1/5单选题
难度：
1.下列物质既属于钠盐，又属于硫酸盐的是
| A | NaCl |
| B | CuSO4 |
| C | Na2SO4 |
| D | KNO3 |
- 提示1：
- 6ZKg55uQ5oyH55Sx6ZKg56a75a2Q5ZKM6YW45qC556a75a2Q5p6E5oiQ55qE55uQ77yM56Gr6YW455uQ5oyH6YeR5bGe56a75a2Q77yI6ZO15qC577yJ5ZKM56Gr6YW46YW45qC556a75a2Q5p6E5oiQ55qE55uQ
正确答案：Qw==
6ZKg55uQ5oyH55Sx6ZKg56a75a2Q5ZKM6YW45qC556a75a2Q5p6E5oiQ55qE55uQ77yM56Gr6YW455uQ5oyH6YeR5bGe56a75a2Q77yI6ZO15qC577yJ5ZKM56Gr6YW46YW45qC556a75a2Q5p6E5oiQ55qE55uQ77yMPGJyPuaVhemAiUPvvI4=
2/5单选题
难度：
2.分类是学习和研究化学的一种重要方法．下列分类合理的是
| A | HCl和H2SO4都属于酸 |
| B | K2CO3和K2O都属于盐 |
| C | NaOH和Na2CO3都属于碱 |
| D | H2O和O2都属于氧化物 |
- 提示1：
- 5rCn5YyW54mp5LiN5bGe5LqO55uQ
正确答案：QQ==
QeOAgUhDbOWSjEg8c3ViPjI8L3N1Yj5TTzxzdWI+NDwvc3ViPueUteemu+WHuueahOmYs+emu+WtkOWFqOmDqOaYr+awouemu+WtkOmDveWxnuS6jumFuO+8jOaVhUHmraPnoa7vvJs8YnI+QuOAgUs8c3ViPjI8L3N1Yj5DTzxzdWI+Mzwvc3ViPuaYr+ebkO+8jEs8c3ViPjI8L3N1Yj5P5bGe5LqO5rCn5YyW54mp5LiN5piv55uQ77yM5pWFQumUmeivr++8mzxicj5D44CBTmFPSOWxnuS6jueise+8jE5hPHN1Yj4yPC9zdWI+Q088c3ViPjM8L3N1Yj7lsZ7kuo7nm5DvvIzkuI3mmK/norHvvIzmlYVD6ZSZ6K+v77ybPGJyPkTjgIFIPHN1Yj4yPC9zdWI+T+WxnuS6juawp+WMlueJqe+8jE88c3ViPjI8L3N1Yj7mmK/ljZXotKjkuI3mmK/msKfljJbnianvvIzmlYVE6ZSZ6K+v77ybPGJyPuaVhemAiUHvvI4=
3/5单选题
难度：
3.下列关于物质的分类正确的是
| A | 纯碱属于碱 |
| B | 钢属于纯净物 |
| C | 液氨属于混合物 |
| D | 水属于氧化物 |
- 提示1：
- 6ZKi5piv5LiA56eN5ZCI6YeR44CC
- 提示2：
- 57qv56Kx55qE5Li76KaB5oiQ5YiG5piv56Kz6YW46ZKg
正确答案：RA==
QeOAgeawtOa6tua2suS4reeUteemu+WHuueahOmYtOemu+WtkOWFqOmDqOaYr+awouawp+agueemu+WtkOeahOWMluWQiOeJqeS4uueise+8jOe6r+eiseaYr+eis+mFuOmSoOWxnuS6juebkO+8jOaVhUHplJnor6/vvJs8YnI+QuOAgeWQjOenjeeJqei0qOe7hOaIkOeahOS4uue6r+WHgOeJqe+8jOmSouaYr+mTgeeahOWQiOmHkeWxnuS6jua3t+WQiOeJqe+8jOaVhULplJnor6/vvJs8YnI+Q+OAgeS4jeWQjOeJqei0qOe7hOaIkOeahOS4uua3t+WQiOeJqe+8jOa2suawqOWxnuS6jue6r+WHgOeJqe+8jOaVhUPplJnor6/vvJs8YnI+ROOAgeS4pOenjeWFg+e0oOe7hOaIkOWFtuS4reS4gOenjeaYr+awp+WFg+e0oOeahOWMluWQiOeJqeS4uuawp+WMlueJqe+8jOawtOaYr+awp+WMlueJqe+8jOaVhUTmraPnoa7vvJs8YnI+5pWF6YCJRO+8jg==
4/5单选题
难度：
4.用如图表示的一些物质或概念间的从属关系中不正确的是
| A | A |
| B | B |
| C | C |
| D | D |
- 提示1：
- 55Sx5Zu+5Y+v55+l77yM5qaC5b+155qE6IyD55W05Li6WuWMheWQq1nvvIxZ5YyF5ZCrWO+8jOeEtuWQjuWIqeeUqOeJqei0qOeahOe7hOaIkOWSjOaAp+i0qOadpeWIhuaekOeJqei0qOeahOexu+WIq++8jOWGjeagueaNruamguW/teeahOS7juWxnuWFs+ezu+adpeino+etlO+8jg==
正确答案：Qg==
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
5/5单选题
难度：
5.如果按照某种标准能将FeSO4、Na2SO3、NO划归为同一类物质，则下列物质中也能划归为此类物质的是
| A | KMnO4 |
| B | Al2（SO4）3 |
| C | KClO3 |
| D | K2HPO4 |
- 提示1：
- 5ZyoRmVTTzxzdWI+NDwvc3ViPuS4remTgeaYvisy5Lu377yM5ZyoTmE8c3ViPjI8L3N1Yj5TTzxzdWI+Mzwvc3ViPuS4reehq+aYvis05Lu377yM5ZyoTk/kuK3msK7mmL4rMuS7t++8jOS7luS7rOeahOWMluWQiOS7t+Wdh+WxnuS6juS4remXtOS7t+aAge+8jOi/meWwseaYr+WIhuexu+eahOagh+WHhg==
正确答案：Qw==
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