國中自然2上ch6-2生活中常見的元素
Quiz
•
Biology
•
8th Grade
•
Practice Problem
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Medium
翰林出版國中自然 翰林出版國中自然
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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
有關「金屬元素」及「非金屬元素」,下列哪一項敘述錯誤?
石墨為黑色不具延展性的固體,且具有導電性
金屬都是以固態存在,且為熱、電的良導體
汞為金屬元素,在常溫下為銀白色液體
硫可用來製作硫酸與用於煙火的黑火藥
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
關於金、銀、銅三種金屬的比較,下列敘述何者正確?
導電性最好的是金
延展性最好的是銀
電線主要的材料是銅
價格以銀最貴,銅最便宜
3.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
下列有關非金屬的通性敘述,哪一項錯誤?
常溫時,以固態、液態或氣態存在
大都為熱及電的不良導體
非金屬元素大都為銀灰色
固態的非金屬不具延展性,易敲碎
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
下列有關石墨的敘述,何者錯誤?
可導電的金屬元素
可作為碳鋅電池的電極
黑色,容易剝落
可做鉛筆的筆蕊
5.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
俗話說:「真金不怕火煉」,是因為金的哪種特性?
世界礦產區多,產量豐富
金富延展性,可以抽成細絲或壓成金箔
是一種導電與導熱性良好的金屬
金的性質安定,在高溫下也不易與其他物質反應
6.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
鋁製成的器具不易鏽蝕,此乃因為下列何項原因?
性質不活潑
呈銀白色,易反射光線
不易起氧化反應
表面生成一薄層氧化產物,質地緻密,能防止裡面的金屬氧化
7.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
碳元素在自然界中常以不同的型態存在,請問下列何者對不同型態碳的描述是錯誤的?
碳粉為暗紅色的粉末,常溫下極為安定
石墨具有良好的導電能力,常用來製造碳電極
活性碳可吸附雜質,常作為脫色劑、脫臭劑和水的濾清劑
鑽石是一種無色透明的碳結晶,硬度最高,可切割任何物質
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