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Questions
Write the reaction involved when D-glucose is treated with the following reagent:
Br2 water
What happens when D-glucose is treated with the following reagent?
Bromine water
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Solution
When glucose is heated with bromine water, it is oxidised to gluconic acid, a six-carbon carboxylic acid.
\[\begin{array}{cc}
\phantom{......}\ce{CHO}\phantom{.....................}\ce{COOH}\phantom{}\\
|\phantom{............................}|\phantom{..}\\
\phantom{.......}\ce{(CHOH)4->[Br2 water](CHOH)4}\\
|\phantom{............................}|\phantom{..}\\
\phantom{.............}\ce{\underset{\text{D-glucose}}{CH2OH}}\phantom{...............}\ce{\underset{\text{D-gluconic acid}}{CH2OH}}\phantom{....}
\end{array}\]
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(A)
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\[\begin{array}{cc}
\ce{CHO}\\
|\phantom{....}\\
\phantom{..}\ce{(CHOH)4}\\
|\phantom{....}\\
\phantom{..}\ce{CH2OH}
\end{array}\]
Account for the following:
What happens when D – glucose is treated with the following reagents
HNO3
