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

  • question_answer 79) You are provided with two solutions 'X' and 'Y?. The colour of turmeric stains on your clothes on coming in contact with solution 'X' changes to brick red and when in contact with solution 'Y' changes to yellow. The solution 'X' and 'Y' provided to you are respectively:

    A) Soap solution and lemon juice

    B) Lemon juice and soap solution

    C) Lemon juice and vinegar

    D) Soap solution and sugar solution

    Correct Answer: A

    Solution :

    Turmeric gives red colour with a base (soap solution) and yellow colour with acid.

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