Multiple choice

Which acid is present in lemon?

  1. Lactic acid

  2. Citric acid

  3. Tartaric acid

  4. Acetic acid
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Citrus fruits including lemons contain citric acid as their primary acid. Citric acid gives lemons their characteristic sour taste and can constitute up to 8% of the lemon's dry weight. Lactic acid is found in fermented milk products, tartaric acid in grapes, and acetic acid in vinegar.

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