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Manipal Engineering Manipal Engineering Solved Paper-2008

  • question_answer
    For the titration of\[KOH\]vs\[{{(COOH)}_{2}}\cdot 2{{H}_{2}}O\], the suitable indicator is

    A)  methyl orange

    B)  phenolphthalein

    C)  methyl red

    D)  All can be used

    Correct Answer: B

    Solution :

    In acidic medium phenolphthalein is colorless and in alkaline medium it is pink. Therefore, in the titration of strong base\[(KOH)\,\,vs\]weak acid (oxalic acid) phenolphthalein is used.


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