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Online Tests
Chemistry Fsc Part 1 Online Test MCQs With Answers
Question # 1
The smallest collection of ions in an ionic compound is called.
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Formula unit
Chemical formula
Formula mass
Molecular formula
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Question # 2
In which compound the oxidation number of Mw is +6
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KMnO4
K2MnO4
MnO2
MnO
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Question # 3
The unit of rate constant is the same as that of the rate of reaction is.
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First order reaction
Second order reaction
Zero order reaction
Third order reaction
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Question # 4
Which statement is true about Na and Na+
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size of Na is greater than Na+
Size of Na is smaller than Na+
Both have equal size
Both have same properties
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Question # 5
The net heat change in a chemical reaction is same whether it is brought about in two or more different ways in one or several steps. It is known as
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Henry's law
Hess's law
Joule's principle
Law of conservation of energy
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Question # 6
The total kinetic energy of one mole of an ideal gas is given by
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3/2 RT
1/2 KT
1/2 RT
3/2 KT
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Question # 7
In chromatographic technique. Rf has unit.
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Mol dm-3
Cm
m3
No units
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Question # 8
The structure of water molecule is.
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angular
Linear
Trigonal
Trigonal pyramidal
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Question # 9
Gooch crucible is made of.
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Glass
Paper
Teflon
Procelain
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Question # 10
SP
3-
hybridization in important in describing the bonding in
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Question # 11
At which distance a molecule is present from its neighbor molecules of its own diameter, at room temperature.
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100 times
200 times
300 times
400 times
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Question # 12
Which one of the following relationship is correct about energy and frequency.
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E = hv
E = h/v
E = v/h
h = v/E
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Question # 13
The concept of distribution of velocities among the gas molecules was given by.
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Clausius
Mexwell
Boltzmann
Vander waal
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Question # 14
The relative lowering of vapour pressure is equal to the mole fraction of the solute. This law is known as
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Ostwald dilution law
Raoult's law
Vant hoff's law
Henry's law
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Question # 15
Choose an answer
The value of K
p
falls with a rise in temperature
The value of K
p
falls with increasing pressure
Adding V
2
O
5
catalyst increase the equilibrium yield of sulphur trioxide
The value of K
p
is equal to K
c
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Question # 16
A filtration process could be very time consuming if it were not aided by a gentle suction, which is developed.
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If the paper covers the funnel up to its circumference
If the paper has got small sized pores in it
If the stem of the funnel is large so that it dips into the filtrate
If the paper fits tightly
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Question # 17
The molecule of CO2 in dry ice form the.
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Ionic crystals
Covalent crystals
Molecular crystals
Any type of crystals
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Question # 18
Hund's rule state that when electrons enter to the same sub levels they are.
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Singly occupied with same spin
Doubly occupy with same spin
Singly occupied with different spin
Doubly occupied with different spin
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