下列化合物中沸点最低的是A.CH3-(CH2)4-CH3 B.CH3(CH2)3-CH3C.CH3-CH2-CH(CH3)2 D.(CH3)2C(CH3)2A.CH3-(CH2)4-CH3 B.CH3-(CH2)3-CH3C.CH3-CH2-CH(CH3)2 D.(CH3)2C(CH3)2

分类: 作业答案 • 2022-03-02 14:05:55

问题描述：

下列化合物中沸点最低的是
A.CH3-(CH2)4-CH3 B.CH3(CH2)3-CH3
C.CH3-CH2-CH(CH3)2 D.(CH3)2C(CH3)2
A.CH3-(CH2)4-CH3 B.CH3-(CH2)3-CH3
C.CH3-CH2-CH(CH3)2 D.(CH3)2C(CH3)2

答

选D
烷烃沸点比较是支链越多沸点越低选项中D的支链最多烷基之间的斥力大沸点低