Which acid is found in orange? A. Acetic acid B. Tartaric acid C. Salicylic acid D. Citric acid

The correct answer is D. Citric acid.

Citric acid is a weak organic acid found in citrus fruits. It is a natural preservative and is used in many foods and beverages. It is also used in cosmetics and pharmaceuticals.

Acetic acid is a weak organic acid found in vinegar. It is a common food additive and is used in many household products.

Tartaric acid is a weak organic acid found in grapes and other fruits. It is used as a food additive and in baking powder.

Salicylic acid is a weak organic acid found in willow bark. It is used as a pain reliever and fever reducer.