英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字，中文词皆可：

hudibras    
n. 人名

人名


请选择你想看的字典辞典：
单词字典翻译
Hudibras查看　Hudibras　在百度字典中的解释百度英翻中〔查看〕
Hudibras查看　Hudibras　在Google字典中的解释Google英翻中〔查看〕
Hudibras查看　Hudibras　在Yahoo字典中的解释Yahoo英翻中〔查看〕

安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • 13. 8: Structure and Nomenclature of Aromatic Compounds
    The benzene ring has a methyl (CH 3) group The compound is therefore named as a derivative of toluene The bromine atom is on the fourth carbon atom, counting from the methyl group The compound is p -bromotoluene or 4-bromotoluene The benzene ring has two nitro (NO 2) groups in the first and third positions
  • Benzene ring with CH3 is called - Brainly. in
    Explanation: A number of aromatic molecules are known by common names; for instance, benzene with a —CH3 group attached is called "toluene"; benzene with an —NH2 group attached is called "aniline"; a benzene with a —CO2H group is called "benzoic acid," etc The benzene ring has a methyl (CH 3) group The compound is therefore named as a derivative of toluene
  • 15. 3: Nomenclature of Benzene Derivatives - Chemistry LibreTexts
    Unlike aliphatic organics, nomenclature of benzene-derived compounds can be confusing because a single aromatic compound can have multiple possible names (such as common and systematic names) be …
  • Organic Chem Aromatic Rings Flashcards | Quizlet
    Study with Quizlet and memorize flashcards containing terms like benzene ring with CH3, benzene ring with OH, benzene ring with O-CH3 and more
  • 13. 8 Structure and Nomenclature of Aromatic Compounds | The . . .
    In the International Union of Pure and Applied Chemistry (IUPAC) system, aromatic hydrocarbons are named as derivatives of benzene Figure 13 6 “Some Benzene Derivatives” shows four examples In these structures, it is immaterial whether the single substituent is written at the top, side, or bottom of the ring: a hexagon is symmetrical, and therefore all positions are equivalent
  • 15. 1: Naming the Benzenes - Chemistry LibreTexts
    A compound containing a benzene ring which has one or more alkyl substituents is called an arene A phenyl group consists of a benzene ring with one of its hydrogens removed Figure 15 1 1: Two ways of representing a phenyl group You should memorize the structures and formulas shown in Figure 16
  • Why is -OCH3 more strongly activating than -CH3 in . . .
    Facts I know: 1) More the electron density in benzene ring, the faster the reaction 2) Lone pair on -OCH3 group undergoes resonance and makes ortho-para positions electron rich, and so does -CH3 by
  • $ {CH3}$ attached to a benzene ring | StudyX
    Step 1: Identify the substituents attached to the benzene ring The image shows a series of benzene rings, each with a different substituent





中文字典-英文字典  2005-2009