Chemistry - ALCOHOL & ETHER Question with Solution | TestHub

In the case of an unsymmetrical ether, the alkyl halide is always formed from the smaller alkyl group. This happens because the ${\mathrm{I}}^{-}$ ion being larger in sizc approaches the smaller alkyl group to avoid steric hindrance.
Caution $HI$ is an acid and when it is hot and concentrated it means we are having an excess of $\mathrm{HI}$. Iodide ion produced from $\mathrm{HI}$ in this reaction will act as a nucleophile.