An organic compound 'A' `(C_(9)H_(10)O)` when treated with conc. HI undergoes cleavage to yield compounds ‘B’ and ‘C’. ‘B’ gives yellow precipitate with `AgNO_(3)` where as ‘C’ tautomerizes to ‘D’. ‘D’ givespositive iodoform test. ‘A’ could be :

Compound A,C_(8)H_(10)O , is found to react with NaOI (produced by reacting Y with NaOH ) and yields a yellow precipitate with characteristic smell. A and Y are respectively (a) (b) (c) (d)

An organic compound A (C_(2)H_(6)O) reacts with sodium to form a compound B with the evolution of H_(2) and gives a yellow compound C on reacting with iodine and NaOH. When heated with conc. H_(2)SO_(4) at 413 K, it gives a compound D (C_(4)H_(10)O) which on reaction wiht conc. HI at 373 K gives compound E. The compound D is also obtained when B is heated with E. Idntify the compounds A,B,C,D and E write the equations for the reaction involved.