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SSC General Science & Technology Sample Paper NCERT Sample Paper-3

  • question_answer
    Which of the following organic acid is the main source of vinegar?

    A)  Citric acid        

    B)  nitric acid

    C)  Lactic acid       

    D)  acetic acid

    Correct Answer: D

    Solution :

    [d] Vinegar is a dilute (4 to 10%) solution of acetic acid, prepared by oxidation of alcoholic liquors by various species of Acetobacter. It is obtained from malt, which convert to alcohol by yeast.


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