65ray5LiN5Yqg54Ot4oCd6YCJ5oup44CCQemhueato+ehruOAgjxicj7mtZPnoavphbjlhbfmnInlkLjmsLTmgKfvvIzkuJTkuI3kuI7kuozmsKfljJbnorPlj5HnlJ/lj43lupTvvIznlKjmnaXlubLnh6XkuozmsKfljJbnorPvvIxC6aG55q2j56Gu44CCPGJyPuS6jOawp+WMlueis+eahOWvhuW6puavlOepuuawlOWkp++8jOS4jeiDveeUqOWQkeS4i+aOkuepuuawlOazle+8jEPpobnplJnor6/jgII8YnI+5LqM5rCn5YyW56Kz5LiO5rC05Y+N5bqU55Sf5oiQ56Kz6YW477yM5Y+v5Lul5L2/55+z6JWK6K+V5ray5Y+Y5Li657qi6Imy77yMROmhueato+ehruOAgjxicj7nu7zkuIrvvIzlupTlvZPpgInmi6lD6aG544CC
本课配套习题挑战模式3/5
单选题
难度系数:
3.检验二氧化碳气体是否集满的正确方法是
A: 把燃着的木条放在瓶口 |
B: 加入石灰水充分震荡 |
C: 把燃着的木条放在瓶内 |
D: 加入紫色石蕊试液充分震荡 |
一次做对,真牛!
+5奖励规则>
- 提示1:5Yy65YiG5qOA6aqM5oCn6LSo5LiO6aqM5ruh44CC5LqM5rCn5YyW56Kz55qE6aqM5ruh55u05o6l55So54eD54On55qE5pyo5p2h6L+b6KGM44CC
- 答案:QQ==
6aqM5ruh5LqM5rCn5YyW56Kz55qE5pON5L2c5piv77ya5bCG54eD552A55qE5pyo5p2h5pS+5Zyo6ZuG5rCU55O25Y+j77yM6Iul5pyo5p2h54aE54Gt77yM6K+B5piO5rCU5L2T5bey5ruh44CC
本课配套习题挑战模式4/5
单选题
难度系数:
4.用来检验二氧化碳的试剂是
A: 水 |
B: 澄清石蕊试液 |
C: 燃着的木条 |
D: Ca(OH)2溶液 |
一次做对,真牛!
+5奖励规则>
- 提示1:5qOA6aqM5LqM5rCn5YyW56Kz5LiO6aqM5ruh5LiN5ZCM77yM5bqU5b2T5L2/55So5rCi5rCn5YyW6ZKZ5rq25ray44CC
- 答案:RA==
5qOA6aqM5LqM5rCn5YyW56Kz55qE5pa55rOV77ya5bCG5LqM5rCn5YyW56Kz6YCa5YWl5Yiw5rCi5rCn5YyW6ZKZ5rq25ray5Lit77yM6Iul5pyJ5rKJ5reA55Sf5oiQ77yM5YiZ5rCU5L2T5ZCr5pyJ5LqM5rCn5YyW56Kz44CC5Zug5q2k5bqU5b2T6YCJ5oupROmhueOAgg==
本课配套习题挑战模式5/5
单选题
难度系数:
5.小王要制备纯净的二氧化碳气体,可供选用的一起如图所示。可供选用的药品如下:①石灰石;②澄清石灰水;③稀硫酸;④浓硫酸;⑤盐酸溶液;⑥烧碱溶液;⑦碳酸氢钠溶液。下列装置连接顺序及组合最恰当的是
A: A(①⑤)、B(④)、C(⑦)、D |
B: A(①③)、B(④)、C(⑦)、D |
C: A(①⑤)、B(⑦)、C (④)、D |
D: A(①⑤)、B(⑥)、C(④)、D |
一次做对,真牛!
+5奖励规则>
- 提示1:6Zmk5Y675LqM5rCn5YyW56Kz5Lit55qESENs5rCU5L2T5bqU5b2T6YCJ55So56Kz6YW45rCi6ZKg5rq25ray44CC54On56Kx6Jm954S25Y+v5Lul5ZC45pS2SENs77yM5L2G5ZCM5pe25Lmf5Lya5ZC45pS25LqM5rCn5YyW56Kz44CC
- 提示2:6Zmk5p2C5ZCO6Zmk5rC044CC
- 答案:Qw==
5a6e6aqM5a6k5Yi25Y+W5LqM5rCn5YyW56Kz5bGe5LqO5Zu65L2T5ZKM5ray5L2T5LiN5Yqg54Ot5Y+N5bqU77yM55SoQeijhee9ruS9nOS4uuWPkeeUn+ijhee9ru+8jOaJgOeUqOiNr+WTgeS4uuefs+eBsOefs+WSjOeogOebkOmFuOa6tua2suOAgueUqELnk7bkuK3oo4XmnInnorPphbjmsKLpkqDmurbmtrLvvIznlKjmnaXlh7rljrvkuozmsKfljJbnorMg55qESENs5rCU5L2T77yb55SoQ+ijhee9ruebm+a1k+ehq+mFuOeUqOadpeW5sueHpeS6jOawp+WMlueis+OAguacgOWQju+8jOeUqEToo4Xnva7miYvmnLrnuq/lh4DnmoTkuozmsKfljJbnorPjgII8YnI+5oC75LiK77yM5bqU5b2T6YCJ5oupQ+OAgg==