An organic compound 'A' having molecular formula C_(6)H_(10)O gives a characteristic colour with aqueous FeCl_(3) solution. When 'A' is treated with CO_(2) and NaOH at 400K under pressure. 'B' is obtained. B on acidification gives C when C treated with CH_(3)COCl gives a popular pain killer D. Deduce the strucutrues of A,B,C and D.

An organic compound 'A' having molecular formula C_(6)H_(10)O gives a

1.	An organic compound 'A' having molecular formula C_(6)H_(10)O gives a characteristic colour with aqueous FeCl_(3) solution. When 'A' is treated with CO_(2) and NaOH at 400K under pressure. 'B' is obtained. B on acidification gives C when C treated with CH_(3)COCl gives a popular pain killer D. Deduce the strucutrues of A,B,C and D.
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