7th Class Science Acids, Bases and Salts Question Bank Acids, Bases and Salts

  • question_answer What change does colourless phenolphthalein undergo in acidic and neutral solutions?

    A)  Remains colourless

    B)  Turns pink

    C)  Turns red

    D)  Turns green

    Correct Answer: A

    Solution :

    In acidic and neutral solutions, phenolphthalein undergoes no change i.e., it remains colourless.


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