中学生网络课堂本课配套习题挑战模式1/5
单选题
难度系数：
1.
某溶液中可能含有Na+、NH4+、Ba2+、SO42－、I－、S2－。分别取样：①用pH计测试，溶液显弱酸性②加氯水和淀粉无明显现象。为确定该溶液的组成，还需检验的离子是（ ）
| A: Na+ |
| B: SO42- |
| C: Ba 2+ |
| D: NH4+ |
一次做对，真牛！
+5奖励规则>
- 提示1：PHA+5rq25ray5pi+5byx6YW45oCn77yM6K+05piO5pyJTkg8c3ViPjQ8L3N1Yj48c3VwPis8L3N1cD7vvIjmsLTop6PmmL7phbjmgKfvvInvvJs8L3A+
- 提示2：PHA+6YW45oCn5p2h5Lu25LiLUzxzdXA+Mjwvc3VwPjxzdXA+77yNPC9zdXA+5Lya5ZKMSDxzdXA+Kzwvc3VwPue7k+WQiOaIkEg8c3ViPjI8L3N1Yj5T5rCU5L2T77yM5omA5Lul5rq25ray5Lit5pegUzxzdXA+Mjwvc3VwPjxzdXA+77yNPC9zdXA+77ybPC9wPg==
- 提示3：PHA+5Yqg5rCv5rC05ZKM5reA57KJ5peg5piO5pi+546w6LGh5o6S6ZmkSTxzdXA+77yNPC9zdXA+77yb5qC55o2u55S16I235a6I5oGS5Y6f55CG77yM5rq25ray5Lit6Zi056a75a2Q5Y+q6IO95pivU088c3ViPjQ8L3N1Yj48c3VwPjItPC9zdXA+77yM5pWF5LiN6IO95pyJQmEgPHN1cD4yKzwvc3VwPuOAguS9huaYr05hPHN1cD4rPC9zdXA+5peg5rOV5o6S6Zmk44CCPC9wPg==
- 答案：QQ==
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
本课配套习题挑战模式2/5
单选题
难度系数：
2.甲、乙、丙、丁四种易溶于水的物质，分别由NH4+、Ba2＋、Mg2＋、H＋、OH－、Cl－、HCO3-、SO42-中的不同阳离子和阴离子各一种组成。已知：①将甲溶液分别与其他三种物质的溶液混合，均有白色沉淀生成；②0.1mol·L－1乙溶液中c(H＋)＞0.1mol·L－1；③向丙溶液中滴入 AgNO3溶液有不溶于稀HNO3的白色沉淀生成。下列结论不正确的是( )
| A: 甲溶液含有Ba2＋ |
| B: 乙溶液含有SO42- |
| C: 丙溶液含有Cl－ |
| D: 丁溶液含有Mg2＋ |
一次做对，真牛！
+5奖励规则>
- 提示1：IOeUseKRoTAuMQ0KbW9swrdMPHN1cD7vvI08L3N1cD48c3VwPjE8L3N1cD7kuZnmurbmtrLkuK08aT5jPC9pPihIPHN1cD7vvIs8L3N1cD4p77yeMC4xDQptb2zCt0w8c3VwPu+8jTwvc3VwPjxzdXA+MTwvc3VwPuWPr+efpeS5meS4ukg8c3ViPjI8L3N1Yj5TTzxzdWI+NDwvc3ViPg==
- 提示2：IOeUseKRouWPr+ehruWumuS4meS4reWQq+aciUNsLe+8jOe7k+WQiOeUsuS4juWFtuS7lua6tua2sua3t+WQiO+8jOWdh+acieeZveiJsuayiea3gOeUn+aIkO+8jA==
- 提示3：IOWImeeUsuS4ukJh77yIT0jvvIk8c3ViPjI8L3N1Yj7vvIzkuJnlkozkuIHliIbliKvkuLpNZ0NsPHN1Yj4yPC9zdWI+5ZKMTkg8c3ViPjQ8L3N1Yj5IQ088c3ViPjM8L3N1Yj4=
- 答案：RA==
55Sx4pGhMC4xbW9swrdMPHN1cD7vvI08L3N1cD48c3VwPjE8L3N1cD7kuZnmurbmtrLkuK08aT5jPC9pPihIPHN1cD7vvIs8L3N1cD4p77yeMC4xbW9swrdMPHN1cD7vvI08L3N1cD48c3VwPjE8L3N1cD7lj6/nn6XkuZnkuLpIPHN1Yj4yPC9zdWI+U088c3ViPjQ8L3N1Yj48YnI+55Sx4pGi5Y+v56Gu5a6a5LiZ5Lit5ZCr5pyJQ2wt77yM57uT5ZCI55Sy5LiO5YW25LuW5rq25ray5re35ZCI77yM5Z2H5pyJ55m96Imy5rKJ5reA55Sf5oiQ77yM5YiZ55Sy5Li6QmHvvIhPSO+8iTxzdWI+Mjwvc3ViPu+8jOS4meWSjOS4geWIhuWIq+S4uk1nQ2w8c3ViPjI8L3N1Yj7lkoxOSDxzdWI+NDwvc3ViPkhDTzxzdWI+Mzwvc3ViPg==
本课配套习题挑战模式3/5
单选题
难度系数：
3.
