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WorksheetsFullerenes and Graphene
Total questions: 56
Worksheet time: 47mins
Name
Class
Date
1.
What arrangement do graphene atoms have?
a)
A hexagonal arrangement
b)
A cubic volume-centered arrangement
c)
A face-centered cubic arrangement
2.
How many electrons does carbon have?
a)
6
b)
7
c)
8
d)
9
3.
What is the chemical symbol of carbon?
a)
Ca
b)
C
c)
Cr
d)
Cu
e)
Cf
4.
Carbon are arranged in what shape to make graphite?
a)
Triangle
b)
Square
c)
Pentagon
d)
Hexagon
e)
Heptagon
5.
How many carbon atoms in propane (C3H8)?
a)
8
b)
7
c)
6
d)
3
e)
2
6.
How many carbon atoms in citric acid (C6H8O7)?
a)
6
b)
8
c)
7
7.
Which form of pure carbon is formed of layers that slide past one another?
a)
diamond
b)
graphite
c)
fullerene
d)
nanotube
8.
A _______________ bond shares one pair of electrons
a)
Single
b)
Double
c)
Triple
d)
Single and Double
9.
Covalent bonding is when
a)
electrons between two atoms are shared
b)
Electrons between three atoms are shared
c)
Electrons are borrowed between two atoms
d)
Electrons are given between two atoms
10.
An element whose atoms can make straight chains, branched chains, and rings is
a)
carbon
b)
hydrogen
c)
nitrogen
d)
oxygen
11.
What can you tell about methane (CH4) from its molecular formula?
a)
it contains four carbon atoms
b)
it contains one hydrogen atom
c)
it contains four hydrogen atoms
d)
it forms groups of four molecules
12.
Define the term allotropes
a)
Atoms with same proton number but different number of neutrons
b)
Atoms with same proton number but different mass number
c)
Atoms in different arrangement in structure
d)
Atoms in different arrangement and different physical form
13.
Which consists of carbon atoms?
a)
graphite
b)
diamond
c)
fullerene
d)
all of these
14.
Which has a 2D hexagonal layered structure?
a)
graphite
b)
diamond
c)
fullerene
d)
all of these
15.
Which has a every carbon atom covalently bonded to three others?
a)
graphite
b)
diamond
c)
fullerene
d)
two of these
16.
What structure is shown in the diagram?
a)
Diamond
b)
Graphite
17.
Which has weak dispersion forces in between layers?
a)
graphite
b)
diamond
c)
fullerene
d)
none of these
18.
Which has a free delocalized electron between layers that gives rise to electrical conductivity ?
a)
graphite
b)
diamond
c)
fullerene
d)
none of these
19.
Which is used in pencils ?
a)
graphite
b)
diamond
c)
fullerene
d)
none of these
20.
Which has a 3D tetrahedral structure?
a)
graphite
b)
diamond
c)
fullerene
d)
none of these
21.
Which is used as a cutting tool and in jewelry?
a)
graphite
b)
diamond
c)
fullerene
d)
none of these
22.
Which has the formula C60?
a)
graphite
b)
diamond
c)
fullerene
d)
none of these
23.
Which is made of balls or cages of carbon?
a)
graphite
b)
diamond
c)
fullerene
d)
none of these
24.
Which of the following is true about C60 ?
a)
Each carbon bonded covalently to 3 other carbon atoms in a hexagonal ball like structure
b)
Each carbon bonded covelently to 4 other carbon atoms in layers
c)
a giant lattice structure
d)
pentagonal in shape
25.
What structure is shown in the diagram?
a)
Diamond
b)
Graphite
c)
fullerene
26.
Which statement is a true comparison of diamonds and graphite?
a)
diamonds are extremely hard and colorless where as graphite is a very soft gray substance.
b)
diamonds are extremely soft and colorless where as graphite is a very hard gray substance.
c)
Diamonds are made only from carbon where as graphite is a carbon compound containing metal electrons
27.
which answer shows the correct number of C-C covalent bonds in its allotropes?
a)
Diamond 3, Graphite 3, fullerene 3
b)
Diamond 4, Graphite 3, fullerene 3
c)
Diamond 4, Graphite 3, fullerene 4
d)
Diamond 4, Graphite 4, fullerene 3
28.
