• 2022-06-18
    比较(I)NH3, (II)CH3CH2NH2, (III)
    (CH3CH2)2NH, (IV)苯胺的碱性大小
    A: I>II>IV>III
    B: III> I>II>IV
    C: I>II>IV>III
    D: III>II>I>IV