The acid present in vinegar is-A. formic acidB. acetic acidC. citric acidD. malic acid

The acid present in vinegar is B. acetic acid.

Here's a brief explanation:

Acetic Acid (CH₃COOH): This is the main component in vinegar that gives it its characteristic sour taste and smell. Vinegar typically contains about 4-8% acetic acid by volume.

Formic Acid (HCOOH): This is found in the stings of ants and is used in some industrial processes, but it is not the primary acid in vinegar.

Citric Acid (C₆H₈O₇): This is commonly found in citrus fruits like lemons and oranges. It is not the primary acid in vinegar.

Malic Acid (C₄H₆O₅): This is found in apples and other fruits. Like citric acid, it is not the primary acid in vinegar.

So, the correct answer is acetic acid, which is the primary acid responsible for the properties of vinegar.