The product obtained by heating ethanol with concentrated $H_2SO_4$ at $165^{\circ}C - 170^{\circ}C$ is:

Explain why propanol has a higher boiling point than that of the hydrocarbon,butane?

The order of reactivity of the following alcohols toward $HCl$ is:
$(1)$ $F-CH_2-CH_2-CH(OH)-CH_3$
$(2)$ $F-CH_2-CH_2-CH_2-CH(OH)-CH_3$
$(3)$ $CH_3-CH(OH)-CH_3$
$(4)$ $Ph-CH_2-CH_2-OH$

Methylated spirit is

Which of the following alcohols will yield alkyl chloride at once on reaction with concentrated $HCl$ and $ZnCl_2$ at room temperature?

Select the correct statement regarding acid-catalysed dehydration of $tert$-butyl alcohol.