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Online Tests
PPSC Chemistry Part VII NanoChemistry Online Test MCQs With Answers
Question # 1
The diameter of a bucky ball is about _____________
Choose an answer
o
1 A
1 nm
o
100 A
10 nm
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Question # 2
What is graphene.
Choose an answer
A new material made from carbon nanotubes
A one atom thick sheet of carbon
This film made from fullerene
A software tool to measure and graphically respresent nanoparticles.
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Question # 3
The diameter of hydrogen atom is.______________nm
Choose an answer
10
1
0.1
0.01
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Question # 4
Formation of nano particles involves process lime
Choose an answer
Foramtion of metal nuclei on different sizes.
Interaction among the formed particles
Both A and B
No interaction among the nano particles synthesized
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Question # 5
The diameter of fly ash particles is._________ micro meter
Choose an answer
5-10
10-20
20-30
100
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Question # 6
The physical methods of nano roads syntheses involves.
Choose an answer
Top down approach
Bottom up approach
Left right approach
Right left approach
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Question # 7
The thermal conductivity of an SWNT along length is _____ watt/(m.k)
Choose an answer
35
330
386
3500
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Question # 8
In Nano synthesis new unsual chemical reactions are due to.
Choose an answer
Non equilibrium system
Equilibrium system
Isothermal system
Adiabatic process
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Question # 9
The smallest cluster of carbon atoms in Bucky balls known till today consists of ___________ carbon atoms.
Choose an answer
75
20
60
15
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Question # 10
The width of a carbon nano tube is.________ nm
Choose an answer
1
1.3
2.5
10
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Question # 11
Which ratio decides the efficiency nano substance.
Choose an answer
Weight /volume
Surface area/volume
Volume/weight
Pressure/volume
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Question # 12
The electrical conductivity of a nano tube is __________ times that of copper.
Choose an answer
10
100
1000
1/100
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Question # 13
"There is a plenty of room at the bottom" This was stated by
Choose an answer
Issac Newton
Albert Einstein
Richard Feynman
Eric Drexler
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Question # 14
Opticla tweezers
Choose an answer
Are used to remove facial hair with miniaturized laser beams
use light to manipulate particles as small as single atom
Are a nanotechnology bases tool for stamp collectors
Don't exist
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Question # 15
Which idea of envisioned the construction of nano robots
Choose an answer
Building nano materials atom by atom
Destruction of macromolecules to nano ones
Bothe of the above
None of the above
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Question # 16
A diameter of human hair is approximately ________________ m
Choose an answer
75000
75
7.5 x 10
-5
7.5 x 10
-9
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Question # 17
Attention should be focused on qualitative changes in particle properties as a function of.
Choose an answer
Particle numebrs
Particle mass
Particle size
Particle density
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Question # 18
Which of the microscope techniques is similar to the Atomic Force Microscopy (AFM)
Choose an answer
Scanning Electron Microscopy
Scanning Tunneling Microscopy
Transmission Electron Microscopy
None of the above
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Question # 19
The tensile strength of a carbon nanotube is __________ times that of steel.
Choose an answer
10
25
100
1000
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Question # 20
Which of these historical works of art contain nanotechnology.
Choose an answer
Lycurgus cup
Medieval stained glass windows in churches
Damascus steel swords
All of the above
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Question # 21
1 meter = ___________ nm
Choose an answer
10
9
10
-9
10
10
10
-10
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Question # 22
__________ are the extensions of bucky balls.
Choose an answer
Goodesic domes
Hexagons
Carbon nanotubes
AFM and STM
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Question # 23
Fullerene or bucky ball is made up of ________ carbon atoms.
Choose an answer
100
20
75
60
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Question # 24
In radial direction the thermal conductivity of a nano tube is ______ watt/(m.k)
Choose an answer
3500
385
0
350
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Question # 25
Who coined the word nanotechnology.
Choose an answer
Eric Drexler
Richard Feynamann
Sumio tijma
Richard smalley
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