Question

why does lemon is so sour​

Answer 1

Answer:

The juice of the lemon is about 5% to 6% citric acid, with a pH of around 2.2, giving it a sour taste. The distinctive sour taste of lemon juice makes it a key ingredient in drinks and foods such as lemonade and lemon meringue pie.

Explanation:

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Answer 2

LEMON is sour because it has CITRIC ACID.

Citric acid is found naturally in citrus fruits, especially lemons and limes. It's what gives them their tart, sour taste.