Which of the following is a tertiary benzylic alcohol?

Identify the major product formed when $2-$Methylhexan$-3-$ol is heated with concentrated sulphuric acid.

Alcohols react with active metals,e.g.,$Na, K$ etc. to give corresponding alkoxides. Write down the decreasing order of reactivity of sodium metal with primary,secondary and tertiary alcohols.

In the following reaction sequence,$CH_3CH_2OH$ $\xrightarrow{P + I_2} A$ $\xrightarrow[\text{dry ether}]{Mg} B$ $\xrightarrow{HCHO} C$ $\xrightarrow{H_2O} D$,the compound $D$ is:

What is the order of reactivity of halogen acids $(HX)$ with $C_2H_5OH$?

$ROH + HX \to RX + H_2O$
In the above reaction,the reactivity order of hydrogen halides is