某含有Na+的澄清溶液中，可能还含有NH4+、Fe2+、I-、Br-、CO32-、SO32-六种离子中的几种. 用该溶液进行如下实验：① 滴加足量的新制氯水，有气泡生成，溶液变黄色；② 向①中所得的溶液中加入BaCl2溶液，无沉淀生成；③ 向①中所得溶液中加入淀粉溶液，不显蓝色。下列说法正确的是（ ）
| A: 一定含有Fe2+、Br-、CO3- |
| B: 一定呈碱性 |
| C: 一定不含有I-、SO32- |
| D: 一定含有NH4+ |
一次做对，真牛！
+5奖励规则>
- 提示1：PHA+5Y6f5rq25ray5Lit5ru05Yqg6Laz6YeP55qE5paw5Yi25rCv5rC05ZCO77yM5pyJ5rCU5rOh55Sf5oiQ77yM6K+05piO5rq25ray5Lit5ZCr5pyJQ088c3ViPjM8L3N1Yj48c3VwPjItPC9zdXA+77yM5Zug5q2k5LiA5a6a5LiN5ZCrRmU8c3VwPjIrPC9zdXA+77yM5rq25ray5ZGI6buE6Imy77yM6K+05piO5Y+v6IO955Sf5oiQSTxzdWI+Mjwvc3ViPuaIlkJyPHN1Yj4yPC9zdWI+77ybPGJyPjwvcD4=
- 提示2：PHA+IOWQkem7hOiJsueahOa6tua2suS4reWKoOWFpUJhQ2w8c3ViPjI8L3N1Yj7murbmtrLml7bml6Dmsonmt4DnlJ/miJDvvIzor7TmmI7kuI3lkKtTTzxzdWI+Mzwvc3ViPjxzdXA+Mjwvc3VwPu+8mzxicj48L3A+
- 提示3：PHA+6buE6Imy5rq25ray5LiN6IO95L2/5reA57KJ5rq25ray5Y+Y6JOd6Imy77yM5peg56KY5Y2V6LSo55Sf5oiQ77yM6K+05piO5Y6f5rq25ray5LiN5ZCrSTxzdXA+LTwvc3VwPu+8jOe7k+WQiOKRoOS4reWPjeW6lOWQjua6tua2suS4uum7hOiJsu+8jOWImeivtOaYjuWQq+aciUJyPHN1cD4tPC9zdXA+77ybPGJyPjwvcD4=
- 答案：Qw==
PHA+4pGgIOWOn+a6tua2suS4rea7tOWKoOi2s+mHj+eahOaWsOWItuawr+awtOWQju+8jOacieawlOazoeeUn+aIkO+8jOivtOaYjua6tua2suS4reWQq+aciUNPPHN1Yj4zPC9zdWI+PHN1cD4yLTwvc3VwPu+8jOWboOatpOS4gOWumuS4jeWQq0ZlPHN1cD4yKzwvc3VwPu+8jDxzdXA+PC9zdXA+5rq25ray5ZGI6buE6Imy77yM6K+05piO5Y+v6IO955Sf5oiQSTxzdWI+Mjwvc3ViPuaIlkJyPHN1Yj4yPC9zdWI+77ybPGJyPuKRoSDlkJHpu4ToibLnmoTmurbmtrLkuK3liqDlhaVCYUNsPHN1Yj4yPC9zdWI+5rq25ray5pe25peg5rKJ5reA55Sf5oiQ77yM6K+05piO5LiN5ZCrU088c3ViPjM8L3N1Yj48c3VwPjI8L3N1cD7vvJs8YnI+4pGiIOm7hOiJsua6tua2suS4jeiDveS