問題詳情
19. 下列何反應所產生之氣體遇水呈酸性？
(A)電解NaCl水溶液
(B)NH4Cl(s)＋Ca(OH)2(s)
(C)錫和熱的氫氧化鈉溶液作用
(D)銅和濃硫酸共熱
(E)銅和濃硝酸反應。
(A)電解NaCl水溶液
(B)NH4Cl(s)＋Ca(OH)2(s)
(C)錫和熱的氫氧化鈉溶液作用
(D)銅和濃硫酸共熱
(E)銅和濃硝酸反應。
參考答案
答案：D,E
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)
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