BIOCHEMISTRY
POLAR AND NONPOLAR MOLECULES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The atoms’s ionization energy
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the type of atoms in the molecule
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The atom’s oxidation number
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the shape of the molecule
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Detailed explanation-1: -The shape of a molecule and the polarity of its bonds determine the OVERALL POLARITY of that molecule.
Detailed explanation-2: -By visualizing the arrangement of arrows, if the symmetrical arrangement were seen then the molecule is considered to be non-polar. However, an asymmetrical arrangement of arrows can be seen in the case of polar molecules. The below diagram give the examples of polar and non-polar molecules.
Detailed explanation-3: -For a molecule to be polar, the individual bond moments must not cancel one another, and the molecule must have a net resultant dipole moment.
Detailed explanation-4: -The difference in electronegativity between two atoms determines how polar a bond will be. In a diatomic molecule with two identical atoms, there is no difference in electronegativity, so the bond is nonpolar or pure covalent.
Detailed explanation-5: -Molecular polarity depends on both individual bond polarities and molecular geometry, the latter of which we can predict using VSEPR theory.