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Chemistry General Science Test Medium Mode MCQs With Answers
Question # 1
The reaction C2H5CI + aqueous KOH---------C2H5OH+ KCI is
Choose an answer
Electrophilic addition
Nucleophilic addition
Electrophilic substitution
Nucleophilic substitution
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Question # 2
What is the cause of water pollution
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Chemical and bacterial constants in live stock
The spilled oil in rivers and ponds
Wide spreads used of pesticides
All of these
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Question # 3
Which of following factor affect vapour pressure of a liquid?
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temperature
inter molecules forces
size of the molecules
all of these
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Question # 4
Which of the following is not a carbohydrate?
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nuclic acid
strach
glycoyen
cellulose
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Question # 5
Which of the following represents peptide linkage
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-C=N-
-CO-NH-
-CH
2
-NH-
-CH-NH-
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Question # 6
Ketones are less reactive than aldehydes because:
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alkyl groups electorn donation
steric hindrance is greater in ketone
both a and b
ketones are non-polar
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Question # 7
Which of the following least resemble an ideal gas?
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ammonia
helium
hydrogen
trichloromethane
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Question # 8
lonic bond is produced after complete transfer of
Choose an answer
nucleus
neutrons
electrons
protons
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Question # 9
Polysaccharides are also called
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Crystals
Sugars
Liquids
Non Sugars
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Question # 10
The highest temperature in which a substance can exist as a liquid is called its
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Absolute temperature
Critical temperature
Maximum temperature
Body temperature
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Question # 11
What will be the ratio of volume of equal masses of O
2
, H
2
and CH
4
kept in same container under same conditions
Choose an answer
2 : 16 : 2
1 : 16 : 2
2 : 16 : 1
1 : 2 : 1
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Question # 12
Substitution of halogen in the benzene ring requires catalyst
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AlCl
3
FeCl
3
SiO
2
Organo - nickel
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Question # 13
The element with atomic number 55 belongs to which block of the periodic table
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s-block
p-block
d-block
f-block
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Question # 14
The fibre which is made from acrylonitrile as monomer:
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PVC
Rayon fibre
Acrylic fibre
Polyester fibre
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Question # 15
HCOOH reacts with conc. H
2
SO
4
to produce
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CO
CO
2
NO
NO
2
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Question # 16
The correct arrangement of increasing order of atomic radius among Na, K, Mg, Rb is
Choose an answer
Mg < K < Na < Rb
Mg < Na < K < Rb
Mg < Na < Rb < K
Na < K < Rb < Mg
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Question # 17
The total values of magnetic quantum number of subshell are five, the subshell is
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S-subshell
P-subshell
D-subshell
F-subshell
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Question # 18
Bessemer converter is used in the manufacture of
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Pig iron
Steel
Wrought iron
Cast iron
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Question # 19
Most metals are conductors of electricity because of the :
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Light weight.
Immobility of the electrons.
Lustrous surfaces
Relatively free movement of their electrons
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Question # 20
Iodoethane reacts with sodium in ether, the product formed is
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Pentene
Propyne
Butene
Butane
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Question # 21
Which is a mixture of low boiling hydrocarbon
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Natural gas
Petroleum
Wood
Graphite
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Question # 22
Two different hydrocarbon each contain the same percentage by mass of hydrogen. It follows that they have the same
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Empirical formula
Number of atoms in a molecules
Number of isomers
Relative molecular mass
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