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  3. 10th Class
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  5. Chemical Reactions and Equations

10th Class Science Chemical Reactions and Equations Question Bank Chemical Reactions and Acids, Bases and Salts

  • question_answer
    Which one of the following is true, if a substance has a pH value of 4?

    A) The substance is a base.

    B) The substance is an acid.

    C) The substance is a neutral substance.

    D) Either [a] or [b]

    E) None of these

    Correct Answer: B

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