SELECT * FROM question_mgmt as q WHERE id=1336 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=2 AND subId=9 AND chapterId=45 and ex_no='1' AND status=1 ORDER BY CAST(question_no AS UNSIGNED)

Question:

The skeletal structure of CH3COOH as shown below is correct, but some of the bonds are shown incorrectly. Write the correct Lewis structure for acetic acid.

Answer:

Since all the atoms are in either period 1 or 2, this molecule will adhere to the octet rule. The exception of course being the hydrogen’s, they follow the duet rule (2 electrons). In the given structure, the H atom is bonded to carbon with a double bond, which is not possible because H has only one electron to share with carbon. Also the second carbon atom is not having complete valency, which is four, so it has to make one more bond with Oxygen. Therefore the correct Lewis structure for acetic acid is as follows:


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