An organic compound (A) is a calcium salt of acetic acid. (A) on dry distillation gives (B) of formula C3H6O. (B) on reaction with LiAIH4 gives (C) of formula C3H8O (C) on heating with conc. H2SO4 gives (D) of molecular formula C3H6 . Identify A,B,C,D and explain the reaction involved.
