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.根据以下几个反应：
①Cl2+2KI=2KCl+I2
②2FeCl2+Cl2=2FeCl3
③2FeCl3+2KI=2FeCl2+2KCl+I2
④I2+SO2+2H2O=H2SO4+2HI
判断氧化性由强到弱的顺序是
①Cl2+2KI=2KCl+I2
②2FeCl2+Cl2=2FeCl3
③2FeCl3+2KI=2FeCl2+2KCl+I2
④I2+SO2+2H2O=H2SO4+2HI
判断氧化性由强到弱的顺序是
| A: Cl2＞I2＞Fe3+＞SO2 |
| B: Cl2＞Fe3+＞I2＞SO2 |
| C: Cl2＞Fe3+＞SO2＞I2 |
| D: Fe3+＞I2＞Cl2＞SO2 |
一次做对，真牛！
+5奖励规则>
- 提示1：IOagueaNruWPjeW6lOS4reWFg+e0oOWMluWQiOS7t+eahOmZjeS9juadpeWIhuaekOawp+WMluWJgu+8jOeEtuWQjuWIqeeUqOawp+WMluWJgueahOawp+WMluaAp+Wkp+S6juawp+WMluS6p+eJqeeahOawp+WMluaAp+adpeavlOi+gzxicj4NCuWPjeW6lOKRoOS4rUNs5YWD57Sg55qE5YyW5ZCI5Lu355SxMOmZjeS9juS4ui0x5Lu377yM5YiZQ2w8c3ViPjI8L3N1Yj7kuLrmsKfljJbliYLvvIw8YnI+DQrnlLHmsKfljJbliYLnmoTmsKfljJbmgKflpKfkuo7msKfljJbkuqfniannmoTmsKfljJbmgKfvvIzliJnmsKfljJbmgKdDbDxzdWI+Mjwvc3ViPu+8nkk8c3ViPjI8L3N1Yj7vvJs=
- 提示2：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
- 提示3：IOWPjeW6lOKRo+S4rUnlhYPntKDnmoTljJblkIjku7fnlLEw6ZmN5L2O5Li6LTHku7fvvIzliJlJPHN1Yj4yPC9zdWI+5Li65rCn5YyW5YmC77yM
- 提示4：55Sx5rCn5YyW5YmC55qE5rCn5YyW5oCn5aSn5LqO6L+Y5Y6f5YmC55qE5rCn5YyW5oCn77yM5YiZ5rCn5YyW5oCnSTxzdWI+Mjwvc3ViPu+8nlNPPHN1Yj4yPC9zdWI+77yMPGJyPg0K55Sx5Lul5LiK5Y+N5bqU5Y+v55+l5rCn5YyW5oCn5by65byx5Li6Q2w8c3ViPjI8L3N1Yj7vvJ5GZTxzdXA+Mys8L3N1cD7vvJ5JPHN1Yj4yPC9zdWI+77yeU088c3ViPjI8L3N1Yj7jgII=
- 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.已知：①2FeCl3+2KI=2FeCl2+2KCl+I2②2FeCl2+Cl2=2FeCl3，则下列微粒还原能力由大到小的顺序正确的是
| A: Fe2+＞Cl-＞I- |
| B: I-＞Fe2+＞Cl- |
| C: I-＞Cl-＞Fe2+ |
| D: Cl-＞I-＞Fe2+ |
一次做对，真牛！
+5奖励规则>
