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10th Class Chemistry English Medium KPK Boards Online Mcqs MCQs With Answers
Question # 1
Which one is the simplest sugar which can not be hydrolyzed?
Choose an answer
Glucose
Sucrose
Starch
Cellulose
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Question # 2
Chemical formula of matte will:
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Cu2S.FeS
Cu2S
Cu2O
FeS
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Question # 3
50% dextrose contains approximate amount of energy.
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250 calories
16 Calories
170 calories
120 calories
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Question # 4
Which gas saves the surface of earth from ultra violet radiation?
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CO
2
CO
N
2
O
3
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Question # 5
_______ is the king of chemicals.
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Hydrochloric acid
Nitric Acid
Sulphuric acid
Phosphoric acid
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Question # 6
The pH of acid rain.
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2
3
4
5
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Question # 7
Identify which one of the following compounds is a ketron?
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(CH
3
)
2
CHOH
(CH
3
)
2
CHCl
(CH
3
)
2
CO
(CH
3
)
2
CHCl
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Question # 8
Substitution reaction is the characteristics of.
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Alkanes
Alkenes
Alkynes
None of these
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Question # 9
The product of Lewis acid-base reaction is called adduct. The bond between the adduct species is.
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Ionic
Covalent
Metallic
Co-ordinate covalent
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Question # 10
When the rate of a the forward reaction takes place at the rate of reverse reaction the composition of the reaction mixture remains constant it is called.
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Chemical equilibrium
Dynamic equilibrium
Static equilibrium
All
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Question # 11
Fossil fuel means.
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Coal
Petroleum
Natural gas
All of them
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Question # 12
Potassium Ferrocyanide is a:
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Normal salt
Mixed salt
Complex salt
Double salt
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Question # 13
The strone heating of coal in retorts in the absence of air is called.
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Fractional distillation
sublimation
Roasting
Destructive distillation
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