Which one of the following organic acids is abundant in grapes, tamarind and banana?

Correct answer: (d) Tartaric acid

Explanation

Tartaric acid occurs naturally in grapes, tamarind and bananas, giving a sour, astringent taste.

Its salt potassium bitartrate (cream of tartar) forms during winemaking.

Citric acid is found in citrus fruits, lactic acid in muscles/curd, acetic acid in vinegar.