Question

Explain polar and non polar covalent bonds?

Answer 1

Hii friends..

The greater the electronegativity difference, the more ionic the bond is.Bonds that are partly ionic are calledpolar covalent bonds. Nonpolar covalent bonds, with equal sharing of the bond electrons, arise when the electronegativities of the two atoms are equal.

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Answer 2

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1. Non-polar covalent bond:

This type of bond is formed between the two atoms of the same element. Atoms of the same element attract electrons equally. So, when a covalent bond is formed between two atoms of the same element; the electrons are shared equally between the two atoms. In other words, the shared electron-pair will lie exactly midway between the two atoms. This type of covalent bond is described as a non-polar covalent bond. Non-polar covalent bonds are formed in the molecules such as H2, O2 and Cl2 etc.

2. Polar covalent bond:

This type of bond is formed between two atoms of different elements; the shared pair of electrons does not lie exactly midway between the two atoms. In facts, and it lies more towards the atom which is more electronegative. The atom with higher affinity for electrons develops a slight negative charge and atom with lesser affinity for electrons a slight positive charge.