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WorksheetsForm 2 Science, Acids and Alkalis
Total questions: 20
Worksheet time: 17mins
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 a strong alkali?
a)
Sodium hydroxide
b)
Potassium nitrate
c)
Sodium nitrate
d)
Potassium sulphate
5.
Which of the following is NOT a strong acid?
a)
Ethanoic acid
b)
Nitric acid
c)
Hydrochloric acid
d)
Sulphuric acid
6.
What gas is released when an ammonium salt is heated together with an alkali?
a)
Sulphur
b)
Ammonia
c)
Carbon dioxide
d)
Oxygen
7.
What is the pH value of vinegar?
a)
1
b)
7
c)
4
d)
11
8.
What is the pH value of toothpaste?
a)
1
b)
7
c)
14
d)
8
9.
What is the pH value of pure water?
a)
7
b)
14
c)
4
d)
8
10.
What type of acid can be found in a car battery?
a)
Ethanoic acid
b)
Nitric acid
c)
Hydrochloric acid
d)
Sulphuric acid
11.
What type of acid can be found in carbonated drinks?
a)
Carbonic acid
b)
Tartaric acid
c)
Citric acid
d)
Sulphuric acid
12.
What method is used to study the neutralisation reaction between an acid and an alkali?
a)
Evaporation
b)
Titration
c)
Sublimation
d)
Electrolisis
13.
What is the process that takes place when an acid reacts with an alkali?
a)
Titration
b)
Evaporation
c)
Neutralisation
d)
Sublimation
14.
In a neutralisation reaction, what is the function of the indicator?
a)
To indicate that the mixture is neutral
b)
To indicate that hot water should be added
c)
To indicate that the flask should be shaken
d)
To indicate that a precipitate is formed
15.
What is the product of a neutralisation reaction?
a)
Acid and alkali
b)
Salt and water
c)
Hydrogen and oxygen
d)
Bromine and chlorine
16.
In a neutralisation reaction, dilute hydrochloric acid is slowly added to a sodium hydroxide solution. What is the colour change at the end point if the indicator used is phenolphthalein?
a)
From colourless to pink
b)
From blue to green
c)
From pink to colourless
d)
From green to blue
17.
In a neutralisation reaction, dilute nitric acid is slowly added to a potassium hydroxide solution. What is the colour change at the end point if the indicator used is the universal indicator?
a)
From colourless to pink
b)
From green to blue
c)
From pink to colourless
d)
From blue to green
18.
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
19.
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
20.
Which chemical can be used to neutralise a wasp sting?
a)
Slaked lime
b)
Alum
c)
Shampoo
d)
Vinegar
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