15. The mass spectrum of alcohols often fail to exhibit detectable M peaks but instead show relatively large_peaks.
(A) M+l
(B) M+2
(C) M-16
(D)M-17
(E) M-18

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統計: A(0), B(1), C(5), D(1), E(3) #1121870

私人筆記 (共 1 筆)

私人筆記#2045079
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有OH基,易脫水,所以分子量M減18
(共 18 字,隱藏中)
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