Multiple choice

Which of the following is present in lemon?

  1. Carbonic acid

  2. Tartaric acid

  3. Oxalic acid

  4. Citric acid
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D Correct answer
Explanation

Lemons contain citric acid, which gives them their characteristic sour taste. Citric acid is a weak organic acid found naturally in citrus fruits like lemons, limes, oranges, and grapefruits. Carbonic acid is in carbonated drinks, tartaric acid is in grapes/tamarind, and oxalic acid is in spinach/rhubarb.

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