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Online Tests
Chemistry 10th Class English Medium Unit 15 Online Test MCQs With Answers
Question # 1
Sea water in unfit for drinking purpose die to the presence of.
Choose an answer
Salts
Algae
Fishes
All of them
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Question # 2
A sea level the boiling point of water is.
Choose an answer
0
o
C
98
o
C
100
o
C
110
o
C
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Question # 3
Which one of the diseases causes severe diarrhea and can be fatal?
Choose an answer
Jaundice
Dysentery
Cholera
Typhoid
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Question # 4
The boiling point of water is.
Choose an answer
100
o
C
4
o
C
0
o
C
25
o
C
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Question # 5
Chemical formula of hypochlorous acid is.
Choose an answer
HCl
HOCl
H
2
CO
3
HF
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Question # 6
Which is not a heavy metal.
Choose an answer
Cadmium
Lead
Zinc
Murcury
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Question # 7
The heat capacity of water is greater than rocks.
Choose an answer
4 times
5 times
6 times
7 times
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Question # 8
Which one of the following diseases causes liver inflammation?
Choose an answer
Typhoid
Jaundice
Cholera
Hapatitis
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Question # 9
Temporary hardness is because of .
Choose an answer
Ca(HCO
3
)
2
CaCO
3
MgCO
3
MgSO
4
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Question # 10
Which salt cause permanent hardness in water is:
Choose an answer
Ca(HCO
3
)
2
Mg(HCO
3
)
2
CaCl
2
KCl
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Question # 11
Water has a maximum density at .
Choose an answer
10
o
C
0
o
C
4
o
C
100
o
C
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Question # 12
The lives of aquatic plants and animals are indirectly related to concentration of dissolved gas in water.
Choose an answer
Nitrogen
Hydrogen
Oxygen
Carbon
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Question # 13
Temporary hardness in water can he removed by.
Choose an answer
Boiling Method
Using washing soda
Using sodium zeolite
All of them
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