請問三題有機
Which is the weakest nucleophile in polar aprotic solvents?
_ _ _ _
(a)I (b)Br (c)CH3O (d)F
補習班答案寫A
非質子極性溶劑例如DMSO不就是有利於SN2,例如KBr的話..溶劑可幫忙溶合K+,那這題為
什麼不是D
Predict the base peakof mass spectrum for (CH3)CCl
(1)m/z 15 (2)m/z 43 (3)m/z 57 (4)m/z 77
補習班答案寫3
這題要怎麼想??
Which cpd would have the lowest boiling point?
(1)CH3CH2CH2NH2
(2)CH3CH2NHCH3
(3)(CH3)3N
(4)(CH3)3NH+Cl-
補習班答案寫3
我想說第三跟第四個,是不是說第三個跟第四都沒有氫鍵,但第四個的dipole比較大,
所以選第三?????
以上三題我不知道該怎麼解釋
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推
03/20 23:03, , 1F
03/20 23:03, 1F
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03/20 23:06, , 2F
03/20 23:06, 2F
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03/20 23:06, , 3F
03/20 23:06, 3F
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03/20 23:07, , 4F
03/20 23:07, 4F
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03/21 00:39, , 5F
03/21 00:39, 5F
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03/21 00:40, , 6F
03/21 00:40, 6F
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03/21 07:46, , 7F
03/21 07:46, 7F
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