WorksheetsCarbon
Total questions: 8
Worksheet time: 4mins
Name
Class
Date
1.
What is the peroid number of carbon?
a)
2
b)
4
c)
6
d)
14
2.
What is valence of carbon?
a)
I
b)
II
c)
IV
d)
VI
3.
Diamond isn't the hardest, naturally occurring substance.
a)
Truth
b)
False
4.
Who proved that a diamond consists of carbon with traces of other elements?
a)
Antoine Lavoisier
b)
Joseph Priestley
c)
Carl Scheele
d)
Michael Faraday
5.
Which type of carbon is the most common?
a)
Diamond
b)
Graphite
c)
Graphene
d)
Fullerene
6.
Where fullerenes are used in?
a)
Biomedical technology
b)
Optical technology
c)
Electronic technology
d)
All of the above
7.
What are nanotubes?
a)
Plain graphite for a pencil
b)
One of the carbon allotropes
c)
Special case of the fularanes
d)
Type of diamond cut
8.
What is used graphene for?
a)
For dry lubricants
b)
For polishing or for fine grinding
c)
For pencil graphite
d)
For diagnostic purposes
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