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.用漂白粉溶液浸泡过的有色布条，如晾晒在空气中，过一段时间，其漂白效果更好的原因是
| A: 漂白粉中的次氯酸钙被氧气氧化了，增强其漂白效果 |
| B: 有色布条被空气中的氧气氧化 |
| C: 漂白粉和空气中的二氧化碳充分反应生成了次氯酸 |
| D: 漂白粉溶液蒸去了部分水分，浓度增大了 |
一次做对，真牛！
+5奖励规则>
- 提示1：5ryC55m957KJ55qE5Li76KaB5pyJ5pWI5oiQ5YiG5piv5qyh5rCv6YW46ZKZ77yM6ICM5a6D55qE5ryC55m95Y6f55CG5piv77ya5qyh5rCv6YW46ZKZ5YWI5LiO56m65rCU5Lit55qE5LqM5rCn5YyW56Kz5Y+N5bqU55Sf5oiQ5qyh5rCv6YW477yM5qyh5rCv6YW45Y+R5oyl5ryC55m95L2c55So44CC
- 答案：Qw==
5ryC55m957KJ5Lit55qE5pyJ5pWI5oiQ5YiG5piv5qyh5rCv6YW46ZKZ77yM5qyh5rCv6YW46ZKZ5LiO56m65rCU5Lit55qE5LqM5rCn5YyW56Kz5Y+R55Sf5Y+N5bqU55Sf5oiQ5qyh5rCv6YW477yM5qyh5rCv6YW45Y+R5oyl5a6D55qE5ryC55m95oCn44CC5Zug5q2k5pS+572u5Zyo56m65rCU5Lit5LiA5q615pe26Ze077yM5ryC55m95oCn5Lya5aKe5by644CC6YCJ5oupQ+mhueOAgg==
本课配套习题挑战模式2/5
单选题
难度系数：
2.化学知识在日常生活中有很多应用，下列说法正确的是
| A: 用食盐易清洗热水瓶中的水垢 |
| B: 漂白粉在空气中容易变质的原因是Ca（ClO）2见光分解 |
| C: 二氧化硫能漂白某些物质，加热后可恢复原色 |
| D: 氯水应避光保存，是因为氯水易挥发 |
一次做对，真牛！
+5奖励规则>
- 提示1：Q2HvvIhDbE/vvIk8c3ViPjI8L3N1Yj7op4HlhYnkuI3mmJPliIbop6PvvIzmvILnmb3nsonlnKjnqbrmsJTkuK3lrrnmmJPlj5jotKjnmoTljp/lm6DmmK9DYe+8iENsT++8iTxzdWI+Mjwvc3ViPuS4juepuuawlOS4reeahOawtOOAgeS6jOawp+WMlueis+WPjeW6lOeUn+aIkEhDbE/jgII=
- 答案：Qw==
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
本课配套习题挑战模式3/5
单选题
难度系数：
3.一定物质的量的Cl2与NaOH溶液反应，所得产物中含NaClO和NaClO3物质的量之比为3∶5，则参加反应的Cl2与NaOH物质的量之比为
| A: 8∶11 |
| B: 3∶5 |
| C: 1∶2 |
| D: 18∶8 |
一次做对，真牛！
+5奖励规则>
- 提示1：5omA5b6X5Lqn54mp5Lit5ZCrTmFDbE/lkoxOYUNsTzxzdWI+Mzwvc3ViPueJqei0qOeahOmHj+S5i+avlOS4ujPiiLY177yM5rCv5Y6f5a2Q5YWxOOS4qu+8jOmSoOemu+WtkOS4qjjkuKrjgILogIzlnKjlj6bkuIDnp43kuqfnialOYUNsIOS4re+8jOmSoOWOn+WtkOS4juawr+WOn+WtkOeahOavlOS+i+S5n+aYrzE6MeeahOOAgg==
- 提示2：5LiA5LiqTmFPSOS4reWQq+aciTHkuKpOYe+8jOS4gOS4quawr+awlOWIhuWtkOS4reWQq+aciTLkuKrmsK/ljp/lrZDjgII=
- 答案：Qw==
5omA5b6X5Lqn54mp5Lit77yMTmFDbE/lkoxOYUNsTzxzdWI+Mzwvc3ViPuS7peWPik5hQ2zmmK/lhajpg6jlkKvmnIlOYeWSjENsIOeahOS6p+eJqe+8jOWcqOS4ieiAheS4re+8jE5h5LiOQ2znmoTkuKrmlbDmr5TlnYfkuLoxOjHvvIzmiYDku6Xml6Dorrrmr5TkvovlpoLkvZXvvIxOYeS4jkNs55qE5Liq5pWw6YO95piv55u4562J55qE44CCPGJyPuavj+S4qk5hT0jmj5Dkvpsx5LiqTmHvvIzogIzmr4/kuKpDbDxzdWI+Mjwvc3ViPuaPkOS+m+S4pOS4qkNs77yM5Zug5q2kQ2w8c3ViPjI8L3N1Yj7kuI5OYU9I54mp6LSo55qE6YeP5LmL5q+U5Li6MToy44CC
