An organic compound $\mathrm{A}\left(\mathrm{C}_{4} \mathrm{H}_{9} \mathrm{Cl}\right)$ on reaction with…
An organic compound $\mathrm{A}\left(\mathrm{C}_{4} \mathrm{H}_{9} \mathrm{Cl}\right)$ on reaction with Na/diethyl ether gives a hydrocarbon which on monochlorination gives only one chloro derivative, then A is