Due to the developed polarity, the following steps take place in sequence, and thus, an ionic molecule is formed. A bond is said to be a polar bond,if it has. The variations in electronegativity and lone pairs of electrons give a partial negative charge to the oxygen atom and a partial positive charge to each hydrogen atoms. Polarity in organic chemistry refers to a separation of charge and can describe a bond or an entire molecule. One of the most common examples is water, which consists of oxygen and hydrogen atoms. (a) Polar bond between H and Cl and (b) nonpolar bond between two Cl atoms. A nonpolar covalent bond is an example of bond formed when two chlorine atoms combine.
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