9v+a3gOeyiea6tua2suWPmOiTneiJsu+8jOaXoOeimOWNlei0qOeUn+aIkO+8jOivtOaYjuWOn+a6tua2suS4jeWQq0k8c3VwPi08L3N1cD7vvIznu5PlkIjikaDkuK3lj43lupTlkI7murbmtrLkuLrpu4ToibLvvIzliJnor7TmmI7lkKvmnIlCcjxzdXA+LTwvc3VwPu+8mzxicj7msqHmnInov5vooYxOSDxzdWI+NDwvc3ViPjxzdXA+Kzwvc3VwPueahOaAp+i0qO+8jOa6tua2suS4reWQq+aciU5hPHN1cD4rPC9zdXA+77yM5YiZTkg8c3ViPjQ8L3N1Yj48c3VwPis8L3N1cD7kuI3og73noa7lrprmmK/lkKblrZjlnKjvvIw8YnI+QeOAgeeUseS4iui/sOWIhuaekOWPr+efpe+8jOa6tua2suS4reS4gOWumuS4jeWtmOWcqEZlPHN1cD4yKzwvc3VwPuOAgUk8c3VwPi08L3N1cD7jgIFTTzxzdWI+Mzwvc3ViPjxzdXA+Mi08L3N1cD7vvIzkuIDlrprlrZjlnKhCcjxzdXA+LTwvc3VwPu+8jOaVhUHplJnor6/vvJs8YnI+QuOAgea6tua2suS4reWtmOWcqEJyPHN1cD4tPC9zdXA+44CBQ088c3ViPjM8L3N1Yj48c3VwPjItPC9zdXA+77yM5rq25ray5Lit5a2Y5Zyo5aSn6YeP55qETkg8c3ViPjQ8L3N1Yj48c3VwPis8L3N1cD7vvIzliJnmurbmtrLlkYjphbjmgKfvvIznlLHkuo7msqHmnInmtonlj4rliLBOSDxzdWI+NDwvc3ViPjxzdXA+Kzwvc3VwPuemu+WtkOeahOaAp+i0qO+8jOa6tua2suS4reWQq+aciU5hPHN1cD4rPC9zdXA+77yM5YiZTkg8c3ViPjQ8L3N1Yj48c3VwPis8L3N1cD7kuI3og73noa7lrprmmK/lkKblrZjlnKjvvIzml6Dms5Xnoa7lrprphbjnorHmgKfvvIzmlYVC6ZSZ6K+v77ybPGJyPkPjgIHmnInkuIrov7DliIbmnpDlj6/nn6XvvIzmurbmtrLkuK3kuIDlrprkuI3lrZjlnKhGZTxzdXA+Mis8L3N1cD7jgIFJPHN1cD4tPC9zdXA+44CBU088c3ViPjM8L3N1Yj48c3VwPjItPC9zdXA+77yM5pWFQ+ato+ehru+8mzxicj5E44CB55Sx5LqO5rKh5pyJ5raJ5Y+K5YiwTkg8c3ViPjQ8L3N1Yj48c3VwPis8L3N1cD7nprvlrZDnmoTmgKfotKjvvIzmurbmtrLkuK3lkKvmnIlOYTxzdXA+Kzwvc3VwPu+8jOWImU5IPHN1Yj40PC9zdWI+PHN1cD4rPC9zdXA+5LiN6IO956Gu5a6a5piv5ZCm5a2Y5Zyo77yM5pWFROmUmeivr++8mzxicj48L3A+
本课配套习题挑战模式4/5
单选题
难度系数：
4.
