Chemistry
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.
Related Questions
A crystalline form of carbon is
- lamp black
- gas carbon
- sugar
- fullerene
Graphite is not found in
- Bihar
- Maharashtra
- Odisha
- Rajasthan
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.
Write True or False against the following statements:
(a) Carbon constitutes 0.03% of the earth's crust.
(b) Graphite is the purest form of carbon.
(c) Coloured diamonds are costlier than colourless and transparent diamonds.
(d) Graphite has layers of hexagonal carbon bondings.
(e) Diamond is insoluble in all solvents.