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10th Class Chemistry English Medium KPK Boards Online Mcqs MCQs With Answers
Question # 1
The unit of molar concentration is:
Choose an answer
moldm
-3
moldm
+3
molcm
-3
molcm
+3
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Question # 2
Almost all aircrafts fly in:
Choose an answer
troposphere
mesosphere
stratosphere
themosphere
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Question # 3
Which one of the following is manufactured by Solvar's process:
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caustic soda
washing soda
urea
sulphuric acid
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Question # 4
Boiling point of water is:
Choose an answer
0
o
C
25
o
C
80
o
C
100
o
C
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Question # 5
Petroleum is refined by
Choose an answer
Destructive distillation
Fractional distillation
Simple distillations
Dry distillation
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Question # 6
The percentage of water in human body is.
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40%
50%
60%
70%
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Question # 7
When the magnitude of Kc is very small it indicates.
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Equilibrium will never establish
All reactants will be converted to products.
Reaction will go to completion
The amount of products is negligible
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Question # 8
The salts of which element are present in detergent that causes the rapid growth of algae in water bodies is.
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Phosphate
Calcium
Sodium
All of them
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Question # 9
If Qc > Kc the reaction will be in
Choose an answer
Chemical equilibrium
Static equilibrium
Reverse reaction
Forward reaction
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Question # 10
Carbonization process is the conversion of
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Coal into coal gas
Coal into wood
Wood into coal
Wood into coal tar
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Question # 11
Thousand of amino acids polymerize to form.
Choose an answer
Carbohydrates
Proteins
Lipids
Vitamins
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Question # 12
Mg
2+
and Ca
2+
ions react with soap to form calcium and magnesium salts of fatty acids called.
Choose an answer
Gelatin
Scum
Paste
None of them
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Question # 13
Chloroform is used for
Choose an answer
Anesthesia
Fever
Link
Toys
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