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Online Tests
Chemistry Fsc Part 2 Chapter 4 Online Test MCQs With Answers
Question # 1
Which raw material is used for manufacture eof HNO3 by Birkland eyed process
Choose an answer
NH3 and CO2
Air
Air and gypsum
Lime stone and urea
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Question # 2
In group VA elements the most electronegative elements is.
Choose an answer
Sb
N
P
As
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Question # 3
Arsenic impurities in contact process are removed.
Choose an answer
By prolong heating the gases
By treatment with Fe(OH)3
In scrubbing tower
In absorption tower
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Question # 4
An element has oxidation state -2, +4, +6 in its compounds. In which group in the periodic table is this element likely to be.
Choose an answer
Grooup III A
Group IV A
Group V A
Group VI A
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Question # 5
The most electronegative element of group V-A is
Choose an answer
N
P
Sb
Bi
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Question # 6
P2O5 is usually used as
Choose an answer
Drying agent only
Reducing agent
Both drying and reducing agent
Both drying agent and oxidizing agent.
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Question # 7
Each of the following is true for white and red phosphorus except one.
Choose an answer
Both are soluble in CCl4
Both can be oxidized by heating in air
Both consists of same kind of atoms
Both can be converted into each other
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Question # 8
Which metal is redered passive by HNO
3
due to formation of a film of metal oxide over the metal
Choose an answer
Pt
Sn
CO
Mn
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Question # 9
Which of the following is a reddish brown gas
Choose an answer
N
2
O
3
NO
2
N
2
O
3
N
2
O
5
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Question # 10
Which catalyst is used in contact process
Choose an answer
Fe
2
O
3
V
2
O
5
SO
3
Ag
2
O
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Question # 11
Which catalyst is used in contact process.
Choose an answer
Fe2O3
V2O5
SO3
Ag2O
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Question # 12
Chemical formula of stibnite on.
Choose an answer
BaSO4
Sb2S3
FeS2
ZnS
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Question # 13
In which substance phosphorus is not present.
Choose an answer
Yolk of egg
Bones
Apatite
Galena
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Question # 14
NH4NO3 on heating at 200
o
C changes to
Choose an answer
N2O
NO
NO2
N2O4
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Question # 15
In group V-A elements the most electronegative elements is
Choose an answer
Sb
N
P
As
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Question # 16
The oxidation of NO in air produces
Choose an answer
N
2
O
3
NO
2
N
2
O
3
N
2
O
4
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Question # 17
Which of the following acids possess oxidizing and reducing properties.
Choose an answer
HCl
HNO2
HNO3
H2SO4
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Question # 18
Which one of the following oxide is brown in colour.
Choose an answer
NO
NO2
N2O
N2O3
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