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Online Tests
Chemistry Fsc Part 1 Online Test MCQs With Answers
Question # 1
Pressure remaining constant at which temperature the volume of a gas will become twice of what it is at 0° C
Choose an answer
546°C
200°C
546 K
273 K
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Question # 2
In given equation underlined element is. P+HNO3------------- H2PO4+NO+H2O
Choose an answer
Oxidized
Reduced
Neither oxidized nor reduced
Botha a and b
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Question # 3
Which technique is used ot determine the absorption of radiations.
Choose an answer
Spectrometry
dilatometer method
Refractometric method
Optical rotation method
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Question # 4
If an endothermic reaction is allowed to take place very rapidly in the air, the temperature of the surrounding air
Choose an answer
Remains constant
Increase
Decrease
Increase a bit
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Question # 5
Oxidation number of phosphorus in the compound is.
Choose an answer
+3
+4
+5
+6
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Question # 6
If salt bridge is not used between two half cells, than the voltage.
Choose an answer
Decreases rapidly
Decreases slowly
Does not change
Drops of zero
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Question # 7
Which one of the following gases diffuse more rapidly.
Choose an answer
Cl2
CO2
CH4
N2
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Question # 8
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 # 9
Stronger the oxidizing agent greater is the
Choose an answer
Oxidation potential
Reduction potential
Redox potential
E.M.F of cell
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Question # 10
A chemical change always involve
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Absorption of heat
Evolution of heat
Either absorption or evolution of heat
The liberation of heat and light energy
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Question # 11
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 # 12
Which of the following solution s has the highest boiling point.
Choose an answer
5.85% solution of sodium chloride
18.0 % solution of glucose
6.0% solution of urea
All have the same boiling point
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Question # 13
Which one of the following salts dissolved in water to form a solution with a pH greater than 7
Choose an answer
NaCl
CuSO4
Na2CO3
NH4Cl
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Question # 14
If we plot a graph between I/V at x-axis and pressure at Y -axis
Choose an answer
a parabolic graph is obtained
By increasing temperature straight line move toward x axis
By increases temperature straight line move toward y axis.
No. change in line by increasing temperature.
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Question # 15
A negative deviation from Raoult's law in solution means, the solution has
Choose an answer
High boiling point and high vapour pressure
High boiling point and low vapour pressure
Low boiling point and low vapour pressure
Low boiling point and high vapour pressure
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Question # 16
Bromine has isotopes
Choose an answer
2
4
8
6
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Question # 17
After 3 half life of a chemical reaction, amount of reactant un reactive will be.
Choose an answer
50%
25%
12.5%
6.25%
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Question # 18
Dilatometer method is useful for the reactions that involve.
Choose an answer
Ionic species
Where reactant absorb U.V. visible or infrared radiations
Small volume changes in solutions
Change in refractive indices
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