选择题 某烃经分析测得碳的质量分数为85.71%,质谱图显示,其质荷比为84;该烃的核磁共振氢谱如下图所示。则该烃为 600)makesmallpic(this,600,1800);\' style=\"VERTICAL-ALIGN: middle\" border=\"0\" src=\"http://www_php168_com/91files/ ">
时间:2017-02-09 11:14:36
选择题 某烃经分析测得碳的质量分数为85.71%,质谱图显示,其质荷比为84;该烃的核磁共振氢谱如下图所示。则该烃为 600)makesmallpic(this,600,1800);\' style=\"VERTICAL-ALIGN: middle\" border=\"0\" src=\"http://www_php168_com/91files/2016060707/mqfwszgnc25.gif\">[???? ]
A.HCHO
B.600)makesmallpic(this,600,1800);\' style=\"VERTICAL-ALIGN: middle\" border=\"0\" src=\"http://www_php168_com/91files/2016060707/xqvkpfxhfyk.gif\">
C.600)makesmallpic(this,600,1800);\' style=\"VERTICAL-ALIGN: middle\" border=\"0\" src=\"http://www_php168_com/91files/2016060707/24qbrypvghc.gif\">
D.600)makesmallpic(this,600,1800);\' style=\"VERTICAL-ALIGN: middle\" border=\"0\" src=\"http://www_php168_com/91files/2016060707/rcibjnejcyv.gif\">
选择题 某烃经分析测得碳的质量分数为85.71%,质谱图显示,其质荷比为84;该 www.91eXam.org烃的核磁共振氢谱如下图所示。则该烃为 600)makesmallpic(this,600,1800);\' style=\"VERTICAL-ALIGN: middle\" border=\"0\" src=\"http://www_php168_com/91files/2016060707/mqfwszgnc25.gif\">[???? ]
A.HCHO
B.600)makesmallpic(this,600,1800);\' style=\"VERTICAL-ALIGN: middle\" border=\"0\" src=\"http://www_php168_com/91files/2016060707/xqvkpfxhfyk.gif\">
C.600)makesmallpic(this,600,1800);\' style=\"VERTICAL-ALIGN: middle\" border=\"0\" src=\"http://www_php168_com/91files/2016060707/24qbrypvghc.gif\">
D.600)makesmallpic(this,600,1800);\' style=\"VERTICAL-ALIGN: middle\" border=\"0\" src=\"http://www_php168_com/91files/2016060707/rcibjnejcyv.gif\">
本题答案:B
本题解析:
本题所属考点:【物质的鉴别】
本题难易程度:【一般】