
2017-2018_S5_1st_exam
Authored by SZE LAM
Chemistry
11th Grade
Used 2+ times

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24 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪種或哪些金屬通常以元素的形態在自然界存在?
(1) 銅
(2) 銀
(3) 鉑
只有 (2)
只有 (3)
只有 (1) 和 (2)
只有 (2) 和 (3)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
鐵可從下列哪種金屬礦石中提取出來?
輝銀礦
赤鐵礦
方鉛礦
鋁土礦
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪種或哪些化合物不受加熱的影響?
(1) SnO
(2) MgO
(3) HgO
只有 (1)
只有 (3)
只有 (1) 和 (2)
只有 (2) 和 (3)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪種金屬不適合用來製造貯存食物和飲料的容器或器皿?
鋁
銅
鉛
錫
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪項陳述不正確?
當鈉長時間暴露於空氣中,它的表面會變得暗啞。因為鈉與空氣中的氧產生反應,生成色澤暗淡的氧化物層。
銀、金和鉑在金屬活性序中的位置相近,加熱後,他們都不會與氧產生反應。
在氧氣中燃燒汞時,會產生黃色火花,並在表面生成黑色的粉末。
在氧氣中加熱鋁時,鋁會燃燒,並生成白色粉末。
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
地殼中蘊藏量最高的金屬是
鋁。
銅。
鐵。
汞。
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪種金屬不是在遠古時代已被發現?
鈹
銅
金
錫
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