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प्रश्न
Define a covalent bond.
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उत्तर
The chemical bond formed between two combining atoms by mutual sharing of one or more pairs of electrons is called a covalent bond.
संबंधित प्रश्न
State the reason to explain why covalent compounds "have low melting and boiling points."
What would be the electron-dot structure of carbon dioxide which has the formula CO2?
What type of bond is present in hydrogen chloride?
Two chlorine atoms combine to form a molecule. The bond between them is known as ______.
In forming N2 molecule, ______ electrons are shared by each atom of nitrogen.
How is buckminsterfullerene related to diamond and graphite?
What is graphite?
State any two uses of graphite.
The pencil leads are made of mainly ______.
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 an electron dot structure of the following molecule. (Without showing the circle) :
Water
Write answer as directed.
What causes the existance of very large number of carbon compound ?
Write answer as directed.
Saturated hydrocarbons are classified into three types. Write these names giving one example each.
Explain the following briefly:
Cl2 is a non polar molecule, while HCl is a polar molecule.
Draw the electron dot diagram and structure of magnesium chloride.
Element A has 2 electrons in its M shell. Element B has atomic number 7.
If B is a diatomic gas, write the equation for the direct combination of A and B to form a compound.
Give an example of the covalent bond formed by
(i) Similar atoms (ii) Dissimilar atoms
From the following hydrocarbon _______ is the cyclic hydrocarbon.
