选择题 物质的鉴别有多种方法。下列能达到鉴别目的的是(???? )
![]()
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060705/k2b12rumt5o.jpg\" style=\"vertical-align:middle;\">
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600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060705/k2b12rumt5o.jpg\" style=\"vertical-align:middle;\">①用水鉴别苯、乙醇、溴苯
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600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060705/k2b12rumt5o.jpg\" style=\"vertical-align:middle;\">②乙烯和甲烷可用酸性高锰酸钾溶液鉴别
![]()
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060705/k2b12rumt5o.jpg\" style=\"vertical-align:middle;\">③为除去苯中的少量来源：www.91exam.org苯酚,向混合物中加入适量的溴水后过滤
![]()
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060705/k2b12rumt5o.jpg\" style=\"vertical-align:middle;\">
A．①②
B．①③
C．②③
D．①②③
选择题 物质的鉴别有多种方法。下列能达到鉴别目的的是(???? )
![]()
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060705/k2b12rumt5o.jpg\" style=\"vertical-align:middle;\">
![]()
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060705/k2b12rumt5o.jpg\" style=\"vertical-align:middle;\">①用水鉴别苯、乙醇、溴苯
![]()
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060705/k2b12rumt5o.jpg\" style=\"vertical-align:middle;\">②乙烯和甲烷可用酸性高锰酸钾溶液鉴别
![]()
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060705/k2b12rumt5o.jpg\" style=\"vertical-align:middle;\">③为除去苯中的少量苯酚,向混合物中加入适量的溴水后过滤
![]()
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060705/k2b12rumt5o.jpg\" style=\"vertical-align:middle;\">
A．①②
B．①③
C．②③
D．①②③
本题答案：
本题解析：略
本题所属考点：【有机物燃烧规律的计算】
本题难易程度：【简单】
Talent is as talent does. 是不是有实才,就看干得来干不来.
