Alcohol Phenols And Ethers

Identify the starting compound from the following data:

\(\mathrm{C}_6 \mathrm{H}_{14} \mathrm{O}(\mathrm{X})\) on reaction with \(\mathrm{HI}\) yields a haloalkane (A) and an alcohol (B). Compound (A) on reaction with aqueous \(\mathrm{NaOH}\) gives an alcohol (C). Compounds (B) and (C) on reaction with \(\mathrm{CrO}_3\) in anhydrous medium yields Butanone and Ethanal respectively.