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Online Tests
Chemistry Fsc Part 1 Online Test MCQs With Answers
Question # 1
Under which conditions of temperature and pressure will a real gas behave most like an ideal gas.
Choose an answer
Low temperature and how pressure
High temperature and high pressure
Low temperature and high pressure
High temperature and low pressure
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Question # 2
Polymorphic substances have
Choose an answer
Same physical and chemical properties
Different physical and chemical properties.
Same physical but different chemical properties
Different physical and same chemical properties.
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Question # 3
As compared to pure atomic orbitals the hybrid orbitals have.
Choose an answer
Low energy
High energy
Same energy
None of these
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Question # 4
Diamond is a bad conductor of electricity because
Choose an answer
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 # 5
The carbon atom is C2H4 is.
Choose an answer
sp3 hybridized
sG2 hybridized
Sp hybridized
dsG2 bybridized
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Question # 6
Depression in the F.P is directly proportional to
Choose an answer
Molarity of solution
Molarity of solvent
Molality of solvent
Molality of solution
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Question # 7
Which of the following has coordinate covalent bond.
Choose an answer
NH4
NaCl
HCl
AlCl3
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Question # 8
When hot saturated solution is cooled very rapidly, we get
Choose an answer
Medium sized crystals
large sized crystals
Premature crystallization of the substance
Old crops of crystals
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Question # 9
Which one of the following molecules is paramagnetic.
Choose an answer
H2
He
N2
O2
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Question # 10
The drying agents used in desiccator is.
Choose an answer
BeCl2
MgCl2
CaCl2
SrCl2
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Question # 11
If absolute temperature of the gas is doubled and the pressure is reduced to one half the volume the gas will.
Choose an answer
Remains uncharged
Increase four time
Reduce to 1/4
Be doubled
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Question # 12
The shape of H
3
O is
Choose an answer
Tetrahedral
Angular
Trigonal planer
Pyramidaj
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Question # 13
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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Question # 14
The solubility product of AgCI is 2.0 x 10
-10
mol
2
dm
-6
The maximum concentration of Ag
+
ions in the solution is
Choose an answer
2.0 x 10
-10
mol dm
-3
1.41 x 10
-5
mol dm
-3
1.0 x 10
-10
mol dm
-3
4.0 x 10
-20
mol dm
-3
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Question # 15
BF3 has zero while NH3 has 1.49 D dipole moment because.
Choose an answer
B is less electronegative than N
F is more electronegative than N
BF3 is pyramidal while NH3 is planar
NH3 is pyramidal while BF3 is trigonal planar
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Question # 16
Isomorphic crystals show
Choose an answer
Same chemical properties
Same physical properties
Same crystalline form
Same melting point
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Question # 17
Which of the following orbitals is not possible.
Choose an answer
3p
4s
2d
Is
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Question # 18
Many element have fractional atomic masses. This is because.
Choose an answer
the mass of the atom is itself fractional
Atomic masses are average mases of Isobars
Atomic masses are average masses Isotopes
Atomic masses are average masses of Isotopes proportional to their relative abundance.
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