(A) An organic compound 'A', with molecular formula C_2 H_6 O reacts with active metals such as sodium to give compound 'B' and hydrogen gas. 'A on…

An organic compound 'A', with molecular formula $\displaystyle \mathrm{C}_{2} \mathrm{H}_{6} \mathrm{O}$ reacts with active metals such as sodium to give compound 'B' and hydrogen gas. 'A on treatment with iodine and sodium hydroxide gives 'C' and in presence of $\displaystyle \mathrm{H}_{2} \mathrm{SO}_{4}$ at $\displaystyle 413$ K gives 'D' $\displaystyle \left(\mathrm{C}_{4} \mathrm{H}_{10} \mathrm{O}\right)$. 'D' on reaction with excess of HI gives 'E'. Identify 'A', 'B', 'C', 'D' and 'E' and write all the reactions involved.

Write the reagents which are used in the given conversions: $\displaystyle 3$ + $\displaystyle 2$

Phenol to $\displaystyle 2$, $\displaystyle 4$, $\displaystyle 6$ - tribromophenol

Propene to propan-$\displaystyle 1$-ol

Butan-$\displaystyle 2$-one to butan-$\displaystyle 2$-ol

Explain the mechanism of acid catalyzed hydration of alkene to form corresponding alcohol.