Question

Under what conditions glucose is converted to gluconic and saccharic acid?

Answer 1

Glucose is converted to gluconic acid by Br2 water and to saccharic acid by cone \[\ce{HNO3}\].

\[\begin{array}{cc}
\phantom{..}\ce{CHO}\phantom{.....................}\ce{COOH}\phantom{...............................}\\
\phantom{}|\phantom{.........................}|\phantom{...................................}\\
\phantom{..}\ce{(CHOH)4 + O ->[Br2/H2O] \phantom{...}(CHOH)4}\phantom{............................}\\
\phantom{}|\phantom{.........................}|\phantom{...................................}\\
\phantom{....}\ce{\underset{Glucose}{CH2OH}}\phantom{.................}\ce{\underset{Gluconic acid}{CH2OH}}\phantom{...............................}\\
\end{array}\]

\[\begin{array}{cc}
\phantom{..}\ce{CHO}\phantom{.....................}\ce{COOH}\phantom{...............................}\\
\phantom{}|\phantom{.........................}|\phantom{...................................}\\
\phantom{..}\ce{(CHOH)4 + 3[O] ->[Br2/H2O] \phantom{}(CHOH)4}\phantom{.............................}\\
\phantom{}|\phantom{.........................}|\phantom{...................................}\\
\phantom{....}\ce{\underset{Glucose}{CH2OH}}\phantom{.................}\ce{\underset{Saccharic acid}{COOH}}\phantom{...............................}\\
\end{array}\]