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Online Tests
Chemistry Fsc Part 1 Online Test MCQs With Answers
Question # 1
The number of bonds in nitrogen molecule is
Choose an answer
One o and one
π
One o and two
π
Three sigma only
Two o and two
π
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Question # 2
VSEPR theory was proposed by
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Nyholn and Gillespie
Kossel
Lewis
Sidwick
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Question # 3
Which of the following represents electronic configuration of the most electropositive elements
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He [ 2s
-1
]
Xe [6s
1
]
He [2s
2
]
Xe [6s
2
]
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Question # 4
In solvent extraction, solute can be separated from solution, by shaking the solution with solvent in which the solute is.
Choose an answer
More soluble
Partially soluble
Insoluble
soluble at high temp
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Question # 5
In which de excitation of electron of hydrogen atom maximum energy is relaeased.
Choose an answer
From n2 to n1
From n3 to n2
From na to n1
From na to n2
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Question # 6
Acetone and chloroform are soluble in each other due to
Choose an answer
Intermolecualr hydrogen bonding
Dipole-dipole interaction
Instantaneous dipoles
All of the above
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Question # 7
Fuel cells are the means by which chemical energy may be converted into
Choose an answer
Heat energy
Magnetic energy
Sound energy
Electric energy
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Question # 8
Dipole moment of CO2 is.
Choose an answer
1.25 D
1.85 D
3.1 D
Zero
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Question # 9
The enthalpy of combustion is
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Positive
Negative
Either positive or negative
No correlation
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Question # 10
In a period of periodic table, atomic radii
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Increases
Decreases
Remain same
First decreases than increases
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Question # 11
Dipole moment is defined as.
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Charge x distance
Charge x Debye
Charge x displacement
Charge x bond energy
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Question # 12
London dispersion force are the only forces present among the.
Choose an answer
Molecules of water in liquid state
Atoms of helium in gaseous state at high temperature
Molecule of solid iodine
Molecules of hydrogen chloride gas
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Question # 13
The cathodic reaction in the electrolysis of dil H2SO4 with Pt electrodes is.
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Reduction
Oxidation
Both oxidation or reduction
Neither oxidation nor raduction
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Question # 14
According to classical concept, oxidation involves
Choose an answer
Addition of oxygen
Addition of electron
Removal of hydrogen
All are correct
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Question # 15
n+1 value of 6d orbital is.
Choose an answer
08
09
10
18
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Question # 16
Cathode rays cast shadow when an opaque object is placed in their path. This behavior of cathode rays show that.
Choose an answer
They move is straight line
They are negatively charge
They possess momentum
They are energetic
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Question # 17
Which of the following molecules have unpaired electrons is the bonding molecular orbitals.
Choose an answer
N2
O2
B2
F2
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Question # 18
A glass is full of water and contains 6.02 x 10
23
molecules of H2O The mass of water molecules is.
Choose an answer
18 gm
90 g
120 g
180 g
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