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WorksheetsSCIENCE FORM 2
Total questions: 22
Worksheet time: 21mins
Name
Class
Date
1.
Which technique stated below is incorrect in the use of a microscope?
a)
Place the microscope down gently
b)
clean the lenses with tissue paper
c)
always start viewing a specimen with both eyes open
d)
always view a specimen with both eyes open
2.
The smallest organism known to man is made up of..
a)
one cell
b)
two cells
c)
three cells
d)
many cells
3.
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
4.
What gas is released when an acid reacts with an reactive metal?
a)
Oxygen
b)
Hydrogen
c)
Helium
d)
Bromine
5.
What gas is released when an acid reacts with an reactive metal?
a)
Oxygen
b)
Hydrogen
c)
Helium
d)
Bromine
6.
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
7.
Which of the following is a strong alkali?
a)
Sodium hydroxide
b)
Potassium nitrate
c)
Sodium nitrate
d)
Potassium sulphate
8.
Which of the following is NOT a strong acid?
a)
Ethanoic acid
b)
Nitric acid
c)
Hydrochloric acid
d)
Sulphuric acid
9.
What gas is released when an ammonium salt is heated together with an alkali?
a)
Sulphur
b)
Ammonia
c)
Carbon dioxide
d)
Oxygen
10.
What is the pH value of vinegar?
a)
1
b)
7
c)
4
d)
11
11.
What is the pH value of vinegar?
a)
1
b)
7
c)
4
d)
11
12.
What is the pH value of toothpaste?
a)
1
b)
7
c)
14
d)
8
13.
What is the pH value of pure water?
a)
7
b)
14
c)
4
d)
8
14.
What type of acid can be found in a car battery?
a)
Ethanoic acid
b)
Nitric acid
c)
Hydrochloric acid
d)
Sulphuric acid
15.
What type of acid can be found in carbonated drinks?
a)
Carbonic acid
b)
Tartaric acid
c)
Citric acid
d)
Sulphuric acid
16.
What method is used to study the neutralisation reaction between an acid and an alkali?
a)
Evaporation
b)
Titration
c)
Sublimation
d)
Electrolisis
17.
What is the process that takes place when an acid reacts with an alkali?
a)
Titration
b)
Evaporation
c)
Neutralisation
d)
Sublimation
18.
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
19.
What is the product of a neutralisation reaction?
a)
Acid and alkali
b)
Salt and water
c)
Hydrogen and oxygen
d)
Bromine and chlorine
20.
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
21.
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
22.
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
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