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國二下理化Chap3-3 酸鹼的濃度 2025 0211

Authored by Sone Wang

Chemistry

8th Grade

國二下理化Chap3-3 酸鹼的濃度 2025 0211
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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?

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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