Vinegar contains an organic compound with the following functional group. what type of organic compound is vinegar an example of? the functional group contains a carbonyl group, which is a carbon atom double-bonded to an oxygen atom, bonded to a carbon chain on one side of its carbon atom and a hydroxyl group, which is an oxygen atom single-bonded to a hydrogen atom, on the other side. amine aldehyde carboxylic acid ester

            Option-C (Carboxylic Acid)

Explanation:
                   Vinegar is a solution made up of 95 % water and 5 % Acetic Acid. The structure of Acetic Acid is shown below. Acetic acid belongs to a class of organic compounds called as Caboxylic Acids. The functional group of carboxylic acid contain a carbonyl group bonded to hydroxyl group and an alkyl group (highlighted red in structure).
                    Due to acid nature of this class it can donate the proton bonded to oxygen atom next to carbonyl group and resulting in the formation of resonance stabilized carboxylate ion.

Other examples of Carboxylic acids are,

HCOOH     Formic Acid

CH₃-COOH     Acetic Acid

CH₃-CH₂-COOH     Propionic Acid

CH₃-CH₂-CH₂-COOH     Butanoic Acid

CH₃-CH₂-CH₂-CH₂-COOH     Pentanoic Acid

For cyclohexane compounds drawn in a chair conformation:   -axial bonds are vertical  -equatorial bonds are parallel to two bonds within the ring.  thus, as i assume the chair conformation is drawn:   -the x group is in an axial position, as are the five other vertical bonds.  -three axial bonds are on the top face of the ring  -the other three axial bonds are on the bottom face  the position of the second substituent on each ring carbon is equatorial.  gauche groups must be on an adjacent carbon such as carbon 6 and carbon 2, and also gauche groups are rotated by 60 degrees relative to each other.  drawing the newman projections for c1–c2 and c1–c6 aids in visualizing the groups that are gauche to the y group on c1.  click this link and watch some academic videos that may you more understand the topic 

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