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Chemistry General Science Test Medium Mode MCQs With Answers
Question # 1
A polymer of PVC having D.P 500 has molar mass:
Choose an answer
6300
63000
3150
31500
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Question # 2
Hydrogen bonding is not present in which of following compound?
Choose an answer
Ammonia
Ethanol
Ether
Water
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Question # 3
Cotton is an example of
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animal fibre
mineral fibre
vegetable fibre
synthetic fibre
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Question # 4
Liquids are less common than solids and gases because
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They exist in narrow range of temperature and pressure
They have definite volume
Liquid molecules can slide past each other
Molecules contain three type of motion
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Question # 5
Which of these has at least one d electron
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Sc+3
Mn+7
Ti+4
Cr+3
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Question # 6
Condensation occurs between amino acids with the elimination of
Choose an answer
H
2
O
H
2
O
2
NH
3
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Question # 7
Which one of the following is not air pollutant gas
Choose an answer
CO
CO
2
NO
SO
2
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Question # 8
Which of the following element has high m.p and b.p, it acts as a reducing agent, and can react with bases?
Choose an answer
Sr
Ca
Be
Mg
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Question # 9
Which of the following alkyl halides shows higher reactivity?
Choose an answer
R __ F
R __ CI
R __ Br
R __ I
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Question # 10
Which one of the following is an appropriate indication of positive iodoform test?
Choose an answer
Formation of H2O
Brick red precipitate
Release of H2 gas
Yellow precipitate
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Question # 11
If rate of diffusion of A is 5 times that of B,what will be the density ratio of A and B?
Choose an answer
1/25
1/5
25
5
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Question # 12
Which one of the following statements is not correct
Choose an answer
A molecule is the smallest particle of an element which can exist independently
He is a molecule of helium
S
8
is a molecule of sulphur
O
3
is a molecule of oxygen
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Question # 13
An ionic compound M
2
S
3
is formed by the metal M,, the metal is
Choose an answer
Ca
Ba
K
Al
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Question # 14
One of the environmental problem is the formation of oil slicks when oil is spilled from tankers in sea water. Which treatment is suitable to remove oil slicks
Choose an answer
Blow air
Add Na
2
CO
3
Use a specially made sorbent having flouring trapped in it
Use a sorbent having Al
2
O
3
trapped in it
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Question # 15
Benzene reacts with chlorine to form benzene hexachloride in presence of
Choose an answer
Nickel
AlCl
3
Bright sunlight
Zinc
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Question # 16
Fluted filter paper is used to:
Choose an answer
Decrease rate of filtration
Increase rate of filtration
Maintain rate of filtration
None of above
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Question # 17
The formula of lime stone is
Choose an answer
CaCl
2
MgCO
3
Na
2
CO
3
CaCO
3
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Question # 18
Which one of the following step is not involved in determination of empirical formula
Choose an answer
Determination % of each element
Determination of gram atom of each element
Determination of isotopes of each element
Determination of atomic ratio of element
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Question # 19
In CH
4
, all the H-C-H bond angles are
Choose an answer
120°
107°
109°
109.5°
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Question # 20
Which of the following is a method of converting a unsaturated ketone into unsaturated hydrocarbon?
Choose an answer
Aldol condensation
Reimer Tiemann reaction
Cannizaaor's reaction
Wolf-kishner reduction
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Question # 21
Which of the following is a nucleophile
Choose an answer
OH
CH(CH
3
)
3
CH
3
+
CH
3
CH
2
CH
3
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Question # 22
What is formed when propanone is refluxed with an anhydrous solution of NaBH
4
Choose an answer
Propanal
Propan-1-ol
Propan-2-ol
Propane
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