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Online Tests
Chemistry Fsc Part 2 Chapter 3 Online Test MCQs With Answers
Question # 1
Boric acid is used as eye wash due to its
Choose an answer
Weakly acidic property
Antiseptic nature
Antibiotic nature
Weakly basic properties
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Question # 2
Which is used in the leather industry
Choose an answer
Borax
Boric acid
Boric oxide
Tetra Boric acid
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Question # 3
Kaolin is a mineral of
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Carbon
Magnesium
Silicon
Aluminium
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Question # 4
Which one of the following compounds of lead is red in colour
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PbO
Pb2O
Pb3O4
PbCO3
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Question # 5
Ortho boric acid on strong beating gives.
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Borax
Boron oxide
Metaboric acid
Tetraboric acid
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Question # 6
Corundum is
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Al2O3
Na2AlF6
Quartz
Calcium
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Question # 7
Aluminium oxide is
Choose an answer
Acidic oxide
Baric oxide
Amphoteric oxide
None of these
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Question # 8
Ethyl alcohol on reacting with orthoboric acid form
Choose an answer
Ethyl borate
Boric acid
Boron acetate
Borax
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Question # 9
Litharge is chemically
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PbO
PbO2
Pb3O4
Pb(CH3COO)2
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Question # 10
A solution of borax in water is.
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Acidic
Alkaline
Neutral
None of these
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Question # 11
The aqueous solution of Borax
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Acidic
alkaline
Amphoteric
manual
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Question # 12
In which compound, the oxidation state of boron in not +3
Choose an answer
H2BO3
Ca2B2O11
Na2B4O7
Mg3B2
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Question # 13
Which metal is used in the thermite process because of its activity.
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Iron
Copper
Aluminium
Zinc
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Question # 14
Which substances is called chrome yellow.
Choose an answer
Pb3O4
PbO
2PbCO3.Pb(OH)2
PbCrO4
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Question # 15
Aluminium does not corrode because.
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It is a semi metal
It is a silver shining metal
It does not react with O2
It forms a protective layer of Al2O3
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Question # 16
The chief of aluminum is
Choose an answer
Na
3
AlF
6
Al
2
O
3
.2H
2
O
Al
2
O
3
Al
2
O
3
.H
2
O
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Question # 17
Aluminium oxide is.
Choose an answer
Acidic oxide
Basic oxide
Amphoteric oxide
None of these
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Question # 18
Lead monoxide is
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Amphoteric
Neutral
Acidid
Basic
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