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प्रश्न
Buckminsterfullerene is spherical molecule in which 60 carbon atoms are arranged in interlocking hexagonal and pentagonal rings of carbon atoms.
How many pentagons of carbon atoms are present in one molecule of buckminsterfullerene?
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उत्तर
In one molecule of buckminsterfullerene, 12 pentagons of carbon atoms are present.
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संबंधित प्रश्न
Write the number of covalent bonds in the molecule of butane, C4H10.
Explain the bonding in methane molecule using electron dot structure.
Name the element whose one of the allotropic forms is buckminsterfullerene.
What type of bonds are present in hydrogen chloride and oxygen?
What type of bonds are present in H2 molecule? Draw their electron-dot structures.
The electronic configurations of three elements X, Y and Z are as follows:
| X | 2, 4 |
| Y | 2, 7 |
| Z | 2, 1 |
(a) Which two elements will combine to form an ionic compound?
(b) Which two elements will react to form a covalent compound?
Give reasons for your choice.
Define a covalent bond.
Give the characteristic properties of covalent compounds.
Elements forming ionic compounds attain noble gas electronic configuration by either gaining or losing electrons from their valence shells. Explain giving reason why carbon cannot attain such a configuration in this manner to form its compounds. Name the type of bonds formed in ionic compounds and in the compounds formed by carbon. Also explain the reason why carbon compounds are generally poor conductors of electricity.
Draw all possile structural formulae of compound from their molecular formula given below.
C3H4
Explain the following:
Polar covalent compounds are good conductors of electricity.
Choose the correct answer from the options given below
Condition favorable for formation of a covalent bond is
Acids dissolve in water to produce positively charged ions. Draw the structure of these positive ions.
State the type of bonding in the following molecule.
Water
Draw the electron dot diagram and structure of methane.
Taking MgCl2 as an electrovalent compound, CCl4 as a covalent compound, give four difference between electrovalent and covalent compounds
Name two carbon compounds used in day-to-day life.
Explain covalent bond with example.
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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Considering MgCl2 as ionic compound and CH4 as covalent compound give any two differences between these two compounds.
