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化學CH4-5

Authored by 賴美娟 賴美娟

Chemistry

11th Grade

Used 4+ times

化學CH4-5
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35 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 4 pts

由測量生化需氧量(BOD)可判定

水的硬度

水中有機物的汙染程度

水中含氧量

水的酸鹼程度

2.

MULTIPLE CHOICE QUESTION

1 min • 4 pts

造成湖泊及河流優養化的原因是含有哪些元素的化合物,排入水中後,促進藻類快速繁殖,耗盡水中溶氧所造成?

氮及磷

氫及氧

 氧及磷

 鈣及鎂

3.

MULTIPLE CHOICE QUESTION

1 min • 4 pts

下列何者為我國用於消毒自來水的化學物質?

雙氧水

氯氣

氧氣

碘酒

4.

MULTIPLE CHOICE QUESTION

1 min • 4 pts

蒸餾是利用下列何種性質的差異,來達成分離物質的目的?

密度

沸點

熔點

溶解度

5.

MULTIPLE CHOICE QUESTION

1 min • 4 pts

下列何者為天然氣的主要成分?

甲烷

乙烷

丙烷

丁烷

6.

MULTIPLE CHOICE QUESTION

1 min • 4 pts

液化石油氣其主要成分為?

甲烷

丙烷和丁烷

一氧化碳和氫氣

與汽油成分相同

7.

MULTIPLE CHOICE QUESTION

1 min • 4 pts

粗鹽中因含有哪種鹽類而具有苦味?

氯化鈣

氯化鎂

硫酸鈣

硫酸鎂

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