Question

Juice of tamarind turns blue litmus to red. It is because of the presence of an acid called ______.

Options

• methanoic acid

• acetic acid

• tartaric acid

• oxalic acid

Answer 1

Juice of tamarind turns blue litmus to red. It is because of the presence of an acid called tartaric acid.

Explanation:

The acidic nature of tamarind juice causes it to turn blue litmus crimson. The acid found in tamarind is tartaric acid. Acids release hydrogen ions (H⁺) in solution, causing litmus to appear red, indicating their acidic character. Other acids contained in tamarind include acetic acid (vinegar), methanoic acid (formic acid), and oxalic acid (spinach).