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Chemistry General Science Test Medium Mode MCQs With Answers
Question # 1
During sudden expansion of a gas energy is needed to overcome the intermolecular:
Choose an answer
Vibrations
Attractions
Repulsions
All of above
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Question # 2
Choose a point which is not included in the components of environment:
Choose an answer
stratosphere
hydrosphere
lithosphere
biosphere
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Question # 3
Which is the most toxic among the given?
Choose an answer
heavy metals
non-metals
Metals
Metalloids
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Question # 4
All the following statements are incorrect except:
Choose an answer
all of the gases cannot be liquefied
increase of pressure will not decrease the inter molecular distance in a gas
gas molecules do not attract each other at very low temperature
actual volume of a gas is not negligible at very pressure
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Question # 5
How should the conditions be changed to prevent the volume of a given gas from expanding when its mass increased?
Choose an answer
temperature and pressure both ara increased
temperature and pressure both are lowered
temperature is lowered and pressure is increased
temperature is increased and pressure is descreased
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Question # 6
choose the temperature among the following at which real gas obeys ideal gas laws when pressure range is appreciable:
Choose an answer
critical temperature
boyle's temperature
inversion temperature
transition temperature
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Question # 7
Which is not a calcareous material:
Choose an answer
Lime
Marble
Clay
Marine shel
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Question # 8
The state of matter which exist only within a relatively narrow range of temperature and pressure
Choose an answer
Solid
Gas
Liquid
Plasma
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Question # 9
One of the environmental problem is the formation of oil slicks when oil is spilled form 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 fluorine trapped in it
Use a sorbent having Al
2
O
3
trapped in it
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Question # 10
The best concentration unit used for K⁺ ions present in potable water is
Choose an answer
ppm
Mole fraction
Molarity
Molality
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Question # 11
The fertilizer contains 33___35%n is:
Choose an answer
ammonium nitrate
potassium nitrate
urea
ammonia
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Question # 12
Which of the following is produced when an aqueous solution of butan-2-ol is refluxed with dil acidified KMnO
4
Choose an answer
Butanol
Butanoic acid
Butanone
Butane
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Question # 13
The atomic number of an element is 35 what is the total number of electrons present in all the p-orbitals of the ground state atom of that element?
Choose an answer
6
11
17
23
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Question # 14
Potable water is considered to be
Choose an answer
Safe for human consumption
Not safe for human consumption
The surface water
The ground water
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Question # 15
How many are the zones through which the charge passes in a rotary kiln?
Choose an answer
4
3
2
5
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Question # 16
Which of the following waste material is not recycled for use again
Choose an answer
Paper
Plastic
Hides of animals
Glass
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Question # 17
Halogens on treating with silver salts of acids give
Choose an answer
Alcohol
Ester
Phenol
Alkyl halide
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Question # 18
pH of 0.1 molar HCl solution is
Choose an answer
1
zero
13
14
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Question # 19
Pb has inert pair of electrons:
Choose an answer
One
Two
Three
Four
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Question # 20
Cracking done at low pressure and with a catalyst is called _______ cracking
Choose an answer
Thermal
Catalytic
Steam
None of them
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Question # 21
When vapours of isopropyl alcohol are passed over heated copper, the major product obtained is
Choose an answer
Propane
Propylene
Acetaldehyde
Acetone
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Question # 22
Analytical chemistry is the science of :
Choose an answer
Chemical Characterization.
Physical Characterization.
Biological Characterization.
Biochemical Characterization.
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