問題詳情
95. 過錳酸鉀滴定法測定鈣質含量實驗中,下列敘述何者錯誤?
(A)過錳酸鉀標準液為還原劑,需先以草酸鈉氧化劑標定其力價
(B)屬於氧化還原滴定
(C)滴定時需控制在低溫(10℃左右)水浴中使鈣沈澱完整
(D)不需要準備指示劑。
(A)過錳酸鉀標準液為還原劑,需先以草酸鈉氧化劑標定其力價
(B)屬於氧化還原滴定
(C)滴定時需控制在低溫(10℃左右)水浴中使鈣沈澱完整
(D)不需要準備指示劑。
參考答案
答案:A,C
難度:非常困難0
統計:A(1),B(0),C(0),D(1),E(0)
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