
五下-水溶液及酸鹼
Other
5th Grade
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14 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
將紫色高麗菜汁與藍色石蕊試紙分別與石灰水反應,兩者的顏色變化會相同。
對
錯
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
醋到入含有食鹽的水容液混合後,再加入紫色高麗菜汁,水容液可能呈獻偏紫色。
對
錯
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
將酸性與鹼性的水溶液混合後,滴入紫色高麗菜汁,如果水溶液偏紅色,再滴入一些鹼性水溶液,混合液的顏色會漸漸偏紫色。
對
錯
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
將小蘇打水與砂糖水混合後,用紅色石蕊試紙測試,石蕊試紙會呈獻偏什麼顏色?
紫色
黃色
藍色
紅色
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪兩種水溶液混合後,滴入紫色高麗菜汁,混合夜可能會呈現偏紫色?
砂糖水+醋
檸檬酸+食鹽水
檸檬酸+石灰水
石灰水+小蘇打水
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
將檸檬酸與某水溶液混合後,以紫色高麗菜汁測試,水溶液呈現偏紫色,請問某水溶液的酸鹼性可能是什麼?
酸性
鹼性
中性
條件不足,無法判斷
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
將紫色高麗菜汁與藍色石蕊試紙分別與石灰水反應,兩者的顏色變化會相同。
對
錯
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