how many types of covalent bond?
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There are 3 types of covalent bond :-
1.single covalent bond
2.double covalent bond
3.triple covalent bond
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There are three types of covalent bond depending upon the number of shared electron pairs.
SINGLE COVALENT BOND
DOUBLE COVALENT BOND
TRIPLE COVALENT BOND
SINGLE COVALENT BOND
A covalent bond formed by the mutual sharing of one electron pair between two atoms is called a "Single Covalent bond."
It is denoted by single short line.
In single bond formation each atom provide one electron.
DOUBLE COVALENT BOND
A covalent bond formed between two atoms by the mutual sharing of two electron pairs is called a "double covalent bond". It is denoted by double short line .
TRIPLE COVALENT BOND
A covalent bond formed by the mutual sharing of three electron pairs is called a "Triple covalent bond". It is denoted by triple short line.
POLAR COVALENT BOND
A covalent bond formed between two different atoms is known as Polar covalent bond.
For example when a Covalent bond is formed between H and Cl , it is polar in nature because Cl is more electronegative than H atom . Therefore, electron cloud is shifted towards Cl atom. Due to this reason a partial -ve charge appeared on Cl atom and an equal +ve charge on H atom
NON-POLAR BOND
A covalent bond formed between two like atoms is known as Non-polar bond. Since difference of electro negativity is zero therefore, both atoms attract. electron pair equally and no charge appears on
any atom and the whole molecule becomes neutral.
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