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| Q. |
Sour taste of lemon is due to the presence of which of the follow-ing? |
| A. | Citric acid |
| B. | Acetic acid |
| C. | Oxalic acid |
| D. | Formic acid |
| Answer» A. Citric acid | |
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Explanation: Lemon juice is about 5% citric acid, which gives lemons a sour taste and a pH of 2 to 3. Citric acid is found in many fruits but lemon contains large quantity of citric acid. The distinctive sour taste of lemon juice makes it a key ingredient in drinks and foods such as lemonade and lemon meringue pie. |
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