Home
Class 12
CHEMISTRY
Difine buckyball. How is it made ?...

Difine buckyball. How is it made ?

Text Solution

Verified by Experts

`C_60`-fullerene is called buckyball. It contains 20 six-membered rings and 12 five-membered rings. It is prepared by heating graphite in an electric arc in presence of an inert gas like argon or helium. The `C_60 and C_70` fullerenes hence formed can be seperated readily by extraction with benzene or toluene followed by chromatography in presence of alumina.
Promotional Banner

Topper's Solved these Questions

  • SOME p-BLOCK ELEMENTS

    CHHAYA PUBLICATION|Exercise QUESTION-ANSWER ZONE FOR BOARD EXAMINATION ( LONG ANSWER TYPE)|17 Videos

  • SOME p-BLOCK ELEMENTS

    CHHAYA PUBLICATION|Exercise SOLVED WBCHSE SCANNER|35 Videos

  • SOME p-BLOCK ELEMENTS

    CHHAYA PUBLICATION|Exercise QUESTION-ANSWER ZONE FOR BOARD EXAMINATION (VERY SHORT ANSWER TYPE)|62 Videos

  • SOLID STATE

    CHHAYA PUBLICATION|Exercise PRACTICE SET 1|13 Videos

  • SURFACE CHEMISTRY

    CHHAYA PUBLICATION|Exercise Practice set 5|13 Videos
CHHAYA PUBLICATION-SOME p-BLOCK ELEMENTS-QUESTION-ANSWER ZONE FOR BOARD EXAMINATION ( SHORT ANSWER TYPE)
  1. Why do nitrogen and carbon monoxide show similarities in their physica...

    Text Solution

    |

  2. Give reasons Graphite is used as lubricant.

    Text Solution

    |

  3. Unlike diamond, graphite is a good conductor of electricity-explain.

    Text Solution

    |

  4. Diamond is extremely hard but graphite is soft and slippery -explain w...

    Text Solution

    |

  5. Diamond is a bad conductor of electricity but a very good conductor of...

    Text Solution

    |

  6. In spite of being a covalent substance, the melting point of diamond i...

    Text Solution

    |

  7. CO is an inflammable gas while CO2 is not-why?

    Text Solution

    |

  8. How does carbon dioxide function as a fire extinguisher ? Burning magn...

    Text Solution

    |

  9. Carbon monoxide possesses both oxidising and reducing properties - why...

    Text Solution

    |

  10. How will you convert a mixture of CO and CO2 completely into CO2 ?

    Text Solution

    |

  11. How will you convert a mixture of CO and CO2 completely into CO ?

    Text Solution

    |

  12. [SiF6]^(2-) is known to exist whereas [CF6]^(2-) does not exist. Expla...

    Text Solution

    |

  13. Aqueous solution of sodium hydroxide is added drop wise to solution of...

    Text Solution

    |

  14. Difine buckyball. How is it made ?

    Text Solution

    |

  15. CO is readily absorbed by ammoniacal cuprous chloride solution but CO2...

    Text Solution

    |

  16. Why is orthoboric acid used in talcum powders?

    Text Solution

    |

  17. Why , molten AlBr3 is a poor conductor of electricity?

    Text Solution

    |

  18. What is the chemical composition of borax bead?

    Text Solution

    |

  19. Which glass has the highest percentage of lead? Mention its use.

    Text Solution

    |

  20. Silicon in elemental form does not form a graphite- like structure. Ex...

    Text Solution

    |