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Railways General Science & Technology Metals and Non-metals / धातु और अधातु Sample Paper Properties and Uses of Metals and Non-Metals Sample Test Paper-19

  • question_answer
    Zinc helps in the synthesis of biological protein; this is the basis for using zinc ointment for

    A)  Growing more hair

    B)  Healing wounds

    C)  Increasing body weight

    D)  Growing long nails

    Correct Answer: B

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