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प्रश्न
Name the following:
An amorphous form of carbon that contains about 98% carbon.
उत्तर
Anthracite
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संबंधित प्रश्न
Write true or false
Diamond is insoluble in all solvents.
Answer the following question
Why is diamond very hard?
Fill in the blank:
......... is the most inferior form of coal.
Choose the correct alternative
Destructive distillation of coal yields
Name the following:
The purest form of amorphous carbon.
Name four types of coal with percentage of carbon present in each,with uses.
Give two uses for the following:
bone charcoal
FILL IN THE BLANK
Diamond is the ............ form of carbon.
TRUE \ FALSE
Synthetic diamonds are used for cutting glass and drilling rocks.
State the reasons for use of graphite
(i) as a lubricant for heated machine parts,
(ii) as a lining for crucibles used in manufacture of high grade steel,
(iii) as an electrode in electroplating.
