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Chemistry General Science Test Medium Mode MCQs With Answers
Question # 1
The structure of protein helps protein to
Choose an answer
be in proper shape
attach substrate
perform is function
All of these
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Question # 2
London forces are
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stronger than dipole-dipole interactions
weaker than dipole-dipole interactions
equal to dipole-dipole interactions
sometimes stronger and sometimes weaker than dipole-dipole interactions
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Question # 3
Zwitterion is formed by
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Lysine
Benzoic acid
Aniline
Acetamide
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Question # 4
The synthesis of ethene from ethyl alcohol is a reaction
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Dehydration
Polymerization
Addition
Substitution
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Question # 5
Nylon 6, 6 is a condensation polymer of
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Phthalic acid and hexa ethylene diamine
Adipic acid and hexaethylene diamine
Phthalic acid and glycerol
Adipic acid and glycerol
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Question # 6
The gasses in the atmosphere are essential for sustaining life on earth; Thus oxygen is required for breathing, What for is carbon dioxide required?
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to help plant to under go photosynthesis
to destroy nitrogen oxide form the atmosphere
to help to clean to atmosphere
to help in fixing of bacteria
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Question # 7
The substitution of a'-H' by '-NO2' group in benzene is called
Choose an answer
Nitration
Sulphonation
Ammunolusis
Reduction of benzene
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Question # 8
If a polymer has mass 63000, and the molar mass of repeating unit is 63 what is its degree of polymerization is
Choose an answer
10
3
10
2
10
5
None of these
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Question # 9
Which of the following alcohol is more soluble in H2O
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Propanol
Butanol
Pentanol
Hexanol
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Question # 10
Acetone and Chloroform are soluble in each other due to
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intermolecular hydrogen bonding
ion-dipole interaction
instantaneous dipoles
dipole-induced dipole interaction
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Question # 11
COD of water can be measured by
Choose an answer
Cr
2
O
3
Cr
2
O
4
-2
ions
Cr
2
O
7
-2
ions
None of these
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Question # 12
The energy absorbed when an electron is added to a gaseous atom to form a gaseous ion is called
Choose an answer
Electron affinity
Ionization energy
Both of these
None of these
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Question # 13
Depletion of ozone is more during the month:
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Jan - March
April - Ju8n
July - Aug
Sept - Nov
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Question # 14
Which of the following compounds contains a triple bond?
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Alkane
Alkene
Alkyne
Benzene
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Question # 15
How many molecules of chlorine adds in benzene in the presence of sunlight
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One
Two
Three
Four
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Question # 16
Which of the following has linear shape?
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SP
SP
2
SP
3
None of the above
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Question # 17
Which of the following is not a property of cathode rays
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They can produce x-rays when they strike a heavy metal anode
They can cause reduction reaction
They produce fluorescence in rare earth and minerals
They comprise neutral particles
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Question # 18
The wave number of the light emitted by a certain source is 2 x 10
6
m
-1
. The wavelength of this light will be
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500 nm
500 m
200 nm
5 x 10
7
m
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Question # 19
Aldehydes which do not have
α
-hydrogen undergo
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Aldol combination
Cannizzaro's reaction
Substitution
Elimination
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Question # 20
Which of the following metal exhibits more than one oxidation?
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Na
Mg
Fe
Al
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Question # 21
Which of the following species is paramagnetic?
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CO
2
NO
O
2-
CN
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Question # 22
RNA is a polymer of nucleotide which consist of three components. Which one is not the component in the nucleotide of an RNA
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D-Ribose
Wracil base
Prosphate group
Thyamine base
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