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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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संबंधित प्रश्न
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.
State the reason why carbon can neither form C4+ cations nor C4− anions but forms covalent compounds.
What would be the electron dot structure of a molecule of sulphur which is made up of eight atoms of sulphur? (Hint – the eight atoms of sulphur are joined together in the form of a ring.)
State the type of bonding in the following molecule.
Water
What type of bonds are present in hydrogen chloride and oxygen?
What type of bond is present in oxygen molecule?
Draw the electron-dot structure of a hydrogen chloride molecule.
Draw the electron-dot structure of CO2 compound and state the type of bonding.
The number of carbon atoms joined in a spherical molecule of buckminsterfullerene is:
(a) fifty
(b) sixty
(c) seventy
(d) ninety
What are the conditions necessary for the formation of covalent molecules?
Choose and write the correct option.
Which type of carbon-carbon bonds are present in Vanaspati ghee?
Explain the following briefly.
Pure water does not conduct electricity, but on adding sodium chloride to it, it starts conducting electricity.
What do you understand by lone pair and shared pair?
Explain the structure of Hydronium ion.
Explain the following:
Covalent compounds have low melting and boiling point.
State the type of bonding in the following molecule.
Water
Complete the following activity.
Write the names of the hydrocarbons for the following structural formula.
(isobutylene, cyclohexane, propene, cyclohexene, cyclopentane, benzene, propyne, isobutane, propane)
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The number of pi-bonds present in benzoic acid molecule are ______.
Carbon forms four covalent bonds by sharing its four valence electrons with four univalent atoms, e.g., hydrogen. After the formation of four bonds, carbon attains the electronic configuration of ______.
The bond which is formed by the mutual sharing of electrons is called ______ bond.
