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Chemistry Fsc Part 1 Online Test MCQs With Answers
Question # 1
Quantum number values for 2p orbitals are.
Choose an answer
n = 2, 1 =1
n =1, 1 = 2
n =1, 1= 0
n = 2, 1 = 0
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Question # 2
Allotropy is the property of.
Choose an answer
Compound
Element
Atom
Mixtuer
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Question # 3
The pH of human blood is
Choose an answer
7.0
7.4
4.0
6.5
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Question # 4
Which of the following will have the same number of molecules at STP
Choose an answer
280 cm
3
of CO
2
and 280 cm
3
of N
2
O
11.2 dm
3
of O
2
and 32 g of O
2
44 g of CO
2
and 11.2 dm
3
of CO
28 g of N
2
and 5.6 dm
3
of oxygen
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Question # 5
Which is pseudo solid
Choose an answer
CaF2
Glass
NaCl
CaCl2
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Question # 6
______ Molecule has zero dipole moment.
Choose an answer
CO
H2S
SO2
CH4
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Question # 7
Positive rays were discovered by.
Choose an answer
J.J.Thomson
Goldstein
Ruther ford
William Crookes
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Question # 8
The element nickel has isotopes.
Choose an answer
3
2
5
7
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Question # 9
The born Haber cycle is the best application of law.
Choose an answer
Boyle's
Dalton's
Hess's
Graham's
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Question # 10
Azeotrpic mixture of two liquids boils at a lower temperature than either of them, when
Choose an answer
It is saturated
Is shows positive deviation from Raoult's law
It shows negative deviation from Raoult's law
Is is metastable
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Question # 11
When liquid water changes to ice its volume expands. The expansion in volume is.
Choose an answer
5%
9%
10%
18%
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Question # 12
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 # 13
The molecules of a gas show more deviation from ideal behaviour at low temperature, because
Choose an answer
Attractive force dominate at low temperature
Kinetic energies are increased
Collisions become less frequent
Densities of the gases increase
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Question # 14
Almost forward reaction is complete when value of Kc is
Choose an answer
very high
Very small
Neither large nor very small
No correlation
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Question # 15
In the ground state of an atom the electron is present.
Choose an answer
In the nuclsus
In the second shell
Nearest to the nucleus
Farthest from the nucleus
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Question # 16
Gas equation is derived by combining
Choose an answer
Avogadro's and Charles's Law
Boyle's and Charles's Law
Avogadro's and Boyle's Law
Avogadro's, Boyle's and Charles's Law
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Question # 17
The order of the rate of diffusion of gases NH3, SO3, Cl2 and CO2 is.
Choose an answer
NH3>SO2>CL2>CO2
NH3>CO2>SI2>Cl2
Cl2>SO2>CO2>NH3
Cl2>SO2>CO2>NH3
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Question # 18
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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