Why lemons are in sour in taste? Give Reason?


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If you've ever taken a bite out of a lemon, you already know they pack some serious sour power. This is because they contain citric acid, which is a weak organic acid found in many fruits and vegetables. When you bite into a lemon, the citric acid activates taste buds along the sides and center of your tongue.

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A lemon has a pH of around 2. It’s more acidic—and that’s why it’s sour in taste.