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7th Class Science Acids, Bases and Salts / अम्ल, क्षार एवं लवण Question Bank Acids, Bases and Salts

  • question_answer
    Oil of vitriol is historic name of ___.

    A) Nitric acid                     

    B) Sulphuric acid

    C) Hydronium ions

    D)        Acetic acid

    E) None of these

    Correct Answer: B

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