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Fullerenes

An allotrope ...

Question

An allotrope of carbon which exhibits only two types of $C - C$ bond distance of $143.5 p m$ and $138.3 p m$ , is:

A

charcoal

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B

graphite

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C

diamond

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D

fullerene

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Solution

The correct option is D fullerene

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Name an allotrope of carbon which contains both single and double bonds between carbon atoms.

Q. (a) What is the atomic number of carbon. Write its electronic configuration.
(b) What type of chemical bonds are formed by carbon? Why?
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Q. Fullerene is an allotrope of carbon which is similar to a football. It has 60 carbon atoms joined together and no other element in it. There are various types of fullerenes.

C_{60}, C_{70}, C_{74}

C_{75}

are the members of the fullerene family. But

C_{60}

(pronounced as C sixty) is the most stable and most studied form of fullerenes. What do you think is the nature of the bond which is joining these atoms together?

Q. which allotrope of carbon : diamond & graphite have more internal energy, bond length, bond energy and stability? Explain with proper reasons

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