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

  • question_answer 20) An indicator prepared from turmeric (Haldi) is added to a strong alkali solution. What colour does the indicator change to?

    A)  Yellow                                 

    B)  Brick red            

    C)         Orange               

    D)         Blue                     

    Correct Answer: B

    Solution :

    An indicator prepared from turmeric (Haldi) when added to a strong alkali solution changes its colour to brick red.

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