作者yanpoupou (癢婆婆 /c\)
看板Chemistry
標題[問題] 想請問幾題有機化學
時間Sun Apr 29 01:50:59 2007
1.以下何種cpds的沸點最高?
A.m-dichlorobenzene
B.o-dichlorobenzene
C.p-dichlorobenzene
D.toluene
2.Which of the following undergoes SN1 rxn with methanol most rapidly?
A. PhCH2Br B. PhCH2CH2Br C. PhCH2=CHBr D. PhBr
O
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3.In electrophilic aromatic substitution a ─ C ─CH3 substituent on the
aromatic ring is:
A.an activator and an o,p-director
B.an activator and a m-director
C.a deactivator and a m-director
D.a deactivator and an o,p-director
4.In electrophilic aromatic substitution rxns a chlorine substituent is...
A.a deactivator and an o,p-director
B.an activator and an o,p-director
C.a deactivator and a m-director
先謝過大家了...有點搞不清楚
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◆ From: 125.225.96.141
※ 編輯: yanpoupou 來自: 125.225.96.141 (04/29 01:54)
1F：→ yanpoupou:想請問一下 答案CDCB 正確嗎... 04/29 02:04
2F：推 flowerkid:1.A 2.A 3.C 4.A .....有錯請指正 04/29 02:05
3F：→ yanpoupou:第一題看極性的話 是B嗎@@ 04/29 02:10
4F：推 flowerkid:更正1.B o-dichlorobenzene沸點最高 04/29 02:12
5F：推 chiahaug:1.b 2.a 3.c 4.a 04/29 06:57
6F：→ greylag:chiahaug板友正確 05/01 19:51