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Online Tests
Chemistry Fsc Part 1 Online Test MCQs With Answers
Question # 1
Cathode rays strike alumina and produce a ..........colour.
Choose an answer
Red
Blue
Yellow
Green
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Question # 2
The wave number of the light emitted by a certain source is 2 x 10
6
m
-1
The wave length of this light is.
Choose an answer
500 nm
500 m
200 nm
600 m
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Question # 3
If the empirical formula of compound is CH2 and its molecular mass is 56 than what is the actual molecular formula of this compound.
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CH2
C2H4
C3H6
C4H8
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Question # 4
Exceptionally low acidic strength of HF is due to.
Choose an answer
Strong polar bond between H and F
Smaller size of fluorine
Strong hydrogen bonding
electronegativity of fluorine
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Question # 5
Unit of mole fraction is
Choose an answer
mol dm-3
mol kg-1
g dm-3
No unit
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Question # 6
In zero order reaction the rate is independent of.
Choose an answer
Temperature of reaction
Concentration of reactants
Concentration of products
None of these
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Question # 7
Bohr's model of atom, is contradicted by.
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Planck quantum theory
Pauli's exclusion prinsciple
Heisenberg's uncertainty principle
All of the above
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Question # 8
Electrochemical series is the arrangement of the electrodes in
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Increasing order of reduction potentials
Decreasing order of reduction potentials
Increasing order of oxidation reduction potential
There is no fixed arrangement
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Question # 9
Which one of the following orbital will be filled first.
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4f
5d
3d
4s
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Question # 10
Diamond is a bad conductor of electricity because
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It has a tight structure
It has a high density
There are no free electrons present in the crystal of diamond to conduct electronics
None of these
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Question # 11
Which is not chargeable cell
Choose an answer
Lead accumulator
NiCAD cell
Fuel cell
Alkaline battery
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Question # 12
The effect of temperature on equilibrium was studied by
Choose an answer
Lewis
Van der wall
Arrhenius
Vant hoff
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Question # 13
The unit of mole fraction is
Choose an answer
Moles dm
-3
Moles kg
-1
Gram dm
-3
None
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Question # 14
Chlorine atom and chloride Cl- ions
Choose an answer
Have same chemical and physical properties
Are allotropes of chlorine
Have same number of electrons
Have same number of proton
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Question # 15
Colligative properties are the properties of.
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Dilute solution which behave as nearly ideal solutions
Concentrated solutions which behave as nearly non ideal solutions
Both a and b
Neither a nor b
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Question # 16
In methanol, bond between carbon and oxygen.
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Ionic
Non polar
Polar
Co - ordinate
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Question # 17
Colligative properties are used to determine the
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Freezing points
Boiling point
Atomic mass of an element
Molar mass of solute
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Question # 18
Dilatometer method is useful for the reactions that involve.
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Ionic species
Where reactant absorb U.V. visible or infrared radiations
Small volume changes in solutions
Change in refractive indices
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