- 提示1：MkZlQ2w8c3ViPjM8L3N1Yj4rMktJPTJGZUNsPHN1Yj4yPC9zdWI+KzJLQ2wrSTxzdWI+Mjwvc3ViPuS4re+8jOeimOWFg+e0oOWMluWQiOS7t+WNh+mrmO+8jOmTgeWFg+e0oOWMluWQiOS7t+mZjeS9ju+8jOaJgOS7peawr+WMlumTgeS9nOawp+WMluWJgu+8jOeimOWMlumSvuS9nOi/mOWOn+WJgu+8jOi/mOWOn+S6p+eJqeaYr+awr+WMluS6mumTge+8jOWImei/mOWOn+aAp0k8c3VwPi08L3N1cD7vvJ5GZTxzdXA+Mis8L3N1cD7vvJs=
- 提示2：Mi4gMkZlQ2w8c3ViPjI8L3N1Yj4rQ2w8c3ViPjI8L3N1Yj49MkZlQ2w8c3ViPjM8L3N1Yj7kuK3vvIzmsK/lhYPntKDljJblkIjku7fpmY3kvY7vvIzpk4HlhYPntKDljJblkIjku7fljYfpq5jvvIzmiYDku6XmsK/msJTmmK/msKfljJbliYLvvIzmsK/ljJbkuprpk4HmmK/ov5jljp/liYLvvIzmsK/ljJbpk4HmmK/msKfljJbkuqfnianlkozov5jljp/kuqfnianvvIzmiYDku6Xov5jljp/mgKdGZTxzdXA+Mis8L3N1cD7vvJ5DbDxzdXA+LTwvc3VwPu+8mw==
- 提示3：My4g6L+Z5LiJ56eN56a75a2Q55qE6L+Y5Y6f5oCn5aSn5bCP6aG65bqP5piv77yaSTxzdXA+LTwvc3VwPu+8nkZlPHN1cD4yKzwvc3VwPu+8nkNsPHN1cD4tPC9zdXA+44CC
- 答案：Qg==
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
本课配套习题挑战模式3/5
单选题
难度系数：
3.将SO2少量通入Fe2（SO4）3溶液中发生反应SO2+2Fe3++2H2O=SO42-+2Fe2++4H+；然后再加入K2Cr2O7溶液，发生反应：Cr2O72-+6Fe2++14H+=2Cr3++6Fe3++7H2O. 下列判断正确的是
| A: 还原性Cr3+＞Fe2+＞SO2 |
| B: 氧化性Cr2O72-＞SO2＞Fe3+ |
| C: 两个反应中Fe2（SO4）3均作还原剂 |
| D: Cr2O72-能将SO2氧化成SO42- |
一次做对，真牛！
+5奖励规则>
- 提示1：IEHjgIHlj43lupRTTzxzdWI+Mjwvc3ViPisyRmU8c3VwPjMrPC9zdXA+KzJIPHN1Yj4yPC9zdWI+Tz1TTzxzdWI+NDwvc3ViPjxzdXA+Mi08L3N1cD4rMkZlPHN1cD4yKzwvc3VwPis0SDxzdXA+Kzwvc3VwPuS4re+8jFNPPHN1Yj4yPC9zdWI+5piv6L+Y5Y6f5YmC77yMRmU8c3VwPjIrPC9zdXA+5piv6L+Y5Y6f5Lqn54mp77yM5omA5Lul6L+Y5Y6f5oCn77yaRmU8c3VwPjIrPC9zdXA+77ycU088c3ViPjI8L3N1Yj7vvIzmlYVB6ZSZ6K+v77yb
- 提示2：IELjgIHlj43lupRDcjxzdWI+Mjwvc3ViPk88c3ViPjc8L3N1Yj48c3VwPjItPC9zdXA+KzZGZTxzdXA+Mis8L3N1cD4rMTRIPHN1cD4rPC9zdXA+PTJDcjxzdXA+Mys8L3N1cD4rNkZlPHN1cD4zKzwvc3VwPis3SDxzdWI+Mjwvc3ViPk/kuK3vvIzmsKfljJbliYLmmK9DcjxzdWI+Mjwvc3ViPk88c3ViPjc8L3N1Yj48c3VwPjItPC9zdXA+77yM5rCn5YyW5Lqn54mp5pivRmU8c3VwPjMrPC9zdXA+77yM5omA5Lul5rCn5YyW5oCn77yaQ3I8c3ViPjI8L3N1Yj5PPHN1Yj43PC9zdWI+PHN1cD4yLTwvc3VwPu+8nkZlPHN1cD4zKzwvc3VwPu+8jOWPjeW6lFNPPHN1Yj4yPC9zdWI+KzJGZTxzdXA+Mys8L3N1cD4rMkg8c3ViPjI8L3N1Yj5PPVNPPHN1Yj40PC9zdWI+PHN1cD4yLTwvc3VwPisyRmU8c3VwPjIrPC9zdXA+KzRIPHN1cD4rPC9zdXA+5Lit77yMU088c3ViPjI8L3N1Yj7mmK/ov5jljp/liYLvvIxGZTxzdXA+Mys8L3N1cD7mmK/msKfljJbliYLvvIzmiYDku6XmsKfljJbmgKdTTzxzdWI+Mjwvc3ViPu+8nEZlPHN1cD4zKzwvc3VwPu+8jOaVhULplJnor6/vvJs=
- 提示3：IEPjgIHnrKzkuIDkuKrlj43lupTkuK1GZTxzdWI+Mjwvc3ViPu+8iFNPPHN1Yj40PC9zdWI+77yJPHN1Yj4zPC9zdWI+5YGa5rCn5YyW5YmC77yM56ys5LqM5Liq5Y+N5bqU5LitRmU8c3ViPjI8L3N1Yj7vvIhTTzxzdWI+NDwvc3ViPu+8iTxzdWI+Mzwvc3ViPuaYr+awp+WMluS6p+eJqe+8jOaVhUPplJnor6/vvJs8YnI+DQpE44CB5YW35pyJ5by65rCn5YyW5oCn55qEQ3I8c3ViPjI8L3N1Yj5PPHN1Yj43PC9zdWI+PHN1cD4yLTwvc3VwPuiDveWwhui/mOWOn+aAp+eahFNPPHN1Yj4yPC9zdWI+5rCn5YyW5oiQU088c3ViPjQ8L3N1Yj48c3VwPjItPC9zdXA+77yM5pWFROato+ehruOAgg==
- 答案：RA==
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
本课配套习题挑战模式4/5
单选题
难度系数：
4.已知：
①2BrO3-+Cl2=Br2+2ClO3-；
②5Cl2+I2+6H2O=2HIO3+10HCl；
③ClO3-+5Cl-+6H+=3Cl2↑+3H2O
下列按物质氧化性顺序由强到弱排列正确的是
①2BrO3-+Cl2=Br2+2ClO3-；
②5Cl2+I2+6H2O=2HIO3+10HCl；
③ClO3-+5Cl-+6H+=3Cl2↑+3H2O
下列按物质氧化性顺序由强到弱排列正确的是
| A: Cl2＞BrO3-＞ClO3-＞IO3- |
| B: BrO3-＞ClO3-＞Cl2＞IO3- |
| C: ClO3-＞BrO3-＞IO3-＞Cl2 |
| D: BrO3-＞Cl2＞ClO3-＞IO3- |
一次做对，真牛！
+5奖励规则>
- 提示1：IOWPjeW6lDJCck88c3ViPjM8L3N1Yj48c3VwPi08L3N1cD4rQ2w8c3ViPjI8L3N1Yj49QnI8c3ViPjI8L3N1Yj4rMkNsTzxzdWI+Mzwvc3ViPjxzdXA+LTwvc3VwPu+8jOawp+WMluWJguS4ukNsPHN1Yj4yPC9zdWI+77yM6L+Y5Y6f5YmC5Li6QnJPPHN1Yj4zPC9zdWI+PHN1cD4tPC9zdXA+77yM5omA5Lul5rCn5YyW5oCnQnJPPHN1Yj4zPC9zdWI+PHN1cD4tPC9zdXA+77yeQ2xPPHN1Yj4zPC9zdWI+PHN1cD4tPC9zdXA+77yb
