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Online Tests
Chemistry Fsc Part 1 Chapter 3 Online Test MCQs With Answers
Question # 1
Feeling uncomfortable breathing in un pressurized cabins is due to
Choose an answer
High pressure of CO2
Fatigue
Low pressure of O2
Low presssure of CO2
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Question # 2
Pressure remaining constant, at which temperature the volume of a gas will become twice of what it is at 0
o
C
Choose an answer
546
o
C
200
o
C
546 K
273 K
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Question # 3
Which one of the following gases cannot be liquefied by Line's method.
Choose an answer
Water vapours
NH3
Nitrogen
H2
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Question # 4
Equal masses of methane and oxygen are mixed in an empty container at 25
o
C. The fraction of total pressure exerted by oxygen is.
Choose an answer
1/3
8/9
1/9
16/17
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Question # 5
Critical temperature of CO2 gas is.
Choose an answer
31.1
o
C
13.1 K
13.1
o
C
1.31
o
C
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Question # 6
Borax has the chemical formula.
Choose an answer
KNO3
Na2B3O7.10H2O
Na2CO3
NaNO3
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Question # 7
At which distance a molecule is present from its neighbor molecules of its own diameter, at room temperature.
Choose an answer
100 times
200 times
300 times
400 times
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Question # 8
More ideal gas at room temperature is.
Choose an answer
CO2
NH3
SO2
N2
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Question # 9
Which of the following will have the same number of molecule at STP.
Choose an answer
280 cm3 CO2 and 280 cm3 of N2O
11.2 dm3 of O2 and 32 g of O2
44 g of CO2 and 11.2 dm3 of CO
28 g of N2 and 5.6 dm3 of oxygen
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Question # 10
The total kinetic energy of one mole of an ideal gas is given by
Choose an answer
3/2 RT
1/2 KT
1/2 RT
3/2 KT
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Question # 11
Which is not example of natural plasma.
Choose an answer
Lightening bolt
Aurora
Neon sign
Sum
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Question # 12
A gas is heated in such a way that its volume and absolute temperature both are doubled. the pressure of the gas
Choose an answer
Becomes 2 times
Becomes 4 times
Become half
Remain same
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Question # 13
Vapour pressure of liquid depends upon
Choose an answer
Amount of liquid
Surface area
Temperature
Size of container
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Question # 14
If absolute temperature of gas is doubled and the pressure is reduced to one half, the volume of the gas will.
Choose an answer
Remain unchanged
Increase four times
Reduce to 1/4
Be doubled
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Question # 15
For a gas obeying Boyle's law if pressure is doubled, the volume becomes.
Choose an answer
Double
One half
Four times
Remains constant
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Question # 16
According to Boyle's law which parameters give a straight line parallel to x -axis when we plot a graph between
Choose an answer
P and V
P and 1/V
P and PV
V and T
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Question # 17
Keeping the temperature constant of the gas is expanded.
Choose an answer
Pressure will decrease
Temperature will increase
Kinetic energy of molecules will increase
No. of gas molecules increases
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Question # 18
Which one of the following gases diffuse more rapidly.
Choose an answer
Cl2
CO2
CH4
N2
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