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Chemistry General Science Test Medium Mode MCQs With Answers
Question # 1
Residence time of methane in the atmosphere is
Choose an answer
3 - 7 days
2 -3 days
3 - 7 years
2 - 3 years
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Question # 2
A real gas most closely approaches the behaviour of an ideal gas at
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15 atm. and 200 K
1 atm. and 273 K
0.5 atm.and 500 K
15 tm, and 500 K
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Question # 3
The %age of nitrogen in urea is:
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46
60
70
80
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Question # 4
Which is not a calcareous material:
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Lime
Marble
Clay
Marine shel
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Question # 5
By the electrolysis of CuCl2 using inert electrodes of platinum which species is deposited at cathode
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H2
O2
Cu
CI
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Question # 6
Macromolecules are classified:
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inorganic
organic
biopolymer
synthetic
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Question # 7
A teacher told his student that air is a mixture. This is due to the reason that suddenly a student raised his hand and said:
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it has different properties from its constituents
oxygen can be removed from it
it is colourless
its composition is different at different altitudes.
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Question # 8
When two ice cubes are pressed together they unite to form one cube. which of the following forces is responsible for holding them together?
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H-bonding
Covalent bonding
van der waal's forces
dipole-dipole interaction
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Question # 9
Cyclobutane structure is categorized under
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Aromatic compounds
Aliphatic compounds
Alicyclic compounds
Heterocyclic compounds
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Question # 10
In [Ti (H2O)]3+ which colour is transmitted
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Yellow
Blue and red
Blue and yellow
red and yellow
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Question # 11
Which woody raw material is used for the manufacture of paper pulp?
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cotton
bagasse
poplar
rice staw
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Question # 12
The self linking of carbon atoms is called
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Chelation
Isomerism
Catenation
None of the above
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Question # 13
During the manufacturing process of cement the temperature of the decomposition zone goes up:
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600
°C
8000
°C
1000
°C
1200
°C
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Question # 14
When fused PbBr
2
is electrolyed then
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Bromine appears at cathode
Lead deposited at the cathode
Lead appears at the anode
None of these happens
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Question # 15
Which of the following compounds will not react with sodium metal to release hydrogen
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CH
3
CH
2
CH
3
CH
3
CH
2
OH
C
6
H
5
OH
C
6
H
5
CH
2
OH
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Question # 16
Shielding effect intervening electrons causes
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Decreases in atomic radii in a period from right to left
Increase in atomic radii in a period from left to righ t
Decrease in atomic radii down the group
Increase in atomic radii down the group
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Question # 17
Ozone in most of the tropical regions acts as a pollutant and causes
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Damages to eyes
Aggravates asthma
Chest discomfort
All of these
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Question # 18
Which one gives acidic reactions?
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CH
3
----C
≡C-------CH
3
CH
3
-----CH
2
-----HC=CH----CH
2
CH
3
----CH=CH
2
CH
3
-----C
≡CH
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Question # 19
Which one of the following reactions is not spontaneous
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Question # 20
Which of the following is not aromatic hydrogencarbon
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Benzene
Naphthalene
Toluene
Cyclohexene
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Question # 21
Which of the following has highest bond order
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Question # 22
IIB elements (Zn, Cd, Hg) and III B elements (Sc, Y and La) are
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Non typical transition element
Typical transition element
Normal elements
Inner transition element
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