重溫酸和鹼
Quiz
•
Science
•
8th Grade
•
Medium
Ka Chun Kennie Huynh
Used 21+ times
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20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
邊一種物質帶有酸性?
燒賣
茶
香口膠
朱古力
Answer explanation
茶含有茶酸。
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
邊一種物質含有鹼?
潔廁劑
洗髮水
唾液
DNA
Answer explanation
唾液是弱鹼。
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
鹼帶有啲咩特別既性質?
滑溜既觸感
酸味
pH值低
帶腐蝕性
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
處理酸和鹼既時候,下列邊個安全措施係錯?
戴安全手套及眼鏡
用試管盛載溶液時不要超過一半的份量
必須在煙櫥下進行實驗
不要胡亂把溶液與其他化學品混合
Answer explanation
稀釋了的酸或鹼可以不用在煙櫥下進行實驗
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
把藍色石蕊試紙加上氫氯酸,試紙的顏色會
保持藍色
轉為白色
轉為粉紅色
轉為紅色
Answer explanation
藍色石蕊試紙遇上酸會變紅色。
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
紅色石蕊試紙加上氫氧化鈉溶液,試紙顏色會
保持紅色
轉為藍色
轉為白色
轉為粉紅色
Answer explanation
紅色石蕊試紙遇鹼智轉為藍色。
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
什麼物質不會令任何石蕊試紙變色?
雨水
蒸餾水
口水
石灰水
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