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Online Tests
Chemistry Fsc Part 1 Online Test MCQs With Answers
Question # 1
A molecule has two ions pairs and two bond pairs around the central atom. The shape of molecule is.
Choose an answer
Linear
Pyramidal
Angular
Tetrahedral
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Question # 2
the number of moles of CO2 which contain 8.0 g of oxygen.
Choose an answer
0.25
0.50
1.0
1.50
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Question # 3
Solubility of which substance decreases by incressing temperature.
Choose an answer
NaNO3
KNO2
NaCl
Ce2(SO4)3
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Question # 4
Which of the following particles would on losing an electron has its outermost p-orbital as half filled
Choose an answer
Nitrogen atom
O
+
ion
P
-1
ion
S
+1
ion
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Question # 5
In endothermic reactions, the heat content of the
Choose an answer
Products is more then that of reactants
Reactants is more than that of products
Both a and b
Reactant and products is equal
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Question # 6
Which pair of molecule have Debye forces in them
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Ar and Ar
Argon and water
Na+ ions and water
water and water
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Question # 7
The true representation for the units of rate constant K for the first order reaction
Choose an answer
sec
-1
mole dm
-3
s
mole dm
-3
s
-1
mole
-1
dm
+3
s
-1
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Question # 8
What is the oxidation state of sulphur in SO3
2-
Choose an answer
-4
-2
+2
+4
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Question # 9
Which of the hydrogen halides has the highest percentage of ionic character
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HF
HBr
HCI
HI
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Question # 10
The long chains of amino acids are coiled about one another onto a spiral by
Choose an answer
Ionic bond
Van der walls forces
Hydrogen bonding
Overlapping of orbitals
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Question # 11
The velocity of photon is.
Choose an answer
Depends on its source
Equal to square of its amplitude
Depends on its wavelength
Independent of its wavelength
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Question # 12
When i
2
present in the aquous layer in the form of I
-1
3
foes to CCI
4
layer, then the change in colour is from
Choose an answer
Purple to brown
Purple to green
Green to brown
Brown to purple
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Question # 13
The voltage Nickel Cadmium cell is
Choose an answer
1 V
1.2 V
1.4 V
1.6 V
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Question # 14
Maximum number of electrons in f-subshell is.
Choose an answer
2
6
10
14
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Question # 15
Le-Chatelier Braun principle is sometimes known as
Choose an answer
Law of mass action
Law of mobile equilibrium
Law of active mass
All of these above
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Question # 16
An aqueous solution of ethanol in water has vapour pressure.
Choose an answer
Equal to that of water
Equal to that of ethanol
More than that of water
Less than that of water
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Question # 17
the number of Al
3+
ion sin AlCl
3
is 2.007 x 10
23
. The number of Cl- ions are.
Choose an answer
6.02 x 10
23
3.01 x 10
23
3.01 x 10
23
1.5 x 10
23
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Question # 18
The drying agents used in desiccator is.
Choose an answer
BeCl2
MgCl2
CaCl2
SrCl2
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