sour test of vinegar is due to which one of the following acid

1. lactis acid
2. acetis acid
3. butyric acid
4. fumaric acid

Hello Student
Correct Answer is 2) Acetic acid
Vinegar is a dilute impure acetic acid made from beer wine etc. The acetic acid is produced by fermentation of alcohol by acetic acid bacteria. It is used as a cooking gradient for pickling etc. Also used in industrial, medical and domestic purposes etc.

The correct answer is (2) acetic acid.
Vinegar is a liquid consisting mainly of acetic acid (CH3COOH) and water. The acetic acid is produced by the fermentation of ethanol by acetic acid bacteria. Vinegar is now mainly used as a cooking ingredient, but historically, as the most easily available mild acid, it had a great variety of industrial, medical, and domestic uses, some of which (such as its use as a general household cleanser) are still promoted today.