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10th Class Chemistry English Medium KPK Boards Online Mcqs MCQs With Answers
Question # 1
When Bronsted and Lowry put forward acid base concept?
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1913
1923
1933
1943
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Question # 2
Glucose and fructose are;
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trioses
tetroses
pentoses
hexoses
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Question # 3
Formula of Urea is.
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KCNO
H
2
N-CO-NH
2
HN-CO
2
-NH
H
3
N-CO-NH
3
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Question # 4
Which pollutant is not found in car exhaust gases?
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CO
O
3
NO
2
SO
3
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Question # 5
Hydrogen atoms preset in pentane are.
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10
12
14
16
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Question # 6
Number of discovered element till today are.
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140
118
90
16
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Question # 7
Which diseases cause by the deficiency of vitamin E?
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Rickets
Anemia in babies
Scurvy
Night blindness
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Question # 8
Ammonical brine is prepared by dissolving ammonia gas in.
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NaCl
CaCO
3
CaCl
2
Na
2
SO
4
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Question # 9
The general formula of alkane is
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C
n
H
2n+2
C
n
H
2n-2
C
n
H
2n
C
n
H
2n+1
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Question # 10
Hard water can cause.
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Stomach disorder
Boiler blasts
Inefficiency of engine
All of them
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Question # 11
Petroleum fraction having composition C
5
to C
7
is.
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Petroleum Gas
Petroleum Ether
Kerosine oil
Gasoline or petrol
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Question # 12
Chemical formula of chloroform is :
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CH
2
Cl
2
CH
3
Cl
CHCl
3
CCl
4
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Question # 13
The word acid is derived from the.
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Greek word
Latin word
English word
Arabic word.
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