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

  • question_answer
    Litmus is the natural indicator. Which one of the following is called synthetic indicator?

    A)  Phenolphthalein

    B)  Acidic solution

    C)  Basic solution

    D)  All of these

    E)  None of these

    Correct Answer: A

    Solution :


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