An organic compound '$\mathrm{A}$' having molecular formula ${\mathrm{C}}_4{\mathrm{H}}_{10}\mathrm{O}$ does not react with sodium metal. On hydrolysis by dilute ${\mathrm{H}}_2{\mathrm{SO}}_4$ it gives only one organic compound '$\mathrm{B}$'. The compound '$\mathrm{B}$' on heating with red phosphorous and iodine gives compound '$\mathrm{C}$'. The compound '$\mathrm{C}$' also obtained from compound '$\mathrm{A}$' on heating with excess of $\mathrm{HI}$. Identify the compound $\mathrm{A}, \mathrm{B}$ and $\mathrm{C}$.

What are the products formed in the following reaction?

What is the action of the following on isopropyl methyl ether? 

$\mathrm{Cold} \mathrm{HI}$

The major aromatic product $\mathrm{C}$ in the following reaction sequence will be :

How will you obtain ethyl chloride from diethyl ether.

What is the action of the following on isopropyl methyl ether?

Hot $\mathrm{HI}$

What is $\mathrm{X}$ in the following change?

The major product $\left[\mathrm{B}\right]$ in the following reaction is :