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Online Tests
Chemistry General Science Test Medium Mode MCQs With Answers
Question # 1
The structure of a polymer depends upon how the monomer-repeating unit joins to makes a polymer, What is not the type of structure of a polymer?
Choose an answer
synthetic polymer
linear polymer
branched
cross linked or inter connected polymer
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Question # 2
Amino acid which synthesized many hormones is
Choose an answer
Valine
Phenylalanine
Alanine
Histidine
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Question # 3
CH
3
CH
2
COOH is also named as:
Choose an answer
Propionic acid
Propanoic acid
Acetic acid
Both (a) & (b)
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Question # 4
How many electrons have to be removed to ionize 1.0 x 10(-6) moles of Ne atoms to Ne+ ions in a neon advertising tube:
Choose an answer
6.02x10ê23/1.0x10ê-6
1.0x 10ê-6 x 6.02x 10ê23
1.0x10ê-6 x 6.02×10ê23/20.2
1.0x10ê-6 x 6.02x10ê23/9.65x10ê-1
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Question # 5
All of the following are polar amino acids except
Choose an answer
Serine
Glutamate
Arginine
Alanine
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Question # 6
SO
2
and NO
2
cause pollution due to increase in
Choose an answer
Buffer action
Basicity
Acidity
Neutrality
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Question # 7
An ideal gas obeying kinetic gas equation can be liquefied if
Choose an answer
Its temperature is more than critical temperature
Its pressure is more than critical pressure
Its pressure is more than critical pressure but temperature is less than critical temperature
It cannot be liquefied at any value of P and T
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Question # 8
Which is not an essential amino acid
Choose an answer
Leucine
Methionine
Histidine
Lysine
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Question # 9
Kerosene is liquid at room temperature.This is due to:
Choose an answer
organic nature
H-bonding
molecular size
dipole-dipole forces
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Question # 10
The development of industries was a direct result of which major factor
Choose an answer
population
living standards
depletion of resources
all of these
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Question # 11
The angle between the unhybridized 2pz orbital and the three sp2 hybrid orbitals in ethene is
Choose an answer
180°
120°
90°
60°
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Question # 12
Reaction of acids with alcohols is also known as
Choose an answer
Esterification
Saponification
Alkalization
None
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Question # 13
If a large number of amino acids (hundreds to thousands) are joined by peptide bonds, the resulting product is called
Choose an answer
Dipeptide
Tripeptide
Polypeptide
None of these
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Question # 14
Which has soapy touch?
Choose an answer
Na2B4O7
H3BO3
Ca2B6O11
HBO2
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Question # 15
Which one of the following does not belong to alkaline earth metals
Choose an answer
Be
Ra
Ba
Rn
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Question # 16
The percentage of carbon in different types of iron products is in the order of
Choose an answer
Cast iron > wrought iron > steel
Wrought iron > steel > cast iron
Cast iron > steel > wrought iron
Cast iron = steel > wrought iron
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Question # 17
Acetic Acid reacts with PCl
5
giving:
Choose an answer
Acetamid
Acetyl chloride
Alcohol
ether
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Question # 18
The correct order of reactivity of halogens with alkanes is
Choose an answer
l
2
> Br
2
> Cl
2
> F
2
l
2
> Cl
2
> F
2
> Br
2
F
2
> Cl
2
> l
2
> Br
2
F
2
> Cl
2
> Br
2
> l
2
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Question # 19
Choose an answer
Homogeneous
Heterogeneous
Isogeneous
None
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Question # 20
Spectrum of white light is continuous becuase
Choose an answer
Colors separated by dark spaces
There are no boundary lines between the colours
The radiations are in infrared region
The radiatins fall in ultraviolet region
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Question # 21
Thre rate of S
N
2 reaction depends upon the
Choose an answer
Concentration of alkyl halides
Concentration of nucleophile
Concentration of alkyl halides and nucleophile
None of the above
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Question # 22
Choose an answer
1-bromobutane
2-bromobutane
1-bromo-2-methyl propane
2-bromo-2-methyl propane
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