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第54節十分鐘小測

Authored by QTSSCI QTSSCI

Science

1st Grade

第54節十分鐘小測
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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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

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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

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A      CH3CH2+

B      CH3CH2CO+

C      CH3CH2COO+

D      CH3CH2COOCH2+

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