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Worksheets

Acids and alkalis

Total questions: 20

Worksheet time: 9mins

Name
Class
Date
1.

The pH of pure water

a)

5.6

b)

7.0

c)

8.1

d)

0.0

2.

What is the meaning of the above hazard warning symbol?

a)

Corrosive

b)

Explosive

c)

Toxic

d)

Radioactive

3.

Acid in our stomach:

a)

Hydrochloric acid

b)

Sulfuric acid

c)

Acetic acid

d)

Carbonic acid

4.

Acid in soft drink:

a)

Hydrochloric acid

b)

Sulfuric acid

c)

Acetic acid

d)

Carbonic acid

5.

Acid in car battery:

a)

Hydrochloric acid

b)

Sulfuric acid

c)

Acetic acid

d)

Carbonic acid

6.

Acid in vinegar:

a)

Hydrochloric acid

b)

Sulfuric acid

c)

Acetic acid

d)

Carbonic acid

7.

Which substance is alkali?

a)

Toothpaste

b)

Vinegar

c)

Lemon juice

d)

Soft drink

8.

Which substance is avid?

a)

Toothpaste

b)

Vinegar

c)

Soap

d)

Ammonia

9.

The color of litmus in acid:

a)

Red

b)

Blue

c)

Purple

d)

Green

10.

The color of litmus in alkali:

a)

Red

b)

Blue

c)

Purple

d)

Green

11.

The color of litmus in neutral solution:

a)

Red

b)

Blue

c)

Purple

d)

Green

12.

The color of universal indicator in pure water:

a)

Red

b)

Blue

c)

Purple

d)

Green

13.

Acids taste .....

a)

sour

b)

bitter

c)

sweet

d)

umami

14.

Rain water is slightly acidic. What is its pH?

a)

1.0

b)

5.6

c)

7.0

d)

8.2

15.

Indigestion can be treated by drinking ....

a)

water

b)

antacid

c)

vinegar

d)

sodium hydroxide

16.

Reaction between acid and alkali producing salt and water:

a)

Combustion

b)

Neutralization

c)

Precipitation

d)

Decomposition

17.

Something that can be used to identify acid/alkali:

a)

Indicator

b)

Oxidator

c)

Reductor

d)

Terminator

18.

The color of universal indicator in hydrochloric acid:

a)

Red

b)

Blue

c)

Purple

d)

Green

19.

The color of universal indicator in sodium hydroxide:

a)

Red

b)

Yellow

c)

Purple

d)

Green

20.

pH of alkali:

a)

0

b)

7

c)

below 7

d)

above 7