問題詳情
21. 21.在
之平衡系中,加入下列何種化合物時溶液呈黃色?

(A)HCl
(B)NaOH
(C)NH
(D)Na2CO
(E)PCl5
參考答案
答案:B,C,D
難度:適中0.5
統計:A(0),B(0),C(0),D(0),E(0)
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