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What is Buckminsterfullerene? - Science

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प्रश्न

What is buckminsterfullerene?

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उत्तर

 Buckminsterfullerene is an allotrope of carbon. It is a spherical shaped molecule containing 60 carbon atoms, arranged in interlocking 20 hexagonal and 12 pentagonal rings of carbon atoms. 

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पाठ 4: Carbon And Its Compounds - Exercise 1 [पृष्ठ २२१]

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लखमीर सिंह Chemistry (Science) [English] Class 10
पाठ 4 Carbon And Its Compounds
Exercise 1 | Q 25.1 | पृष्ठ २२१

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संबंधित प्रश्‍न

Why covalent compounds are different from ionic compounds?


Elements forming ionic compounds attain noble gas configuration by either gaining or losing electrons from their outermost shells. Give reason to explain why carbon cannot attain noble gas configuration in this manner to form its compounds.


Choose the most appropriate answer from the following list of oxides which fit the description.

A covalent oxide of a metalloid.


Write any three features and give two examples of covalent compounds


Fill in the following blank with suitable word:

The form of carbon which is known as black lead is ...........


 Why is diamond used for making cutting tools (like glass cutters) but graphite is not?


Using electron-dot diagrams which show only the outermost shell electrons, show how a molecule of oxygen, O2, is formed from two oxygen atoms. What name is given to this type of bonding? (At. No. of oxygen = 8)


Explain why, diamond is hard while graphite is soft (though both are made of carbon atoms).

 

The number of covalent bonds in pentane (molecular formula C5H12) is:


A covalent molecule having a double bond between its atoms is:
(a) Hydrogen
(b) Oxygen
(c) water
(d) ammonia


What happens when methane (natural gas) burns in air? Write the chemical equation of the reaction involved.


Methane molecule is non-polar molecule. Explain.


State the type of bonding in the following molecule.

Ammonium ion


Define a coordinate bond.


Explain the following briefly.
Pure water does not conduct electricity, but on adding sodium chloride to it, it starts conducting electricity.


Give examples for the following:
Two liquid non polar compounds.


The number of electrons in the valence shell of a carbon atom is 4.


Which of the following statements are correct for carbon compounds?

  1. Most carbon compounds are good conductors of electricity.
  2. Most carbon compounds are poor conductors of electricity.
  3. Force of attraction between molecules of carbon compounds is not very strong.
  4. Force of attraction between molecules of carbon compounds is very strong.

The bond which is formed by the mutual sharing of electrons is called ______ bond.


It is observed that covalent compounds are had conductors of electricity. Give reason. 


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