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| Q. |
Vinegar made by fermentation from cane sugar contains – |
| A. | palmitic acid |
| B. | lactic acid |
| C. | citric acid |
| D. | acetic acid |
| Answer» D. acetic acid | |
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Explanation: Vinegar is a liquid substance consisting mainly of acetic acid (CH3CO2H) and water, the acetic acid being produced through the fermentation of ethanol by acetic acid bacteria. It is today mainly used in the kitchen as a general 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 a general household cleanser) are still promoted today. Commercial vinegar is produced either by fast or slow fermentation processes. |
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