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Why are functional groups polar?

Answer 1

Paisley Boney

Not all functional groups are polar

The functional group's difference in electronegativity determines the polarity.

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Answer 2

Ruby Allen

Functional groups are polar because they contain atoms with significantly different electronegativities, leading to unequal sharing of electrons within the molecule. This results in a partial positive charge on one end of the functional group and a partial negative charge on the other, creating a dipole moment. Examples of atoms commonly found in polar functional groups include oxygen, nitrogen, and sulfur, which have higher electronegativities compared to carbon and hydrogen.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.