e.g., $C{H_3} - O - {C_2}{H_5}\, + \,HI\,\xrightarrow{{373\,\,K}}C{H_3}I\, + \,{C_2}{H_5}OH$
The alkyl halide is formed from the smaller alkyl group.
However, in case of tertiary alkyl ether following reaction occurs.
$\mathop {C{H_3} - OC{{(C{H_3})}_3}}\limits_{ter - butyl\,\,methyl\,\,ether} + \,HI\,\xrightarrow{{373\,\,K}}$ ${(C{H_3})_3}C - I\, + \,C{H_3}OH$
The alkyl halide is formed from the tertiary alkyl group and the cleavage of such ethers occurs by $S_{N^1}$ mechanism as the product is controlled by the formation of more stable intermediate tertiary carbocation from orotonated ether.
પ્રક્રિયા$(i)$ અને પ્રક્રિયા $(ii)$ માં પ્રાપ્ત ફોર્મિક એસિડના મોલ્સનો ગુણોત્તર કેટલો છે ?



$(i) \,\,\begin{array}{*{20}{c}}
{C{H_3}\,\,\,\,\,\,\,\,\,\,\,} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{C{H_3} - C - CH - C{H_3}} \\
{\,\,\,\,\,|} \\
{\,\,\,\,\,\,\,\,\,\,\,\,OH}
\end{array}\,\xrightarrow{{{H^ + }/heat}}\,\,\mathop A\limits_{[Major\,product]} \, + \,\mathop B\limits_{[Minor\,product]} $
$(ii)\,\, A\xrightarrow[{in\,\,absence\,\,\,of\,peroxide}]{{HBr,\,dark}}\,\,\mathop C\limits_{[Major\,product]} \, + \,\mathop D\limits_{[Minor\,product]} $
મુખ્ય નીપજ $(A)$ અને $(C)$ અનુક્રમે શું હશે ?
