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Acid and Base Identification

Authored by Charles Martinez

Chemistry

9th - 11th Grade

NGSS covered

Acid and Base Identification
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21 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Bases will turn litmus paper __________, while acids will turn litmus paper __________.

blue.....red
red.....blue
pink.........colourless
colourless..........pink

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The pH of a strong acid would be:

1-2
5-6
8-9
12-13

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The pH of a strong base would be:

1-2
5-6
8-9
13-14

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Indicators are substances that changes color when exposed to solutions with different pH values.

True

False

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

What is the color of litmus indicator in a solution with pH 3?

blue

red

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

What is the color of phenolphthalein in a solution with pH 12?

colorless

pink

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

What is the color of phenolphthalein in a solution with pH 6?

colorless

pink

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