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Online Tests
Chemistry 10th Class English Medium Online Test MCQs With Answers
Question # 1
Composition of carbon in the diesel oil.
Choose an answer
C
7
-C
10
C
10
-C
12
C
13
-C
15
C
15
-C
18
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Question # 2
Carbon content in coke is.
Choose an answer
80%
98%
70%
88%
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Question # 3
Which is not a heavy metal.
Choose an answer
Cadmium
Lead
Zinc
Murcury
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Question # 4
Volatility of hydrocarbons deceases with:
Choose an answer
decrease of molecular mass
increase of molecular mass
increase of double or triple bonds
decrease of triple bonds
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Question # 5
The strone heating of coal in retorts in the absence of air is called.
Choose an answer
Fractional distillation
sublimation
Roasting
Destructive distillation
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Question # 6
pH of acid rain is:
Choose an answer
7-5
6-7
1-2
4-5
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Question # 7
Building block of lipids are.
Choose an answer
Fatty acids
Carboxylic acids
Mineral acids
Alcohols
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Question # 8
In hydrogenation of vegetable oil catalyst employed is.
Choose an answer
Ni
Pt
ZnO
Cr
2
O
3
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Question # 9
Which disease causes bone and tooth damage?
Choose an answer
Fluorosis
Hepatits
Cholera
Jaundice
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Question # 10
Arrhenius put forward acid base concept in.
Choose an answer
1878
1786
1787
1790
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Question # 11
You want to dry a gas which one of the following salt you will use?
Choose an answer
CaCl
2
NaCl
CaO
Na
2
SIO
3
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Question # 12
The value of K
c
depends on.
Choose an answer
Temperature
Pressure
Volume
Atmosphere
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Question # 13
General formula of alcohols is:
Choose an answer
RCHO
ROH
O= R - C -OH
O = R - C- R
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