Alcoholic fermentation is brought about by the action of

The reaction,water gas $(CO + H_2) + H_2$ at $673 \ K$ and $300 \ \text{atm}$ in the presence of the catalyst $Cr_2O_3/ZnO$ is used for the manufacture of:

Explain the formation of alcohol from alkene via acid-catalyzed hydration.

In order to prepare $1$-chloropropane,which of the following reactants can be employed?

$CH_3-CH_2-C(Ph)(OH)-CH_3$ can not be prepared by:

What is compound $D$ in the following sequence of reactions?
$CH_3CH_2OH$ $\xrightarrow{P + I_2} A$ $\xrightarrow{Mg, \text{ether}} B$ $\xrightarrow{HCHO} C$ $\xrightarrow{H_2O} D$