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Online Tests
Chemistry Fsc Part 1 Online Test MCQs With Answers
Question # 1
When 5d orbital is completed them entering electron goes into.
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6s
6p
6d
6f
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Question # 2
A real gas obeying Van der Waal's equation will resemble ideal gas if.
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Both a and b are large
Both a and b are small or zero
A is small and b is large
A is large and b is small
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Question # 3
When external pressure is 23.7 torr, boiling point of water is
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100
o
C
200
o
C
98
o
C
25
o
C
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Question # 4
The effect of temperature on equilibrium was studied by
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Lewis
Van der wall
Arrhenius
Vant hoff
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Question # 5
A solution has pH zero. Its H+ ions concertation will
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zero
More than unity
Less than unity
Unity only
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Question # 6
In discharge tube, properties of X-rays depend upon the nature of.
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Residual gas
Cathode plate
Anode plate
All of these
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Question # 7
After 3 half lives of a chemical reaction, the % fraction of the amount left is
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6.25
75
12.5
50
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Question # 8
The commonly used unit of pressure by meteorologists is.
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Atmosphere
Pascal
Milli
Pound inch3
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Question # 9
Which one of the following substances is not sublime material.
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Iodine
Benzoic acid
Ammonium chloride
Potash alum
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Question # 10
The volume occupied by 1.4 g of N2 at S.T.P is
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2.24 dm3
22.4 dm3
1.12 dm3
112 cm3
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Question # 11
Which one of the following aqueous solutions has the highest pH
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0.1 M NaOH
0.1 M HCl
0.2 M H2SO4
0.1 M HNO3
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Question # 12
X- rays have same nature as
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Alpha rays
Beta rays
Gamma rays
Cathods rays
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Question # 13
The crystallization of a solid substance is done from a hot saturated solution. The solution is
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Evaporated rapidly
Cooled very slowly to get good crystals
Cooled rapidly to get excellent crystals
Mixed with another miscible solvent
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Question # 14
In azeotropic mixture showing positive deviation from Raoult's law, the volume of the mixture is.
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slightly more than the total volume of the components
Slightly less than the total volume of the component
Equal to the total volume of the components
None of these
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Question # 15
Sum of pKa and pKb is equal to.
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1
7
0
14
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Question # 16
What are the SI of excluded volume 'b' in Vander waal equation.
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dm
3
mol -1
m3 mol -1
mol dm-3
mol m-3
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Question # 17
The volume occupied by 1.6 g of O
2
at STP is
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22.4 dm
3
2.24 dm
3
1.12 dm
3
112 dm
3
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Question # 18
From which quantum number is the shape of an orbital determined.
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Principal
Magnetic
Azimuthal
Spin
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