(a) Write two points of difference in the structures of diamond and graphite.(b) Explain why, graphite can be used as a lubricant but diamond cannot.
(c) Explain why, diamond can be used in rock drilling equipment but graphite cannot.
(d) State one use of diamond which depends on its ‘extraordinary brilliance’ and one use of graphite that depends on its being ‘black and quite soft’.
(a) The difference in the structures of diamond and graphite
(i) In diamond, carbon atoms are linked to four other carbon atoms.
In graphite, the carbon atom is joined to only three other carbon atoms.
(ii) In diamond, crystal has a tetrahedral arrangement.
In graphite, a crystal has a hexagonal ring structure.
(b) Graphite can be used as a lubricant because it is soft.
(c) Diamond can be used as rock drilling equipment because it is hard and has a rigid structure.
(d) Diamonds are used for making jewelry due to their ‘extraordinary brilliance’.
Graphite is used for making pencil leads because it is ‘black and quite soft'.
Related Articles
- (a) What is buckminsterfullerene? How is it related to diamond and graphite?(b) Why is diamond used for making cutting tools but graphite is not? (c) Why is graphite used for making dry cell electrodes but diamond is not?
- (a) What is graphite? Of what substance is graphite made?(b) Describe the structure of graphite with the help of a labeled diagram. (c) Why is graphite a good conductor of electricity but diamond is a non-conductor of electricity? (d) State any two uses of graphite.
- (a) What is diamond? Of what substance is diamond made?(b) Describe the structure of diamond. Draw a simple diagram to show the arrangement of carbon atoms in diamond. (c) Explain why, diamond has a high melting point. (d) State any two uses of diamond.
- (a) What is the unique property of carbon atom? How is this property helpful to us?(b) Explain why, diamond is hard while graphite is soft.
- Can a diamond be polished?
- How does graphite act as a lubricant?
- (a) How can diamonds be made artificially? How do synthetic diamonds differ from natural ones?(b) Give any two differences between the properties of diamond and graphite. What causes these differences?
- (a) State one use of each of the following non-metals:Hydrogen, Carbon (as Graphite), Nitrogen, Sulphur(b)Name the metal which is used in making thermometers.
- Which of the following substances are elements ?Water, Salt, Mercury, Iron, Marble, Diamond, Wood, Nitrogen, Air, Graphite, Hydrogen, Oxygen, Sugar, Chlorine
- Give one example in each case:(a) Change which occurs on heating but can be reversed.(b) Change which occurs on heating but cannot be reversed.(c) Change which occurs on cooling but can be reversed.(d) Change which occurs on mixing two substances, but can be reversed.(e) Change which occurs on mixing two substances, but cannot be reversed.
- Can a diamond operator be used with an anonymous inner class in Java 9?
- Why diamond is not a lustrous object?
- Which of the following is used as a moderator in the reactor of a nuclear power station?(a) liquid sodium (b) boron (c) graphite (d) carbon dioxide
- Rolling of chapati and baking of chapati are the changes that(a) can be reversed(b) cannot be reversed(c) can be reversed and cannot be reversed, respectively(d) cannot be reversed and can be reversed, respectively
- Which property of graphite is utilized in making electrodes?
Kickstart Your Career
Get certified by completing the course
Get Started
Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
To Continue Learning Please Login