Do aromatic hydrocarbons have at least one planar ring with delocalized p electrons?

Answer 1

No, but aromatic hydrocarbons have at least one planar ring with delocalized π electrons.

There are no atomic #p# orbitals because they have been combined to make molecular π orbitals.

The π orbitals must also contain #4n+2# electrons (the Hückel rule).

The best known aromatic hydrocarbon is benzene.

Below are the structures of aromatic hydrocarbons containing more than one ring.

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Answer 2
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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.

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.

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.

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.

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