Concept explainers
To determine:
A reason corresponding to some molecules having polar bonds and yet being non polar molecules and some other molecules, like water and ammonia, being polar and having polar bonds.
Introduction:
Polarity of a bond is directly related to the electronegativity difference. A polar bond corresponds to a non-uniform distribution of the electron cloud between two nonmetals. Thus, the bond formed between them is a covalent bond. This corresponds to the fact that an atom with higher electronegativity value will show a higher affinity for electrons.
A non-polar bond is formed by a mononuclear diatomic molecule that corresponds to a uniform distribution of the electron cloud. These molecules do not possess dipole moment.
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General, Organic, and Biological Chemistry (3rd Edition)
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