7th Class Science Acids, Bases and Salts / अम्ल, क्षार एवं लवण Question Bank Self Test-4

  • question_answer
    What is the Ph value of a strong acid, if indicator turns from blue to red?

    A)  4

    B)  12           

    C)  3

    D)  1

    E)  None of these

    Correct Answer: D

    Solution :


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