Question

An organic compound $\left[A\right]$ having molecular formula $C_2{H}_{7}N$ on treatment with nitrous acid gives a compound $\left[B\right]$ having molecular formula $C_2{H}_{6}O$. $\left[B\right]$ on treatment with an organic compound $\left[C\right]$ gives a carboxylic acid $\left[D\right]$ and a sweet smelling compound $\left[E\right]$. Oxidation of $\left[B\right]$ with acidified potassium dichromate also gives $\left[D\right]$
Write balanced chemical equation of $\left[D\right]$ with chlorine in the presence of red phosphorus and name the reaction.

Answer 1

CH3COOH+Cl2−→−−Red P−HClCH2ClCOOHmonochoro acetic acidCH3COOH+Cl2→Red P−HClCH2ClCOOHmonochoro acetic acid
This reaction is called Hell-Volhard-Zelinsky (HVZ) reaction.