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Online Tests
Chemistry Fsc Part 1 Online Test MCQs With Answers
Question # 1
Gases deviate from ideal behaviour at high pressure. Which of the following is correct for non-ideal behaviour of gases
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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 # 2
Standard enthalpy change when one mole of compound is formed from their elements at standard state is.
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Heat of formation
Standard heat of formation
Heat of combustion
Standard Heat of neutralization
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Question # 3
The voltage Nickel Cadmium cell is
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1 V
1.2 V
1.4 V
1.6 V
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Question # 4
Stronger the oxidizing agent greater is the
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Oxidation potential
Reduction potential
Redox potential
E.M.F of cell
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Question # 5
Normal temperature and pressure (S.T.P) of gas rafers to
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273 K and 76 mm Hg
273° C and 760 mm Hg
273 K and 760 mm Hg
273° C and 76 mm Hg
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Question # 6
Borax has the chemical formula.
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KNO3
Na2B3O7.10H2O
Na2CO3
NaNO3
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Question # 7
A substance which rerareds the rate of a reaction is called
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Inhibitor
Activator
Auto-catalyst
None of these
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Question # 8
Cathode rays cast shadow when an opaque object is placed in their path. This behavior of cathode rays show that.
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They move is straight line
They are negatively charge
They possess momentum
They are energetic
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Question # 9
An atomic orbital has l =1 , m =+1, 0, -1, n = 3 than which one of the following atomic orbital has such values.
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2s
2p
3p
3d
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Question # 10
Which of the following elements in its crystalline form will have the lowest enthalpy change of vaporization
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Chlorine
Argon
Phosphorus
Silicon
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Question # 11
Which of the following precautions in necessary for smooth filtration
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The filter paper should be of big size
The tip of funnel should not touch the side of the beaker
The stem of the funnel should be very small
The stem of he funnel should remain continuously full of liquid
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Question # 12
In which of the following changes, nitrogen in reduced.
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NH3 to NO
NH3 to NO3
N2 to NH3
N-3 to N2
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Question # 13
Electromotive force of the cell is the
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Difference of two electrode potentials
May be sum or the difference of two electrode potentials
Sum of two electrode potential
Depends upon the nature of the cell
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Question # 14
According to Boyle's law which parameters give a straight line parallel to x -axis when we plot a graph between
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P and V
P and 1/V
P and PV
V and T
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Question # 15
What is the mass of aluminium is 204 g of the aluminum oxide Al2O3.
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26 g
27 g
54 g
108 g
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Question # 16
Water and Phenol are partially miscible to each other at room temperature when both liquids are mixed together which is upper layer.
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Water in Phenol
Phenol and water
Pure phenol
Pure water
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Question # 17
Orbitals having same energy are called
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Hybird orbitals
Valence orbitals
Degenerate orbitals
D-orbitals
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Question # 18
The process in which liquid can be made to boil at low temperature in known as .........distillation
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Simple
Thermal
Steam
Vacuum
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