How many sp2-hybridized carbons are in the structure of norethindrone?

1 Answer
Ernest Z.
May 31, 2016

There are three #sp^2# hybridized carbons in the structure of norethindrone.

Explanation:

The structure if norethindrone is

norethindrone
(from dailymed.nlm.nih.gov)

Every carbon that is part of a double bond system is #sp^2# hybridized.

We see that there are only three such carbon atoms, and they are all in the lower left hand ring.

Two of them are the atoms in the #"C=C"# double bond.

The third is the #"C"# atom in the #"C=O"# double bond.

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