A. ①②③④
B. ③④②①
C. ④③②①
D. ④②③①
[单选题]按照次序规则判断,-CH2OH、-CH2C(CH3)3、-CH2NH2的优先顺序为()。A . -CH2OH>-CH2NH2>-CH2C(CH3)3B . -CH2NH2>-CH2OH>-CH2C(CH3)3C . -CH2C(CH3)3>-CH2NH2>-CH2OHD . -CH2NH2>-CH2C(CH3)3>-CH2OH
用下列哪个试剂可将CH3CH=CHCH2CH2CHO还原为 CH3CH2CH2CH2CH2 CH2OHA. NaBH4B. LiHAl4C. H2+PdD. N
CH3-|||-CH3CHCHCHCH2CH3-|||-CH3 CH2CH3 2.CH3-|||-CH3CHCHCHCH2CH3-|||-CH3 CH2CH
下列化合物沸点从小到大次序是()。(a)CH3CH2CH2COOH;(b)CH3CH2CH2CH3;(c)CH3CH2CH2CH2OH;(d)CH3CH2CH2
CH2OH C. OH D. CH2CC2H5-|||-CH3 OH最易发生脱水成烯反应的 ____
+HBrarrow b +(Cl)_(2) 高温-|||-c. □+ -Cl2 Cl4 d -CH2CH3 +Br2-FeBr3-|||-CH(CH3)2-|
下列基团按次序规则顺序排列,由大到小的顺序是( ) (1) —OH (2) —CH=CH2(3) —C6H5 (4) —C(CH3) 3A. (1)>(2)>(
为了合成烯烃 [单选题]-|||-A、-|||-CH3CH2CH CH2CH2OH-|||-B、-|||-CH3CH2CH22CHCH3-|||-OH-|||-
下列化合物或基团不存在共轭体系的是:A.CH2=CH-CH2-CH=CH2B.CH2=CH-CH+-CH=CH2C.H2=CCH3-CH=CH2D.CH2=CH
按照次序规则,下列基团1-CHO;2 –NH2;3-CH2Cl; 4-CH2OH从大到小的排列顺序是()A. ②›③›④›①B. ③›②›④›①C. ②›③›①