The given reaction is known as :

The product obtained in the reaction is:

Methyl alcohol can be distinguished from ethyl alcohol using

What is the final product $(IV)$ in the following reaction sequence? $CH_3-CH(OH)-CH_3$ $\xrightarrow{PBr_3} I$ $\xrightarrow{Mg/ether} II$ $\xrightarrow{\text{Ethylene oxide}} III$ $\xrightarrow{H_2O} IV$

Predict the major product of the following reaction:

Absolute alcohol ($100\%$ alcohol) is prepared by distilling rectified spirit over: