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Online Tests
Chemistry Fsc Part 1 Online Test MCQs With Answers
Question # 1
Select the correct answer out of the following alternative suggestions London dispersion forces are the only forces present among the.
Choose an answer
Molecules of water in liquid state
Atoms of helium is gaseous state at high temperature.
Molecules of solid I2
Molecule of H-Cl gas
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Question # 2
Which formula will be used to determine the number of in electrons sub shell of an atoms.
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2(l+1)
2(2l+1)
(l+1)
(2l+1)
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Question # 3
Which of the following is true for ionic compounds
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They are non-electrolytes in the molten state
They have bonds which are directional
They conduct electricity in solid state
They are generally more soluble in polar solvents than in non-polar solvents
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Question # 4
The wave number of the light emitted by a certain source is 2 x 10
6
m-1 . The wavelength of this light will be.
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500 nm
5000 nm
200 nm
5 x10
7
m
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Question # 5
A chemical reaction A ---------- B is said to be in equilibrium when
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Complete conversion of A to B has taken place
Conversion of A to B is 50% complete
Rate of transformation of A to B is equal to B to A
50% Reactant have been changed to B
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Question # 6
Existence of an element in more than one crystalline form is known as.
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Anisotropy
Allotropy
Isomorphism
Unit cell
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Question # 7
The structure of water molecule is.
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angular
Linear
Trigonal
Trigonal pyramidal
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Question # 8
VSEPR theory was proposed by
Choose an answer
Nyholn and Gillespie
Kossel
Lewis
Sidwick
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Question # 9
The unit of rate constant depends upon
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Number of reactants
Concentration terms
Order of reaction
Molecularity of reaction
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Question # 10
When atoms are subjected to strong electric field, splitting of spectral lines is called.
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Zeeman effect
stark effect
Photoelectric effect
Compton effect
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Question # 11
Colligative properties are used to determine the
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Freezing points
Boiling point
Atomic mass of an element
Molar mass of solute
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Question # 12
Which has zero potential energy.
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When H atom is independent
When two H atoms combine to form H2 molecule
When two H atoms super impose to each other
When two H atoms have weak attraction between them
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Question # 13
The cell in which a non spontaneous redox reaction takes place as a result of electricity is known as.
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Voltaic cell
Denial cell
dry Cell
Electrolytic cell
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Question # 14
The temperature which partially immiscible pair of liquid leads to the formation of a single phase in called.
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Transition temperature
Absolute temperature
Consulate temperature
Room temperature
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Question # 15
Which of the following mixtures of liquids show negative deviation
Choose an answer
Methyl alcohol water
Hydrochloric acid water
Carbon di sulphide chloroform
Chlorobenzene bromobenzene
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Question # 16
Which statement is incorrect about order of reaction
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It cannot be determined experimentally
It is determined experimentally
Sum of exponents in rate equation
It can have fraction value
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Question # 17
Which of the following substances is used as decolorizing agent.
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Silica gel
Animal charcoal
conc. H2SO4
Asbestos
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Question # 18
During the process of crystallization, the hot saturated solution;
Choose an answer
Is cooled very slowly to get large-sized crystals
Is cooled at a moderated rate to get medium-sized crystals
Is evaporated to get the crystals of the product
Is mixed with an immiscible liquid to get the pure crystals of the produce
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