59. What reagents are used to dehydrate amides to nitriles? I.P2O5  IIPOCl3   IIISOCl2
(A)Ⅰ
(B)Ⅱ
(C)Ⅲ
(D)Ⅰ and  Ⅱ
(E) all of the above

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統計: A(0), B(1), C(1), D(1), E(16) #1037045

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