1、选择题 化学知识在生活中有重要意义，下列说法不正确的是
A．草木灰（含有K2CO3）水溶液可以用于洗涤油污
B．乙醇、乙酸和甲醛广泛应用于食品加工
C．捕获排放的CO2能降低地球的温室效应
D．在海轮外壳上镶入锌块，可减缓船体的腐蚀速率
2、选择题 常温下，下列各组离子在指定溶液中可以大量共存的是（ ）
A．由水电离出的c（H＋）＝10－12 mol·L－1的溶液中：Na＋、Ba2＋、HCO3-、Cl－
B．无色透明溶液中：K＋、Cu2＋、SO42-、Na＋
C．含有大量AlO2-的溶液中：Na＋、OH－、Cl－、CO32-
D．能使pH试纸显红色的溶液中：Na＋、ClO－、Fe2＋、SO42-
3、选择题 常温下，下列各组离子或分子在指定溶液中能大量共存的是(??? )
A．加入苯酚显紫色的溶液中：K+、NH、C1-、I-
B．Kw／c(H+)=\"0.2\" mol／L的溶液中：Na+、I-、S2-、CO32-
C．使甲基橙变红的溶液中：CH3CHO、Na+、Cr2O72-、SO42-
D．0.1 mol/L NaAlO2溶液中：Al3+、Cu2+、SO32-、MnO4-
4、选择题 常温下，下列各组离子在指定溶液中能大量共存的是
A．![]()
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060704/lll3z0tmwqt.png\" style=\"vertical-align:middle;\">的溶液中：![]()
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060704/pwvxl44aokn.png\" style=\"vertical-align:middle;\">、![]()
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060704/jmv2igo2by1.png\" style=\"vertical-align:middle;\">、![]()
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060704/33idfro04jk.png\" style=\"vertical-align:middle;\">、![]()
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060704/yyzxsaiamho.png\" style=\"vertical-align:middle;\">
B．由水电离的![]()
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060704/c0afz0fn0xc.png\" style=\"vertical-align:middle;\">的溶液中：![]()
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060704/q25paz2kpsj.png\" style=\"vertical-align:middle;\">、![]()
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060704/mjr31c0y3hs.png\" style=\"vertical-align:middle;\">、![]()
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060704/hckdycvc51l.png\" style=\"vertical-align:middle;\">、![]()
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060704/sl2azfh4hdn.png\" style=\"vertical-align:middle;\">
C．![]()
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060704/3gjwx2g5aq0.png\" style=\"vertical-align:middle;\">的溶液中：![]()
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060704/fhhtjtkwgdk.png\" style=\"vertical-align:middle;\">、![]()
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060704/it3lbaaj0sj.png\" style=\"vertical-align:middle;\">、![]()
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060704/jmv2igo2by1.png\" style=\"vertical-align:middle;\">、![]()
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060704/hckdycvc51l.png\" style=\"vertical-align:middle;\">
D．![]()
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060704/lm53lj1bkzy.png\" style=\"vertical-align:middle;\">的溶液中：![]()
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060704/mjr31c0y3hs.png\" style=\"vertical-align:middle;\">、![]()
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060704/3h51xokfnsj.png\" style=\"vertical-align:middle;\">、![]()
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060704/33idfro04jk.png\" style=\"vertical-align:middle;\">、![]()
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060704/1r3umauxkjp.png\" style=\"vertical-align:middle;\">
5、选择题 在强酸性的无色溶液中一定能大量共存的离子组是
A．Na+、K+、Cl-、CO32-
B．Na+、Ba2+、NO3-、SO42-
C．Mg2+、K+、Cl-、SO42-
D．Fe2+、ClO-、Ca2+、Cl-
