An organic compound (A) of molecular formula C3H6 on hydration in the presence of H2SO4 gives (B) C3H6O which gives blue colour In victor meyer’s test. (B) on treatment with Cu at 573 K gives C3H6O a compound (C) on self condensation in the presence of magnesium amalgam and water gives (D) of formula C6H14O2 . Identify A,B,C,D and explain the reaction involved.