首页
A-LEVEL
全国热线
400-880-6200

A-Level化学有机反应机理搞不懂?

A-Level化学 Organic chemistry中比较难理解的就是反应机理(Mechanism)。要想理解反应机理,为大家总结17个必备定义哦!

Functional group

a group of atoms responsible for the characteristic reactions of an organic compound.

Homolytic fission

the splitting of a covalent bond where each atom retains one electron from the bonding pair.

Heterolytic fission

the splitting of a covalent bond where one atom retains both electrons from the bonding pair.

Free radical

an uncharged molecule with an unpaired electron.

A-Level化学有机反应机理搞不懂?

Initiation

an initial chemical reaction which triggers further reactions.

Propagation

a secondary reaction where there is no net gain or loss of free radicals.

Termination

the final step in a chain reaction where a reactive intermediate is rendered inactive.

Nucleophile

a molecule or substance that donates electrons.

Electrophile

a molecule or substance that acts as an electron pair acceptor.

Addition

a reaction where two or more molecules react to form a larger molecule.

Substitution

a reaction where an atom or group is replaced by another atom or group.

Elimination

a reaction in which two substituents are removed from a molecule in a mechanism with one or two steps.

Hydrolysis

the splitting up of a compound or molecule using water.

Hydrolysis

the splitting up of a compound or molecule using water.

Condensation

the formation of a compound with the release of water.

Oxidation

the formation of a compound with the release of water.

Reduction

gain of electrons.

以上就是小编为大家整理的关于A-Level化学考试有机反应机理要点,希望对大家有所帮助。更多A-Level考试题目下载、A-Level成绩查询网站等问题可以咨询我们。


 . '文章底图' .
点击关注
课窝考试网(http://www.ikewo.cn)声明
本站凡注明原创和署名的文章,未经课窝考试网许可,不得转载。课窝考试网的部分文章素材来自于网络,版权归原作者所有,仅供学习与研究,如果侵权,请提供版权证明,以便尽快删除。
文章页广告
下一篇
A Level化学的Atomic Structure考点解析

A-level考试报名须知是必须要懂得,这样在面对英国A-level入学考试的时候自己也知道应该怎么面对。小北整理了一些考试的相关资讯,一起去看看吧。

2020-12-30
相关文章
A-LEVEL在线试听课程
微信扫一扫
获取更多精彩资讯
更专业
更精彩
更快速
微信公众号
30天热搜
课窝公众号
课窝公众号
回到顶部