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  3. 7th Class
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7th Class Science Sample Paper Science Olympiad Model Test Paper-6

  • question_answer
    Acidic liquid is injected into the skin of human beings by ant when it bites. Which one of the following chemical can neutralized the effect of the injected acid?

    A) Calamine

    B) Zinc carbonate

    C) Sodium hydrogen carbonate

    D) All of these

    E) None of these

    Correct Answer: D

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