問題詳情
10. 插入兩電極並通電，會向負極流動的膠質粒子，若改為加入少許電解質溶液，欲使其凝聚析出，則下列何種電解質最有效？
(A) NaNO3
(B)MgSO4
(C) Al2 (SO4)3
(D)Na3PO4
(A) NaNO3
(B)MgSO4
(C) Al2 (SO4)3
(D)Na3PO4
參考答案
答案：D
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)
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