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Chemistry General Science Test Medium Mode MCQs With Answers
Question # 1
To purify water which has mud dissolved in it, a substance which coagulates the suspended particles is used.
The coagulant may be
Choose an answer
Ag
+
Cu
2+
Al
3+
Si
4+
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Question # 2
Why is CO called as pollutant? reason is:
Choose an answer
It combines with oxygen
It inactivates glycoblysis
It combines with hemoglobin
Inactivates nerves
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Question # 3
The compound that has zero dipole moment is
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HCl
H
2
S
NH
3
CH
4
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Question # 4
Which of the substance is not going to react the sodium metal:
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Acetic acid
Methanol
Di methyl ether
Ethanol
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Question # 5
The number of resonating structures of phenoxide ion are
Choose an answer
3
5
6
4
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Question # 6
The active group of glutathione is
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Amino group
Sulfhydryl group
Carboxylic group
Imino group
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Question # 7
Phenomenon of acid rains gain importance in:
Choose an answer
1930s
1940s
1950s
1960s
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Question # 8
The material possessing superconducting properties is
Choose an answer
Yb Ba
2
Cu
2
O
8
Hg Be
2
Ca
2
Cu
2
O
8
Y Ba
2
Cu
3
O
7
Y B
2
Cu
3
O
7
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Question # 9
The boding which covalent molecules containing hydrogen and one of the small electronegative element such as O, For Mis called:
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ionic bonding
bridge bonding
H-bonding
metalic bonding
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Question # 10
Aspartic acid is a (an)
Choose an answer
Monoamino dicarboxylic acid
Diamino Monocarboxylic acid
Aromatic amino acid
Imino acid
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Question # 11
The toxic organic compounds and heavy metals and metalloids results in contamination of
Choose an answer
surface water
ground water
both surface and ground water
neither surface nor ground waters
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Question # 12
Benzene hexachloride is used as
Choose an answer
Dye
Antimaterial drug
Antibiotic
Insecticide
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Question # 13
The structure of ICI
2
is
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Trigonal
Trigonal bipyramidal
Octahedral
Square planar
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Question # 14
What is not a common use of methane
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As a fuel
For the preparation of haloaklanes
For the preparation of methyl alcohol
For the preparation of sulphuric acid
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Question # 15
Rate of chemical reaction depends upon :
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The number of total collisions per second.
Number of molecules taking part in a chemical reaction.
Number of fruitful collisions per second
Number of fruitless collisions per second.
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Question # 16
When chlorofluoro carbon are subjected to U.V. they form
Choose an answer
Cations
Anions
Free radicals
None of these
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Question # 17
Vinegar made form cane sugar, now a days synthetically contains
Choose an answer
Citric acid
Lactic acid
Acetic acid
Palmitic acid
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Question # 18
When propanamide reacts with Br
2
and NaOH then which of the following compounds is formed?
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Ethyl alcohol
Propyl alcohol
Propyl amine
Ethylamine
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Question # 19
Protein may have
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Primary structure
Secondary structure
Tertiary structure
All of these
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Question # 20
S
N
1 reaction of alkylhalides leads to
Choose an answer
Retention of configuration
Recemisation
Inversion of configuration
None of these
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Question # 21
A nuclophile must
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Be an atom
A group of atoms
Have a lone pair
Be negatively charged
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Question # 22
Preparation of ethylbenzene by the reaction of bromobenzene, ethylbromide and sodium is called
Choose an answer
Wurtz reaction
Fitting reaction
Wurtz fitting reaction
None of these
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