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Since the bond polarity involves pulling of electrons towards itself, hence
a more electronegative element will be able to attract the electrons more
towards itself
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The amount of their shifting will depend
upon the relative electronegativity of the participating atoms
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This results in different bond
polarity between same participating atoms that are present in different
molecules
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g
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This is due to the different spatial
arrangement of various bonds in the molecule
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The bond or the molecular polarities are related to the electronegativities
of the atoms or the molecules
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Polar Molecules

A polar molecule usually forms when the one end of the molecule is said
to possess a number of positive charges and whereas the opposite end of
the molecule has negative charges
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In a molecule having a polar bond, the centre of the negative charge
will be on one side
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The entire molecule will be a polar molecule
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In a solution, we cannot
mix a polar molecule with the non-polar molecule
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In this solution, water is the polar molecule
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These two molecules do not form
a solution
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What are the Factors that Determine Whether a Molecule Is Polar?
• If the molecule or atom is perfectly symmetric, the molecule will not
be polar even if there are polar bonds present
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The difference in
strength can be expected by comparing electronegativity values
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