Chemistry
Graphite is used to make crucibles because it is:
- a good conductor of electricity
- a good conductor of heat
- soft and slippery
- has high melting point
Related Questions
In combined state, carbon occurs as
- coal
- diamond
- graphite
- petroleum
A crystalline form of carbon is
- lamp black
- gas carbon
- sugar
- fullerene
Diamond is used for
- making the electrodes of electric furnaces.
- making crucibles for melting metals.
- cutting and drilling rocks and glass.
- making carbon brushes for electric motors.
Carbon forms innumerable compounds because
- it has four electrons in its outermost shell.
- it behaves as a metal as well as a non-metal.
- carbon atoms can form long chains.
- it combines with other elements to form covalent compounds.