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Chemistry Fsc Part 2 Online Test MCQs With Answers
Question # 1
In which compound, the oxidation state of boron in not +3
Choose an answer
H2BO3
Ca2B2O11
Na2B4O7
Mg3B2
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Question # 2
The pH range of the acid rain is.
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7-6.5
6.5-6
6-6.5
Less than 5
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Question # 3
The normal amount of overhead ozone is.
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300 DU
350 DU
400 DU
450 DU
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Question # 4
f-block elements are also called
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non typical transition elements
outer transition elements
normal transition elements
inner transition elements
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Question # 5
The isomers always have same
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Chemical properties
Structural formula
Molecular formula
Physical properties as well as chemical properties
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Question # 6
Ethers show the phenomenon of
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Position Isomerism
Functional group isomerism
Metamerism
Chain isomerism
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Question # 7
The avoid teh formation of toxic compounds with chlorine which substance is used for disinfecting water.
Choose an answer
KMnO4
O3
Alum
Chloramines
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Question # 8
Setting of Plaster of Paris is accompanied with
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Hydrogen bonding
Hydration
Dehydration
None of these
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Question # 9
Which is not coloured ion
Choose an answer
SO4
-2
MnO4-3
CrO4
-2
Cr2O7
-2
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Question # 10
Which element among the following belongs to Group IV A of the Periodic table.
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Barium
Iodine
Lead
Oxygen
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Question # 11
Lead monoxide is
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Amphoteric
Neutral
Acidid
Basic
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Question # 12
The reaction between fat and NaOH is
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Estrification
Hydrogenolysis
Fermentation
Saponification
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Question # 13
Which of the following gives acidic oxide
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N
As
Sb
Bi
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Question # 14
Acetic acid form a dimer in liquid phase because.
Choose an answer
Low ionization constant of acid
High solubility in water
Hydrogen bonding
Greater polarity
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Question # 15
In which substance silicon is not present.
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Talc
Asbestos
Dolomite
Zirocon
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Question # 16
Which one of the following has highest melting and boiling points.
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HF
HBr
HCl
HI
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Question # 17
the percentage of nitrogen in NH3 is
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46%
60%
82%
100%
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Question # 18
Formalin is
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10% solution of formaldehyde in water
20% solution of formaldehyde in water
40% solution of formaldehyde in water
60% solution of formaldehyde in water
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