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

  • question_answer 19) What is the effect of the soap solution on phenolphthalein?

    A)  It turns pink.

    B)  It remains colourless.

    C)  It turns blue.

    D)  It turns red.

    Correct Answer: A

    Solution :

    Soap solution is basic in nature and turns colourless phenolphthalein pink.

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