Question

Vinegar is the trade name of:

• A. Acetic acid
• B. Chloroform
• C. Ethyl alcohol
• D. Carbon tetrachloride

Hint:

This dilute solution is used as a common food preservative and salad ingredient.

Answer 1

The Correct Option is A

Step 1: Recall what vinegar contains.
Vinegar used in cooking is a dilute water solution containing about 4 to 8 percent of an organic acid, along with flavouring substances.
Step 2: Identify the acid.
That acid is acetic acid, CH₃COOH, formed by the fermentation of sugars or ethyl alcohol in the presence of certain bacteria.
Step 3: Check the other options.
Chloroform is an anaesthetic and solvent, not found in vinegar. Ethyl alcohol is the starting material that gets oxidised to form acetic acid, it is not vinegar itself. Carbon tetrachloride is an industrial solvent with no food use.
Final Answer: A) Acetic acid.