4-2_怎麼辨認水溶液的酸鹼

4-2_怎麼辨認水溶液的酸鹼

3rd Grade

44 Qs

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4-2_怎麼辨認水溶液的酸鹼

4-2_怎麼辨認水溶液的酸鹼

Assessment

Quiz

Science

3rd Grade

Practice Problem

Easy

Created by

Lorraine Li

Used 1+ times

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44 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

將新鮮的紫色高麗菜切成細絲後,放入熱水中浸泡,可以利用它的汁液檢驗水溶液的酸鹼性。

×

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

將紫色高麗菜汁加入不知名的水溶液中,水溶液呈現偏藍綠色,則可推測水溶液為鹼性。

×

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

水溶液只能分成酸性水溶液和鹼性水溶液兩種。

×

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

水溶液依照酸鹼性來區分,可分成酸性水溶液、鹼性水溶液和中性水溶液。

×

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

我們可以利用眼睛、鼻子來觀察水溶液的特質,例如顏色、溶解情形、氣味等。

×

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

我們可以利用人的視覺、嗅覺等感官來觀察並分辨未知水溶液的性質,最準確的辨別方式則是利用嘴巴直接嘗水溶液。

×

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

我們不能直接用舌頭判斷出水溶液的酸鹼性,但可以用手接觸水溶液來判斷酸鹼性。

×

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