本课配套习题挑战模式4/5
单选题
难度系数：
4.已知在热的碱性溶液中，Cl2发生如下反应：Cl2+NaOH→NaCl+NaClO3+H2O（未配平）．请推测NaClO2在热的碱性溶液中发生反应的最终产物是
| A: NaCl、NaClO |
| B: NaCl、NaClO3 |
| C: NaClO、NaClO3 |
| D: NaClO3、NaClO4 |
一次做对，真牛！
+5奖励规则>
- 提示1：5Y+N5bqUQ2w8c3ViPjI8L3N1Yj4rTmFPSOKGkk5hQ2wrTmFDbE88c3ViPjM8L3N1Yj4rSDxzdWI+Mjwvc3ViPk/kuK3vvIxDbOWFg+e0oOWMluWQiOS7t+aXouWNh+mrmOWPiOmZjeS9ju+8jOiHqui6q+WPkeeUn+awp+WMlui/mOWOn+WPjeW6lO+8jE5hQ2xPPHN1Yj4yPC9zdWI+5Zyo54Ot55qE56Kx5oCn5rq25ray5Lit5Lmf6IO95Y+R55Sf57G75Ly855qE5Y+N5bqU77yMQ2zlhYPntKDljJblkIjku7fml6LljYfpq5jlj4jpmY3kvY7jgII=
- 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.将一定量的氯气通入30mL浓度为10.00mol/L的氢氧化钠浓溶液中，加热少许时间后溶液中形成氯化钠（X）、次氯酸钠（Y）和氯酸钠（Z）共存体系，下列判断不正确的是
| A: 与氢氧化钠反应的氯气一定为0.15mol |
| B: n（Na+）：n（Cl﹣）可能为7：3 |
| C: 若反应中转移的电子为n mol，则n一定大于0.15mol |
| D: X：Y：Z可能为7：2：1 |
一次做对，真牛！
+5奖励规则>
- 提示1：55Sx5LqO5Y+N5bqU5ZCO5L2T57O75Lit5rKh5pyJTmFPSO+8jOaVheawouawp+WMlumSoOWPjeW6lOWujO+8jOagueaNrumSoOWFg+e0oOWuiOaBkm7vvIhOYU9I77yJPW7vvIhOYUNs77yJK27vvIhOYUNsT++8iStu77yITmFDbE88c3ViPjM8L3N1Yj7vvInvvIznlLHmsK/ljp/lrZDlrojmgZLmnIkybu+8iENsPHN1Yj4yPC9zdWI+77yJPW7vvIhOYUNs77yJK27vvIhOYUNsT++8iStu77yITmFDbE88c3ViPjM8L3N1Yj7vvIk=
- 提示2：5qC55o2u5pa556iL5byPQ2w8c3ViPjI8L3N1Yj4rMk5hT0g9TmFDbCtOYUNsTytIPHN1Yj4yPC9zdWI+T+OAgTNDbDxzdWI+Mjwvc3ViPis2TmFPSD01TmFDbCtOYUNsTzxzdWI+Mzwvc3ViPiszSDxzdWI+Mjwvc3ViPk/lj6/nn6XvvIzmsKfljJbkuqfnianlj6rmnIlOYUNsT++8jG7vvIhOYSvvvInvvJpu77yIQ2zvuaPvvInmnIDlpKfkuLoy77yaMe+8jOW9k+awp+WMluS6p+eJqeS4uk5hQ2xPPHN1Yj4zPC9zdWI+77yMbu+8iE5hPHN1cD4rPC9zdXA+77yJ77yabu+8iENsPHN1cD7vuaM8L3N1cD7vvInmnIDlsI/kuLo277yaNe+8mw==
- 提示3：5Yip55So5p6B6ZmQ5rOV6Kej562U77yM5qC55o2u5pa556iL5byPQ2w8c3ViPjI8L3N1Yj4rMk5hT0g9TmFDbCtOYUNsTytIPHN1Yj4yPC9zdWI+T+OAgTNDbDxzdWI+Mjwvc3ViPis2TmFPSD01TmFDbCtOYUNsTzxzdWI+Mzwvc3ViPiszSDxzdWI+Mjwvc3ViPk/lj6/nn6XvvIzmsKfljJbkuqfnianlj6rmnIlOYUNsT++8jOi9rOenu+eUteWtkOaVsOacgOWwke+8jOawp+WMluS6p+eJqeWPquaciU5hQ2xPPHN1Yj4zPC9zdWI+77yM6L2s56e755S15a2Q5pWw5pyA5aSa77yb
- 提示4：5Lukbu+8iE5hQ2zvvIk9N21vbO+8jG7vvIhOYUNsT++8iT0ybW9s77yMbu+8iE5hQ2xPPHN1Yj4zPC9zdWI+77yJPTFtb2zvvIzmoLnmja7nlLXlrZDovaznp7vlrojmgZLpqozor4HliKTmlq3vvI4=
- 答案：Qg==
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
