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21. (i) Write notes on (Example only)
(a) Bouveault Blanc reduction (b) Hoffmann hypobromide degradation
(ii) An organic compound 'A' om treatment with ethyl alcohol gives a carboxylic acid (B) and compound (C). Hydrolysis of 'C' under acidic conditions give 'B' and 'D'. Oxidation of 'B ' with KMnO4 also gives 'B' Compound 'B' on heating with Ca(OH)2 gives 'E'. Compound 'E' doesn't give Tollen's test and doesn't reduce Fehling's solution but forms yellow ppt. with Brady's reagent. Identify ' A' to 'E.
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