Which of the following alcohols requires acidic $KMnO_4$ to convert it into an aldehyde or ketone?

Explain the reactions of alcohol compounds involving the cleavage of the $C-O$ bond.

Optically active $2-$octanol rapidly loses its optical activity when exposed to

Which of the following gives a $2^{\circ}$ alcohol as a major product upon reaction with $CH_{3}MgBr$ followed by $H_{2}O$?

Ethanol,when reacted with $PCl_5$,gives $A$,$POCl_3$,and $HCl$. $A$ reacts with silver nitrite $(AgNO_2)$ to form $B$ (major product) and $AgCl$. $A$ and $B$ are respectively:

What is the number of hydroxyl groups present in propylene glycol?