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Online Tests
Chemistry Fsc Part 1 Online Test MCQs With Answers
Question # 1
Which pair of mixture is called ideal solution.
Choose an answer
Chlorobenzene and bromobenzene
Water alcohol
Water ether
HCl and water
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Question # 2
What is bond order.
Choose an answer
Number of unpaired electrons
Number of paired electrons
Number of electrons present in antibonding molecular orbital
Number of bond formed between two atoms after overlap
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Question # 3
The deviation of a gas from ideal behaviour is maximum at.
Choose an answer
-10
o
C and 5.0 atm
-10
o
C and 2.0 atm
100
o
C and 2.0 atm
0
o
C and 2.0 atm
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Question # 4
How many sigma and pi bonds are present in C2H2.
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one sigma and two pi
two pi and one sigma
Two pi and three sigma
Three pi and two sigma
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Question # 5
The heat contents of the system of known as.
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Entropy
Enthalpy
Work
Free energy
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Question # 6
the rate of reaction when concentration of reactants are taken unity is called.
Choose an answer
Average rate
Instantaneous rate
Specific rate
Rate equation
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Question # 7
In which compound oxidation state of chlorine is +5
Choose an answer
NaCl
HOCl
NaClO3
NaClO2
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Question # 8
Gases deviate from ideal behaviour at high pressure. Which of the following is correct for non-ideal behaviour of gases
Choose an answer
At high pressure, the gas molecules move in one direction only
At high pressure, the collisions between the gas molecules are increased
At high pressure, the volume of the gas becomes insignificant
At high pressure, the intermolecular attraction becomes significant
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Question # 9
According to classical concept, oxidation involves
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Addition of oxygen
Addition of electron
Removal of hydrogen
All are correct
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Question # 10
Which process is endothermic and spontaneous
Choose an answer
Neutralization of NaOH with HCl
Formation of NH3 from H2 and N2
Formation of H2O from H2 and O2
Evaporation of sea water
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Question # 11
The comparative rates at which the solutes move in paper chromatography depend on.
Choose an answer
The size of paper used
Rf values of solutes
Temperature of the experiment
Size of the chromatographic tank used
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Question # 12
A material or a collection of materials which is under study is called
Choose an answer
State function
Degree and joule
Degree and ergs
Calorie and joule
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Question # 13
The number of bonds in oxygen molecules.
Choose an answer
One sigma and One pi
One sigma and two Pi
Three sigma only
Two sig and two pi
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Question # 14
If four moles of sulphur dioxide are oxidized to sulphur trioxide, how many moles of oxygen are needed.
Choose an answer
0.5
1.0
1.5
2.0
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Question # 15
Which of the given has hydrogen bonding.
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CH4
CCl4
NH3
NaCl
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Question # 16
10 g of NaOH has been dissolved per dm3 of solution. The molarity of solution is.
Choose an answer
0.5 M
0.25 M
1 M
2 M
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Question # 17
Water and Phenol are partially miscible to each other at room temperature when both liquids are mixed together which is upper layer.
Choose an answer
Water in Phenol
Phenol and water
Pure phenol
Pure water
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Question # 18
If we want to change O
2
to O
2
-1
The electron is to be placed in
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