
國二下理化Chap3-3 酸鹼的濃度 2025 0211
Authored by Sone Wang
Chemistry
8th Grade

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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
小杰以廣用試紙測試四種溶液的酸鹼度,則下列四種溶液中,何者可以使廣用試紙呈現黃色?
石灰水
氨水
氧化鈉水溶液
稀鹽酸
2.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
在純水中加入哪一種物質後,可使酚酞指示劑呈紅色反應?
醋酸
食鹽
氧化鈉
汽水
3.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
下列何者不能用以檢驗物質的酸鹼性?
廣用試紙
石蕊試劑
氧化亞鈷試紙
pH 計
4.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
廣用試紙在中性溶液中會呈何種顏色?
紅
黃
綠
藍
5.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
下列何者可用來判定水溶液是否為酸性?
水溶液只含有H⁺
水溶液只含有OH⁻
水溶液中[H⁺]>[OH⁻]
水溶液中[H⁺]<[OH⁻]
6.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
小軒檢測出海水樣品中的pH=9,試問海水的酸鹼性為何?
鹼性
酸性
中性
無法判斷
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
常溫下,小瑩使用pH計檢測四種水溶液的pH值,試問何者為鹼性?
3
5.2
7.0
9.5
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