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Online Tests
Chemistry Fsc Part 1 Online Test MCQs With Answers
Question # 1
Chromatography is the process which involve the distribution of a solute between
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Two mobile phases
A stationary phase and mobile phase
Two stationary and two mobile phases
Two stationary phases
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Question # 2
The iodine present in water can be separated by which one of the following techniques
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Sublimation
Chromatography
Filtration
Solvent extraction
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Question # 3
Velocity constant is the rate of reaction when the concentrations of reactants are
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Zero
Unity
Two
Three
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Question # 4
The wave number of the light emitted by a certain source is 2 x 10
6
m. the wavelength of this light is
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500 nm
500 m
200 nm
5 x 10
7
m
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Question # 5
In gas occupies a volume of 2 dm
3
at 27°C and I atm pressure. The expression for its volume at S.T.P. is
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Question # 6
More abundant isotope of an element is the one with.
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Even atomic number
Odd atomic number
Even mass number
Odd mass number
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Question # 7
The rate of reaction
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Increases as the reaction proceeds
Decreases as the reaction proceeds
Remains the same as the reaction proceeds
May decrease or increase as the reaction proceeds
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Question # 8
"The components of which mixture can be separated by filtration".
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NaCl and CaCl2
Calcium carbonate and NaCl
Blue and green inks
Sand and naphthalene
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Question # 9
Which one of the following has highest pH
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Distilled water
1 M NH4OH
1 M NaOH
Water saturated with chlorine gas
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Question # 10
10 g of NaOH have been dissolved per kg of solvent The molality of solution.
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0.25 m
0.5 m
1.0 m
2.0 m
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Question # 11
Acetone and chloroform are soluble in each other due to.
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Intermolecular hydrogen bonding
Dipole dipole interaction
Instantaneous dipoles
All of the above
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Question # 12
Which has greater enthalpy of vaporization
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F2
Cl2
Br2
I2
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Question # 13
Which one of the following expressions is for ideal gas equation.
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PM= nRT
PV = nRT
PV = dRT
PV= nTP
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Question # 14
According to Boyle's law which parameters give a straight line parallel to x -axis when we plot a graph between
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P and V
P and 1/V
P and PV
V and T
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Question # 15
The relationship between K
p
and K
c
is given by
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Question # 16
In mass spectrometry, ions are produced by
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Heat at high temperature
Passing gas through high voltage plates
Throwing fast moving electrons on gas molecules
All of them
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Question # 17
Which statement is incorrect about 64 g of SO2.
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It is one mole SO2
The number of SO2 molecule are 6.02 x 10
23
The number of oxygen atoms are 6.02 x 10
23
The number sulphur atom are 6.02 x 10
23
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Question # 18
The mass of two moles of electrons is
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1.10 mg
1.008 mg
0.184 mg
1.673 mg
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