問題詳情
29. A sample of a white solid is known to be NaHCO3, AgNO3, Na2S, or CaBr2. Which 0.1 M aqueous solution can be used toconfirm the identity of the solid?
(A) NH3(aq)
(B) HCl(aq)
(C) NaOH(aq)
(D) KCl(aq)
(E) CH3COOH(aq)
參考答案
答案：B
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)
用户評論
【hm24753576】評論
NaHCO3 → CO2冒出AgNO3 → AgCl沉澱Na2S → H2S有惡臭CaBr2 → 沒有特別反應