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Railways General Science & Technology Biology in Human Welfare Sample Paper Biology in Human Welfare Sample Test Paper-34

  • question_answer
    Which one of the micro-organism is used for production of citric acid in industries?

    A)  Lactobacillus bulgaricus

    B)  Penicillium citrinum

    C)  Aspergillus niger

    D)  Rhizopus nigricans

    Correct Answer: C

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