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प्रश्न
Why does carbon form compounds mainly by covalent bonding?
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उत्तर
Carbon has the property of tetravalency, so it mainly forms covalent bonds. Since carbon is an element with atomic number 6, its electronic configuration is (2,4). This means there are 4 valence electrons in its outermost shell, and it can either gain 4 electrons or lose 4 electrons to attain the inert gas configuration for becoming stable. As the atoms of carbon are of extremely small size, the nucleus exerts a great force of attraction on the outermost electrons to hold them tightly. This makes it difficult to remove or add electrons to its structure. Therefore, it attains the inert gas configuration by the sharing of electrons in the outermost shell. As the inert gas configuration is attained by the sharing of electrons, carbon forms compounds always by covalent bonding.
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संबंधित प्रश्न
State the reason to explain why covalent compounds "are bad conductors of electricity".
Choose the correct answer from the options given below:
Which of the following is a common characteristic of a covalent compound?
1) high melting point
2) consists of molecules
3) always soluble in water
4) Conducts electricity when it is in the molten state
Name the element whose one of the allotropic forms is buckminsterfullerene.
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?
Which inert gas electron configuration do the Cl atoms in Cl2 molecule resemble? What is this electron configuration?
Give one example of a molecule containing a triple covalent bond.
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 can be used in rock drilling equipment but graphite cannot.
What is graphite?
What is the difference between ionic compounds and covalent compounds?
Give two example in following case:
Gaseous polar 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.
State the type of bonding in the following molecule.
Water
What do you understand by dipole (polar) molecule?
Taking MgCl2 as an electrovalent compound, CCl4 as a covalent compound, give four difference between electrovalent and covalent compounds
Explain covalent bond with example.
Cation is formed when ______.
Which of the following compounds of carbon does not consist of ions?
Which of the following statements are correct for carbon compounds?
- Most carbon compounds are good conductors of electricity.
- Most carbon compounds are poor conductors of electricity.
- Force of attraction between molecules of carbon compounds is not very strong.
- Force of attraction between molecules of carbon compounds is very strong.