- 提示2：IDVDbDxzdWI+Mjwvc3ViPitJPHN1Yj4yPC9zdWI+KzZIPHN1Yj4yPC9zdWI+Tz0ySElPPHN1Yj4zPC9zdWI+KzEwSENs77yM5rCn5YyW5YmC5Li6Q2w8c3ViPjI8L3N1Yj7vvIzmsKfljJbkuqfniankuLpJTzxzdWI+Mzwvc3ViPjxzdXA+LTwvc3VwPu+8jOaJgOS7peawp+WMluaAp0NsPHN1Yj4yPC9zdWI+77yeSU88c3ViPjM8L3N1Yj48c3VwPi08L3N1cD7vvJs=
- 提示3：IENsTzxzdWI+Mzwvc3ViPjxzdXA+LTwvc3VwPis1Q2w8c3VwPi08L3N1cD4rNkg8c3VwPis8L3N1cD49M0NsPHN1Yj4yPC9zdWI+4oaRKzNIPHN1Yj4yPC9zdWI+T++8jOawp+WMluWJguS4ukNsTzxzdWI+Mzwvc3ViPjxzdXA+LTwvc3VwPu+8jOawp+WMluS6p+eJqeS4ukNsPHN1Yj4yPC9zdWI+77yM5omA5Lul5rCn5YyW5oCnQ2xPPHN1Yj4zPC9zdWI+PHN1cD4tPC9zdXA+77yeQ2w8c3ViPjI8L3N1Yj7vvJs8YnI+DQrmiYDku6XmsKfljJbmgKdCck88c3ViPjM8L3N1Yj48c3VwPi08L3N1cD7vvJ5DbE88c3ViPjM8L3N1Yj48c3VwPi08L3N1cD7vvJ5DbDxzdWI+Mjwvc3ViPu+8nklPPHN1Yj4zPC9zdWI+PHN1cD4tPC9zdXA+44CC
- 答案：Qg==
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
本课配套习题挑战模式5/5
单选题
难度系数：
5.根据下列三个反应的化学方程式，下列关系式正确的是（ ）
①I2+SO2+2H2O=H2SO4+2HI②2FeCl3+2HI=2FeCl2+2HCl+I2③2FeCl2+Cl2=2FeCl3
①I2+SO2+2H2O=H2SO4+2HI②2FeCl3+2HI=2FeCl2+2HCl+I2③2FeCl2+Cl2=2FeCl3
| A: 氧化性：Fe3+＞Cl2＞H2SO4＞I2 |
| B: 还原性：SO2＞I-＞Fe2+＞Cl- |
| C: Fe与I2化合：2Fe+3I2=2FeI3 |
| D: FeI2溶液中通入一定量的Cl2：2Fe2++2I-+2Cl2=2Fe3++I2+4Cl- |
一次做对，真牛！
+5奖励规则>
- 提示1：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
- 提示2：IEHjgIHmsKfljJbmgKflpKflsI/kuLpDbDxzdWI+Mjwvc3ViPu+8nkZlPHN1cD4zKzwvc3VwPu+8nkk8c3ViPjI8L3N1Yj7vvJ5IPHN1Yj4yPC9zdWI+U088c3ViPjQ8L3N1Yj7vvIzmlYVB6ZSZ6K+v77ybPGJyPg0KPGJyPg0K
- 提示3：IOWboEZlPHN1cD4zKzwvc3VwPuS4jkk8c3VwPi08L3N1cD7lj5HnlJ/msKfljJbov5jljp/lj43lupTvvIzliJlGZeS4jkk8c3ViPjI8L3N1Yj7ljJblkIjlj5HnlJ9GZStJPHN1Yj4yPC9zdWI+PUZlSTxzdWI+Mjwvc3ViPu+8jOaVhUPplJnor6/vvJs=
- 答案：Qg==
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
