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Online Tests
Chemistry 10th Class English Medium Online Test MCQs With Answers
Question # 1
Which colour of HI is ?
Choose an answer
Orange
Purple
Red
Colourless
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Question # 2
When glucose and fructose combine they produce
Choose an answer
Starch
Cellulose
Sucrose
None of these
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Question # 3
The dynamic equilibrium in irreversible reaction.
Choose an answer
Never establishes
Establishes after completion of reaction
Establishes before completion of reaction
Establishes very soon
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Question # 4
When CaCO
3,
.is heated in an open flask, it decomposes to form calcium oxides and .
Choose an answer
O
2
CO
CO
2
CO
3
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Question # 5
Protein is not found in:
Choose an answer
Muscles
Skin
Cotton
Hair
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Question # 6
The removal of Mg
+2
and Ca
+2
Ion which are responsible for the hardness of water is called.
Choose an answer
Temporary hardness
Permanent hardness
Water softening
Hydrogen bonding
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Question # 7
99% of atmosphere consists of .
Choose an answer
N
2
and H
2
N
2
and O
2
N
2
and CO
2
O
2
and CO
2
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Question # 8
K
c
is always equal to
Choose an answer
Rf/Rr
Kf /Kt
Kf/Kr
Rr/Rt
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Question # 9
The reduction of alkyl halides takes place in the presence of.
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Zn/HCl
Na/HCl
Mg/HCl
Cu/HCl
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Question # 10
What is pOH of 0.01 M solution of KOH?
Choose an answer
3
11
2
4
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Question # 11
Thermosphere lies beyond.
Choose an answer
Stratosphere
Troposphere
Mesosphere
Biosphere
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Question # 12
Which of the following statement s is not true about fossil fuels?
Choose an answer
they all contain carbon
They are renewable
they produce pollutants when burnt
they cause acid rain
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Question # 13
At which region all weather occurs?
Choose an answer
Troposphere
Stratosphere
Mesosphere
Thermosphere
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Question # 14
A neutral salt is not composed of.
Choose an answer
Metallic ion
Non metallic anion
Anion of base
Anion of acid
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Question # 15
____________ use for ripening of fruits.
Choose an answer
Ethene
Ethane
Ethyne
Propane
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Question # 16
Dehalogenation of tetrahalides produces acetylene. This reaction takes place in the presence of
Choose an answer
Sodium metal
Zinc metal
Magnesium metal
Potassium metal
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