Which of the following contain maleic acid?
Correct answer: C. Apple
- A. Milk
- B. Grape
- C. Apple
- D. Lemon
Explanation
The correct answer is Apple. Apples contain maleic acid, which is responsible for their tartness. Maleic acid is less common in other foods listed, like milk, grapes, and lemons. Milk contains lactic acid, grapes contain tartaric acid, and lemons are known for their citric acid content.
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