The number of -OH groups present in the structures of bithionol, terpineol and chloroxylenol is respectively

Identify the products $R$ and $S$ in the reaction sequence given

$\left(\mathrm{CH}_3\right)_3 \mathrm{COH} \xrightarrow{\mathrm{Na}} P \xrightarrow{\mathrm{CH}_3 \mathrm{Br}} Q \xrightarrow[\Delta]{\mathrm{HI}} R+S$

Arrange the following in the correct order of their boiling points.

An alcohol $X\left(\mathrm{C}_3 \mathrm{H}_{12} \mathrm{O}\right)$ when reacted with conc. HCl and anhydrous $\mathrm{ZnCl}_2$ produces turbidity instantly. The alcohol $X$ can be prepared from which of the following reactions?