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प्रश्न
Fill in the blank.
The tendency of an element to exist in two or more forms but in the same physical state is called ................
उत्तर
The tendency of an element to exist in two or more forms but in the same physical state is called Allotropy.
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संबंधित प्रश्न
Write true or false
Graphite has layers of hexagonal carbon bondings.
Name the following:
The third crystalline form of carbon.
Answer the following question
Why is diamond very hard?
Name the following:
The purest form of amorphous carbon.
Why is wood charcoal used in water filters and gas masks?
How is wood charcoal made locally? What other substances are formed in the process.
Give balanced equations for the following chemical reactions:
(a) wood charcoal and cone, nitric acid
(b) coke and steam
(c) wood charcoal and lead monoxide.
TRUE \ FALSE
Coal can be converted to coke by destructive distillation.
Explain the following.
Diamond, graphite and fullerenes are crystalline forms of carbon.
Write the salient features of Graphene.
