作者cestlavia (cestlavia)
看板post-b.test
标题[问题]有机 protic and aprotic
时间Thu May 30 21:12:48 2013
15) Protic and aprotic solvents are very similar as solvents
except fortheir 15) ______
A) dielectric constant.
B) ability to stabilize anions by hydrogen bonding.
C) ability to stabilize cations by hydrogen bonding.
D) polarity.
E) ability to stabilize cations with unshared pairs of electrons.
答案是 b 可是为什麽？ 那c为什麽不行选
烦请高手解答
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1F：→ senonno1:举个例子protic溶剂,ex:ROH上的H可被anion所吸引而产生氢 05/30 21:25
2F：→ senonno1:键,像这样>>ROH:::A-,:::代表氢键,所以本题可看成protic 05/30 21:27
3F：→ senonno1:型溶剂会产生氢键的样子来解答 05/30 21:28
4F：→ cestlavia:我懂了 谢谢senonnol~~真的很感谢 05/30 21:32