What is the chemical formula for the molecule in the image, carbon dioxide?
a)
H2O
b)
CO2
c)
CO
d)
CH4
29.
What type of substance is carbon dioxide?
a)
compound
b)
element
c)
mixture
d)
polymer
30.
What type of bonding is present in carbon dioxide?
a)
covalent
b)
single
c)
ionic
d)
metallic
31.
Which particles are represented by dots and crosses in the image?
a)
neutrons
b)
ions
c)
electrons
d)
protons
32.
Carbon dioxide is a small molecule. Which of the following is a property of small molecules?
a)
conduct electricity
b)
form lattices
c)
high boiling point
d)
low melting point
33.
Which type of bond has one pair of electrons shared between atoms?
a)
ionic
b)
single covalent
c)
metallic
d)
double covalent
34.
Which is described as the force holding atoms together?
a)
formula unit
b)
cation
c)
lattice
d)
chemical bond
35.
What type of bond is this?
a)
ionic
b)
covalent
c)
metallic
d)
peptide
36.
Nitrogen will form which of the following ions?
a)
N
b)
N-3
c)
N-5
d)
N+5
37.
What type of bond is this?
a)
ionic
b)
covalent
c)
metallic
d)
peptide
38.
Ionic bonds form between metals and ____.
a)
metalloids
b)
metals
c)
nonmetals
39.
If a compound has a high melting point, and conducts electricity as a solid and as a liquid, what type of structure is it?
a)
metallic
b)
ionic lattice
c)
giant covalent
40.
If a compound has a high melting point, doesn't conduct electricity as a solid but DOES as a liquid, what type of structure is it?
a)
metallic
b)
ionic lattice
c)
giant covalent
41.
If a compound has a high melting point, doesn't conduct electricity as a solid OR as a liquid, what type of structure is it?
a)
metallic
b)
ionic lattice
c)
giant covalent
42.
Magnesium is in group 2. What is the symbol for a magnesium ion?
a)
Mg2-
b)
Mg-
c)
Mg2+
d)
Mg+
43.
Potassium is in group 1. What is the symbol for a magnesium ion?
a)
K2+
b)
K+
c)
K2-
d)
K-
44.
Chlorine is in group 7. What is the symbol for a chlorine ion?
a)
Cl7-
b)
Cl6-
c)
Cl2-
d)
Cl-
45.
How many neutrons does the isotope of lithium have?
a)
8
b)
3
c)
4
d)
5
46.
How many protons does this isotope of titanium have?
a)
48
b)
22
c)
26
d)
70
47.
What element is this? What is the mass number of this atom?
a)
sodium, 23
b)
magnesium, 23
c)
magnesium, 12
d)
sodium, 11
48.
What quantities vary between isotopes of an element?
a)
protons, electrons, and atomic mass
b)
protons, electrons, and atomic number
c)
neutrons and electrons
d)
neutrons and atomic mass
49.
What is the atomic number of this nucleus?
a)
1
b)
3
c)
4
d)
7
50.
What is the mass number of this nucleus?
a)
1
b)
3
c)
4
d)
7
51.
What is the atomic number of this atom?
a)
8
b)
16
c)
24
d)
none of the above
52.
Complete the missing label on the diagram.
a)
Neutron
b)
Centre
c)
Nucleus
d)
Sub atomic particle
53.
Which one is the property of ionic compounds?
a)
high melting point
b)
not a crystal structure
c)
will not dissolve into water
d)
can't conduct electricity when melted
54.
What is the formula for the compound formed by magnesium ions and oxygen ions?
a)
MgO
b)
Mg2O3
c)
Mg2O2
d)
MgO3
55.
Graphene is a single layer of graphite. The bonds between the atoms in graphene are:
a)
ionic
b)
covalent
c)
metallic
56.
Graphene is made of ________ atoms.
a)
chlorine
b)
chromium
c)
carbon
d)
silicon
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