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10th Class Chemistry Chapter 15 Water English Medium KPK Boards Online Mcqs MCQs With Answers
Question # 1
Rapid growth of algae in water bodies in because of detergent having.
Choose an answer
Carbonat salt
Sulphonic acid
Sulphat salt
Phosphate salt
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Question # 2
Which disease causes bone and tooth damage?
Choose an answer
Fluorosis
Hepatits
Cholera
Jaundice
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Question # 3
One H
2
O molecule can form hydrogen bonding with how many other H
2
O molecules?
Choose an answer
One
Two
Three
Four
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Question # 4
Which one of the following gases is used to destroy harmful bacteria in water.
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Iodine
Chlorine
Fluorine
Bromine
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Question # 5
Which of the following salt is soluble in water.
Choose an answer
NaCl
KCl
Na
2
SO
4
All of them
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Question # 6
Which one of the following diseases severe diarrhea and can be fatal?
Choose an answer
Joundice
Cholera
Dysentery
Typhoid
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Question # 7
The density of water is ................. at 4
o
C
Choose an answer
1 gcm
-1
2 gcm
-1
3 gcm
-1
4 gcm
-1
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Question # 8
Sodium zeolite is naturally occurring reason of .
Choose an answer
NaAl (SiO
3
)
2
Na
2
CO
3
CaCO
3
Na
2
SIO
3
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Question # 9
The freezing point of water is:
Choose an answer
10
o
C
100
o
C
0
o
C
46
o
C
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Question # 10
Water dissolves non-ionic compound by
Choose an answer
Ion-ion forces
Ion-dipole forces
Dipole -dipole forces
Hydrogen bonding.
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Question # 11
Temporary hardness can be removed by__________.
Choose an answer
Quick lime
Slaked lime
Lime stone
HCl
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Question # 12
Which one of the properties of water is responsible for rising of water plants?.
Choose an answer
Specific heat capacity
Surface tension
Excellent solvent action
Capillary action.
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Question # 13
Permanent hardness is removed by adding.
Choose an answer
Na
2
zeolite.
Soda lime
Lime water
Quick lime
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