7th Class Science Sample Paper Science Olympiad Model Test Paper-15

  • question_answer
    Which of the following statements is correct?
    (i)  Acids turn china rose indicator to magenta.
    (ii) Bases turn china rose indicator to red.
    (iii) Phenolphthalein indicator gives green colour in basic solution.
    (iv) Phenolphthalein indicator is colourless in acid solution.

    A) (i) and (iii)

    B) (ii) and (iii)

    C) (i) and (iv)

    D) (i), (ii) and (iii)

    E) None of these

    Correct Answer: C


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