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Worksheets

acid and alkalis

Total questions: 27

Worksheet time: 21mins

Name
Class
Date
1.
Which of the following is NOT a property of an acid?
a)
Tastes sour
b)
Corrosive
c)
Changes the colour of blue litmus paper to red
d)
Has a pH value higher than 7
2.
What gas is released when an acid reacts with an reactive metal?
a)
Oxygen
b)
Hydrogen
c)
Helium
d)
Bromine
3.
Which of the following is NOT a property of an alkali?
a)
Tastes bitter
b)
Corrosive
c)
Changes the colour of blue litmus paper to red
d)
Has a pH value higher than 7
4.
Which of the following is NOT a strong acid?
a)
Ethanoic acid
b)
Nitric acid
c)
Hydrochloric acid
d)
Sulphuric acid
5.
What gas is released when an ammonium salt is heated together with an alkali?
a)
Sulphur
b)
Ammonia
c)
Carbon dioxide
d)
Oxygen
6.
What is the pH value of vinegar?
a)
1
b)
7
c)
4
d)
11
7.
What is the pH value of toothpaste?
a)
1
b)
7
c)
14
d)
8
8.
What is the pH value of pure water?
a)
7
b)
14
c)
4
d)
8
9.
What type of acid can be found in a car battery?
a)
Ethanoic acid
b)
Nitric acid
c)
Hydrochloric acid
d)
Sulphuric acid
10.
What type of acid can be found in carbonated drinks?
a)
Carbonic acid
b)
Tartaric acid
c)
Citric acid
d)
Sulphuric acid
11.
What method is used to study the neutralisation reaction between an acid and an alkali?
a)
Evaporation
b)
Titration
c)
Sublimation
d)
Electrolisis
12.
What is the process that takes place when an acid reacts with an alkali?
a)
Titration
b)
Evaporation
c)
Neutralisation
d)
Sublimation
13.
What is the salt formed when nitric acid is added to potassium hydroxide?
a)
Sodium chloride
b)
Potassium nitrate
c)
Sodium nitrate
d)
Potassium chloride
14.
What is the salt formed when hydrochloric acid is added to sodium hydroxide?
a)
Potassium nitrate
b)
Sodium nitrate
c)
Sodium chloride
d)
Potassium chloride
15.

Acids taste

a)

fishy

b)

salty

c)

sour

d)

sweet

16.

The name of acid in lemon juice is

a)

ethanoic

b)

lemonic acid

c)

citric acid

d)

sulfuric acid

17.

Which one of these is an acid?

a)

salt water

b)

oven cleaner

c)

pure water

d)

vinegar

18.

Which one of these is an alkali?

a)

lemon juice

b)

oven cleaner

c)

sugar solution

d)

vinegar

19.

The colour of litmus in sulfuric acid is:

a)

blue

b)

green

c)

purple

d)

red

20.

The pH of pure water is

a)

1

b)

5

c)

7

d)

11

21.

The colour of universal indicator in a substance that is very acidic is:

a)

green

b)

orange

c)

purple

d)

red

22.

The pH of a substance that is slightly alkaline could be

a)

1

b)

5

c)

9

d)

11

23.

Universal indicator is added to a solution. The solution turns purple. The solution contains

a)

citric acid

b)

hydrochloric acid

c)

sodium hydroxide solution

d)

only water

24.

The reaction between an acid and an alkali is

a)

acidification

b)

condensation

c)

evaporation

d)

neutralisation

25.

An acid reacted with an alkali to form a salt and water. Which of these are the reactants?

a)

acid and alkali

b)

acid and salt

c)

alkali and water

d)

salt and wate

26.

Nitric acid reacts with sodium hydroxide solution to form a salt and water. Which of the following is the correct word equation?

a)

nitric acid + sodium hydroxide + water

b)

nitric acid + sodium hydroxide --> sodium nitrate + water

c)

salt + water --> nitric acid + sodium hydroxide

d)

sodium nitrate + water --> nitric acid + sodium hydroxide

27.

Which of the following is a base?

a)

citric acid

b)

copper oxide

c)

pure water

d)

vinegar