Question:
Which of the following reagents will oxidise glucose to gluconic acid?
Br$_2$/H$_2$O
HNO$_3$
[Ag(NH$_3$)$_2$]^+ / OH$^-$
Which of the following reagents will oxidise glucose to gluconic acid?
Br$_2$/H$_2$O
HNO$_3$
[Ag(NH$_3$)$_2$]^+ / OH$^-$
Br$_2$/H$_2$O
HNO$_3$
[Ag(NH$_3$)$_2$]^+ / OH$^-$
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Gluconic acid formation requires mild oxidation of the aldehyde group only, not the entire molecule.
Updated On: Jun 3, 2025
- I, II only
- I, III only
- II, III only
- I, II, III
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The Correct Option is B
Solution and Explanation
\begin{itemize}
\item \(Br$_2$/H$_2$O\) and Tollen's reagent \([Ag(NH$_3$)$_2$]^+\) oxidize the aldehyde group of glucose to gluconic acid.
\item HNO$_3$ is a strong oxidizing agent; it oxidizes both -CHO and -CH$_2$OH to dicarboxylic acids, not just gluconic acid.
\end{itemize}
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