जॉइन Examsbook
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प्र: The oldest known organic compound is

  • 1
    Urea
  • 2
    Methane
  • 3
    Acetic acid
  • 4
    Benzene
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उत्तर : 3. "Acetic acid"
व्याख्या :

Answer: C) Acetic acid Explanation: In the form of vinegar, acetic acid is known from very early times. It is got by oxidation of fermented liquors (10-15%, alcohol) by air under the influence of a bacteria called 'mycoderma acetic'

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