12th Class Chemistry The d-and f-Block Elements / d तथा f ब्लॉक के तत्व

  • question_answer 92)
      Explain, why does colour of  disappear when oxalic acid is added to its solution in acidic medium?

    Answer:

                        When oxalic acid is added to acidic solution of  its colour disappear due to reduction of  ion to. Chemical reaction occurring during this neutralisation reaction is as follows


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