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

  • question_answer
    What do toothpastes contain?

    A)  Strong acids      

    B)  Bases  

    C)         Acidic oxides   

    D)         Metals

    Correct Answer: B

    Solution :

    Toothpastes contain bases.


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