
第54節十分鐘小測
Authored by QTSSCI QTSSCI
Science
1st Grade

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
5 下列哪項有關比色法的陳述不正確?
A 比色法可用於測定溶液中有色物種的濃度。
B 可從吸光度測定溶液中有色物種的濃度。
C 使用比色計時,應選擇與有色物種顏色相同的濾光片。
D 為求出溶液中有色物種的濃度,必須繪製一校準曲線。
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A 與托倫斯試劑共熱
B 與2,4-二硝基苯肼混合
C 紅外光譜法
D 與酸化重鉻酸鉀水溶液共熱
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A CH3CH2+
B CH3CH2CO+
C CH3CH2COO+
D CH3CH2COOCH2+
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