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

  • question_answer
    Which of the following match is incorrect?
    Indicator Acid Base
    (i) Methyl Orange                  Red Yellow
    (ii) Phenolphthalein Pink Colourless
    (iii) Litmus Red Blue
    (iv) China rose Green Magenta

    A) (i) and (ii)                      

    B) (ii) and (iv) 

    C) (ii) and (iii)                    

    D) (iii) and (iv)

    E) None of these

    Correct Answer: B


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