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Allotropes of Carbon

Total questions: 25

Worksheet time: 16mins

Name
Class
Date
1.
Which consists of carbon atoms?
a)
graphite
b)
diamond
c)
fullerene
d)
all of these
2.
Which has a 2D hexagonal layered structure?
a)
graphite
b)
diamond
c)
fullerene
d)
all of these
3.
Which has a every carbon atom covalently bonded to three others?
a)
graphite
b)
diamond
c)
fullerene
d)
two of these
4.
What structure is shown in the diagram?
a)
Diamond
b)
Graphite
5.
Which has a free delocalized electron between layers that gives rise to electrical conductivity ?
a)
graphite
b)
diamond
c)
fullerene
d)
none of these
6.
Which is used in pencils ?
a)
graphite
b)
diamond
c)
fullerene
d)
none of these
7.
Which has a 3D hexagonal structure?
a)
graphite
b)
diamond
c)
fullerene
d)
none of these
8.
Which has every carbon atom covalently bonded to four other atoms?
a)
graphite
b)
diamond
c)
fullerene
d)
none of these
9.
Which is extremely hard?
a)
graphite
b)
diamond
c)
fullerene
d)
none of these
10.
Which is used as a cutting tool and in jewelry?
a)
graphite
b)
diamond
c)
fullerene
d)
none of these
11.
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
12.
What kind of bonding does atoms in graphite has?
a)
Covalent bonding with all atoms
b)
Each carbon, bonded covalently to 3 other carbon atoms in a 3D lattice
c)
Each carbon, bonded covalently to 4 other carbon atoms.
d)
Each carbon, bonded covalently to 3 other carbon atom in 2D held by intermolecular
13.
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
14.
Which has the formula C60?
a)
graphite
b)
diamond
c)
fullerene
d)
none of these
15.
Which is made of balls or cages of carbon?
a)
graphite
b)
diamond
c)
fullerene
d)
none of these
16.
Which is a semiconductor?
a)
graphite
b)
diamond
c)
fullerene
d)
none of these
17.
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
18.

Giant Covalent Structures are vast networks of ___ bonded atoms

a)

covalently

b)

ionically

c)

mechanically

d)

weakly

19.

Giant covalent structures such as __ and sand have a very __ melting and boiling points and are usually ___

a)

diamond

b)

carbon dioxide

c)

high

d)

low

e)

hard

20.

Giant covalent structures generally ____ conduct electricity

a)

can

b)

cannot

c)

always

d)

normally

21.

______ is the only non-metal to conduct electricity

a)

diamond

b)

silicon

c)

germanium

d)

graphite

22.

_____ can conduct electricity because it has _____ _____

a)

diamond

b)

graphite

c)

localised electrons

d)

delocalised electrons

23.

Diamond is used for cutting glass because it is

a)

hard and strong

b)

soft

c)

shiny

d)

unreactive

24.

Why is diamond hard and strong? It has

a)

weak intermolecular forces

b)

weak covalent bonds

c)

strong covalent bonds

d)

van der Waals forces of attraction

25.

The structure of graphite, diamond and fullerene are respectively

a)

layered, spherical and tetrahedral

b)

tetrahedral, layered and spherical

c)

layered, tetrahedral and spherical

d)

spherical, tetrahedral and layered

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