An organic compound A (C_(2)H_(6)O) liberates hydrogen with sodium metal. A when heated with alumina at 620 K gives an alkene. B which when passed through Bayer's reagent gives C(C_(2)H_(6)O_(2)). C reacts with PI_(3) and gives back B. Identify A,B and C. Write the reactions.

An organic compound A (C_(2)H_(6)O) liberates hydrogen with sodium met

1.	An organic compound A (C_(2)H_(6)O) liberates hydrogen with sodium metal. A when heated with alumina at 620 K gives an alkene. B which when passed through Bayer's reagent gives C(C_(2)H_(6)O_(2)). C reacts with PI_(3) and gives back B. Identify A,B and C. Write the reactions.
Answer» Solution :(i) An organic compound `A (C_(2)H_(6)O))` liberates hydrogen with sodium metal. `underset(A)(2C_(2)H_(5)OH) + 2Na to 2C_(2)H_(5)O"Na" + H_(2)` (ii) A when heated with alumina at 620 K gives an ALKENE B which when passed through Bayer's reagent gives `C(C_(2)H_(6)O_(2))`. `underset(A)(C_(2)H_(5)OH) overset(Al_(2)O_(3))underset(620 K) to underset((B))(CH_(2)=CH_(2))` `CH_(2)=CH_(2) + H_(2)O + (O) overset("Cold DILL alkaline" KMnO_(4))underset("Baeyer's Reagent") to underset((C))underset(CH_(2)OH)underset(\|)overset(CH_(2)OH)` (iii) (C) reacts with `PI_(3)` and gives back B. Identify A, B and C. Write the REACTIONS. `underset(CH_(2)OH)overset(CH_(2)OH)\|overset(PI_(2))to underset(CH_(2)I)overset(CH_(2)I)\| overset(-I_(2))to underset(CH_(2))overset(CH_(2))(\|\|)`