一种浅绿色溶液，可能含有下列离子：H+ 、K+、Fe2+、NO3-、SO42-；现做以下实验：1、将溶液滴在紫色石蕊试纸上，试纸呈红色。2、取少量溶液，加入氯化钡溶液，产生白色沉淀，再加盐酸，沉淀不消失。3、另取溶液，加入硫氰化钾溶液无明显现象，再通入氯气，溶液变为血红色，则下列推断错误的是( )
| A: 溶液中肯定存在Fe2+ |
| B: 溶液中肯定存在SO42- |
| C: 无法确定溶液中是否存在K+ |
| D: 无法确定溶液中是否存在NO3- |
一次做对，真牛！
+5奖励规则>
- 提示1：PHA+PGltZyBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwLzJDL0MzL3JCQUNFMU5nMnFhQVJ1MElBQUFGWlJLa09wTTcwNy5wbmciIGRhdGEtY2tlLXNhdmVkLXNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvMkMvQzMvckJBQ0UxTmcycWFBUnUwSUFBQUZaUktrT3BNNzA3LnBuZyIgaGVpZ2h0PSIyNSIgd2lkdGg9IjM1NyI+6KGA57qi6Imy77ybPC9wPg==
- 提示2：PHA+Tk88c3ViPjM8L3N1Yj48c3VwPi08L3N1cD7kuI5IPHN1cD4rPC9zdXA+57uT5ZCI55Sf5oiQ56Gd6YW45Y2z5pyJ5by65rCn5YyW5oCn77yM5Y+v5L2/RmU8c3VwPjIrPC9zdXA+5rCn5YyW5Li6RmU8c3VwPjMrPC9zdXA+PC9wPg==
- 提示3：PHA+5L2/5rq25ray5LiA5byA5aeL5Y2z5Li66KGA57qi6Imy77yM5pWFTk88c3ViPjM8L3N1Yj48c3VwPi08L3N1cD7kuIDlrprkuI3lrZjlnKjvvIzogIxLPHN1cD4rPC9zdXA+5peg5rOV5Yik5pat5YW25a2Y5Zyo5LiO5ZCm77ybPC9wPg==
- 答案：Qw==
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
本课配套习题挑战模式5/5
单选题
难度系数：
5.某溶液仅含Fe2+、Na+、Al3+、Ba2+、SO42-、NO3-、Cl-中的4种离子，所含离子的物质的量均为1mol. 若向该溶液中加入过量的稀硫酸，有气泡产生，且溶液中阴离子种类不变（不考虑水的电离和离子的水解）。下列说法不正确的是（ ）
| A: 若向该溶液中加入足量的NaOH溶液，充分反应后，过滤、洗涤、灼烧，最终所得固体的质量为72g |
| B: 若向该溶液中加入过量的稀硫酸，产生的气体遇空气能变成红棕色 |
| C: 若向该溶液中加入过量的稀硫酸和KSCN溶液，溶液显血红色 |
| D: 该溶液中所含的离子是：Fe2+、Na+、SO42-、NO3- |
一次做对，真牛！
+5奖励规则>
- 提示1：IOeUn+aIkOeahE5P5piT6KKr5rCn5YyW5oiQ57qi5qOV6Imy55qE5LqM5rCn5YyW5rCu77yM5pWFQuato+ehru+8mw==
- 提示2：IOivpea6tua2suS4reWKoOmFuOWPkeeUn+awp+WMlui/mOWOn+WPjeW6lOeUn+aIkOmTgeemu+WtkO+8jOWImeWKoEtTQ07murbmtrLvvIzmurbmtrLmmL7ooYDnuqLoibLvvIzmlYVD5q2j56Gu77yb
- 提示3：IOeUseS4iui/sOaOqOaWreWPr+efpe+8jOivpea6tua2suS4reaJgOWQq+eahOemu+WtkOaYr++8mkZlPHN1cD4yKzwvc3VwPuOAgU5hPHN1cD4rPC9zdXA+44CBU088c3ViPjQ8L3N1Yj48c3VwPjItPC9zdXA+44CBTk88c3ViPjM8L3N1Yj48c3VwPi08L3N1cD7vvIzmlYVE5q2j56Gu77yb
- 答案：QQ==
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
