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WorksheetsCarbon
Total questions: 8
Worksheet time: 20mins
Name
Class
Date
1.
How many electrons does carbon have?
a)
6
b)
7
c)
8
d)
9
2.
What are the radioactive isotope of carbon?
a)
C-11
b)
C-12
c)
C-13
d)
C-14
3.
Carbon is arranged in what shape to make diamond?
a)
Triangle
b)
Hexagon
c)
Octahedron
d)
Tetrahedron
4.
What is the chemical symbol of carbon?
a)
Ca
b)
C
c)
Cr
d)
Cu
e)
Cf
5.
Carbon are arranged in what shape to make graphite?
a)
Triangle
b)
Square
c)
Pentagon
d)
Hexagon
e)
Heptagon
6.
How many carbon atoms in citric acid (C6H8O7)?
a)
6
b)
8
c)
7
7.
How many carbon atoms in propane (C3H8)?
a)
8
b)
7
c)
6
d)
3
e)
2
8.
Ca + H2CO3 = ?
a)
CaCO + O2
b)
CO2 + CaO
c)
CaCO3 + H2
d)
CaCO2 + H2O
e)
CaH2O + CO2
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