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Form 2 Chapter 6 Properties of Acid Alkali

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

State the taste of this fruit?

a)

Tastles

b)

Bitter

c)

Sour

d)

Sweet

2.

Which of the properties of alkaline substance is NOT TRUE?

a)

taste bitter

b)

slippery

c)

turn red litmus paper to blue

d)

turn blue litmus paper to red

3.

What is the meaning of the above hazard warning symbol?

a)

Corrosive

b)

Explosive

c)

Toxic

d)

Radioactive

4.

Which of the following about properties of acid is not true?

a)

pH less than 7

b)

Tastes bitter

c)

Corrosive

d)

Turns blue litmus paper to red

5.

Which of the following will change the red litmus paper to blue?

a)

Sodium hydroxide

b)

Hydrochloric acid

c)

Sulphuric acid

d)

Nitric acid

6.

Sodium hydroxide is used

a)

to make fertilisers.

b)

to make battery.

c)

to cure gastritis.

d)

to make detergent.

7.

Strong acids and alkalis are...

a)

Sour

b)

Sweet

c)

Corrosive/Caustic

d)

Burn litmus paper

8.

What is the pH of distilled water?

a)

pH 12

b)

pH 3

c)

pH 8

d)

pH 7

9.

Which of the following about properties of acid is not true?

a)

pH less than 7

b)

Tastes bitter

c)

Corrosive

d)

Turns blue litmus paper to red

10.

Acid reacts with metal to produce ___________ gas.

a)

oxygen

b)

carbon dioxide

c)

hydrogen

d)

nitrogen dioxide

11.

Which of the following will change the red litmus paper to blue?

a)

Sodium hydroxide

b)

Hydrochloric acid

c)

Sulphuric acid

d)

Nitric acid

12.

What is the property of the substance based on the change in the colour of litmus paper?

a)

alkaline

b)

acidic

c)

neutral

13.

What is the property of the substance based on the change in the colour of litmus paper

a)

neutral

b)

alkaline

c)

acidic

14.

What is the property of the substance based on the change in the colour of litmus paper?

a)

acidic

b)

alkaline

c)

neutral

15.

Why does toothpaste have alkaline properties?

a)

toothpaste can make our teeth become healthy

b)

toothpaste can neutralise acid in the mouth

16.

Acids have pH value

a)

Less than 7

b)

7

c)

More than 7

17.

Acids has ____________ taste.

a)

bitter

b)

sour

c)

no

18.

Lime water in the laboratory has pH value more than 7.

a)

Yes

b)

No

19.

Sulphuric acid is used in car battery.

a)

Yes

b)

No

20.

Detergents have pH more than 7.

a)

True

b)

False