自然2-3

自然2-3

8th Grade

19 Qs

quiz-placeholder

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自然2-3

自然2-3

Assessment

Quiz

English

8th Grade

Medium

Created by

林琳林 林琳林

Used 4+ times

FREE Resource

19 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

下列何者是漂白水的主要成分?
氫氧化鈉 
次氯酸鈉 
雙氧水 
食鹽水

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

下列哪一種金屬無法以煤焦把它從金屬礦中還原出來?
銅 
鋁 
鉛 

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

金屬錫可由錫礦中的 SnO2 與煤焦反應而得,其反應式為:SnO2+2C → Sn+2CO,則煤焦在此反應的作用為何?(註:煤焦的主要成分為碳(C))〔98. 基測Ⅰ〕
氧化劑 
還原劑 
催化劑 
溶劑

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

不鏽鋼含有下列哪些金屬?
鈉、鉀 
鎢、釩 
鎳、鉻 
鈣、鎂

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

除了碳之外,若不考慮成本,理論上還有哪一個元素可以將氧化鐵還原?
Na 
Au 
Pb 
Hg

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

下列何者不是常見的氧化劑?
次氯酸鈉 
過氧化氫 
二氧化硫 
氧氣

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

煤焦常用來冶煉金屬,其原因下列何者錯誤?
價格便宜 
容易取得 
可冶煉所有的金屬 
碳可還原活性小於碳的金屬

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