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;\">
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;\">
本题答案：C
本题解析：A：酸性溶液中NO3－具有强氧化性，可氧化Fe2＋，排除
B：水的电离受抑制，溶液可呈酸性或碱性，而HCO3－均不可能大量存在，排除
C：由题目可知，溶液呈强酸性，各离子可大量存在
D：铁离子可与SCN—生成络合离子，不正确
答案为C
本题所属考点：【离子共存】
本题难易程度：【简单】
The fairest rose is at last withered. 好花终有凋谢时.