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प्रश्न
Choose the correct alternative.
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संबंधित प्रश्न
______ and ______ are the two major crystalline allotropes of carbon.
Define the Following Term: Allotropy
Answer the following question
What are fullerenes? Name the most common fullerenes.
Choose the correct alternative
Destructive distillation of coal yields
Write ‘True’ Or ‘False’ Against the Following Statement:
Charcoal is a good adsorbent.
Name the following:
An amorphous form of carbon that contains about 98% carbon.
Name four types of coal with percentage of carbon present in each,with uses.
Name the products formed when:
graphite is subjected to high pressure and 3000°C temperature.
With reference to the structure of the two crystalline allotropes of carbon, state why diamond is inert or unreactive while graphite is comparably more reactive.
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.
