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Online Tests
Chemistry Fsc Part 1 Online Test MCQs With Answers
Question # 1
Cadmium has isotopes.
Choose an answer
3
4
5
9
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Question # 2
Maximum number of electrons in f-subshell is.
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2
6
10
14
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Question # 3
Chromatography is the process which involve the distribution of a solute between
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Two mobile phases
A stationary phase and mobile phase
Two stationary and two mobile phases
Two stationary phases
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Question # 4
Gases of air, always remains in the random motion and do not settle due to.
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Elastic collision of gas molecules
Unequal number of different gas molecules
Difference impartial pressure of gas molecules
Difference in molecular masses of air gases
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Question # 5
The shape of Sncl2 molecule is.
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Linear
Angular
Trigonal planar
Tetrahedral
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Question # 6
To achieve a good separation, the two liquids are gently shaken to increase their area of.
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Miscibility
Separation
contact
Solubility
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Question # 7
Forces of attraction between He atoms are.
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Hydrogen bonding
London forces
Debye forces
Ion dipole forces
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Question # 8
In endothermic reactions, the heat content of the.
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Products is more than that of reactants.
Reactants is more than that of products
Both a and b
Reactants and products are equal
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Question # 9
Which one of the following has the greater ionic characters in it.
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HF
HCl
H2O
H2
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Question # 10
If reactants have very low activation energy it means that reaction is.
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Slow
Fast
Endothermic
Exothermic
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Question # 11
How should the conditions be changed to prevent the volume of a give gas from expanding when its mass is increased.
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Temperature is lowered and pressure is increased.
Temperature is increased and pressure is lowered
Temperature and pressure both are lowered
Temperature and pressure both are increased
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Question # 12
The iodine present in water can be separated by which one of the following techniques
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Sublimation
Chromatography
Filtration
Solvent extraction
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Question # 13
The diffusion of gases at absolute zero will be
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Unchanged
Zero
slightly decreases
Slightly increases
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Question # 14
The comparative rates at which the solutes move in paper chromatography, depends on
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The size of paper used
Their R
f
values
Their partition coefficients
The polarity of solvent used
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Question # 15
The over all positive value for the reaction potential predicts that process is energetically.
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Not feasible
Feasible
Impossible
No indication
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Question # 16
Oxidation number of Cr in a C
2
CrO
4
is
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+2
+4
+6
+8
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Question # 17
The cathodic reaction in the electrolysis of dill. H
2
SO
4
with Pt electrodes is
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Reduction
Oxidation
Both oxidation and reduction
Neither oxidation nor reduction
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Question # 18
Which statement is incorrect about 64 g of SO2.
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It is one mole SO2
The number of SO2 molecule are 6.02 x 10
23
The number of oxygen atoms are 6.02 x 10
23
The number sulphur atom are 6.02 x 10
23
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